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HTC: Thin smartphones are better than large battery

http://pocketnow.com/smartphone-news/htc-thinks-we-want-thin-phones-not-big-batteries-is-it-right
HTC made a statement that people want thin smartphones more than large batteries. Imo battery-life is much more important than the thickness of a smartphone.
What do you guys think?

wayne850 said:
http://pocketnow.com/smartphone-news/htc-thinks-we-want-thin-phones-not-big-batteries-is-it-right
HTC made a statement that people want thin smartphones more than large batteries. Imo battery-life is much more important than the thickness of a smartphone.
What do you guys think?
Click to expand...
Click to collapse
double phone size and walk around with 3000-4000 mAh battery! **** yea!

For me too. I would prefer a longer battery life.
Sent from my MB525 using XDA

motorola made a good step with the razr maxx. it's just about 2mm thicker and its battery is almost twice as large as the original razr (1780 ->3300mah)

I'd gladly trade a couple of mm and 10-15-20 grams weight to have a ~2500mAh battery in my One S!

Well, I think from what HTC had learned from customers, it could be a valid statement to say thin phones are better than large batteries from the sales point of view. The reason is simple, we want a phone which looks great even if the battery is not that ideal. Because when we take our phone out, it is the appearance which attracts us and others not the numbers presenting the battery capability, visual impression always stronger than spec sheet.
Just look at the MAO defect thread here, see how many people still stick with the black version even if there are well known problem/risk and they have to send the phone back several times to try their luck. (If I were that in love with black version, I would do the same) Does battery capacity annoy them? Compared to the MAO thing, not at all!!
So, I back HTC's statement only from the sales point of view. Of course a phone with both the same thinness and larger battery is better, but given the current technology constraints, you have to compromise one to another right? And I would happily go for thinness rather than 3000mAh.
Cheers!

h.han said:
Well, I think from what HTC had learned from customers, it could be a valid statement to say thin phones are better than large batteries from the sales point of view. The reason is simple, we want a phone which looks great even if the battery is not that ideal. Because when we take our phone out, it is the appearance which attracts us and others not the numbers presenting the battery capability, visual impression always stronger than spec sheet.
Just look at the MAO defect thread here, see how many people still stick with the black version even if there are well known problem/risk and they have to send the phone back several times to try their luck. (If I were that in love with black version, I would do the same) Does battery capacity annoy them? Compared to the MAO thing, not at all!!
So, I back HTC's statement only from the sales point of view. Of course a phone with both the same thinness and larger battery is better, but given the current technology constraints, you have to compromise one to another right? And I would happily go for thinness rather than 3000mAh.
Cheers!
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Click to collapse
I got black because gray is slippery, Im clumsy already, dont need another affect helping to drop phone

well the One S is incredibly slim AND has great battery life...
So I say, Why not have both ???

azzledazzle said:
well the One S is incredibly slim AND has great battery life...
So I say, Why not have both ???
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It all depends on what u call "great battery life". I call "great battery life" when I have to charge my phone once a week. (happend to tattoo with larget battery).
S2 I call extremly bad battery, One S I call not that bad battery

1 week ?? holy ****...
the last phone i had that lasted a week was a nokia..
those old nokia will outlive us all

1 week is probably a little to enthusiastic, but 3 days would be ideally. Imagine that you are on a little trip in the woods with no access to electricity

virtq said:
1 week is probably a little to enthusiastic, but 3 days would be ideally. Imagine that you are on a little trip in the woods with no access to electricity
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Thats just what ppl want from phones At same time I understand it wont happen useless the technology changes to some super uber low power consume

All I need is my 14-16 hours of use. and thats pretty much what i get on most phones. i hate big batteries and oversized covers

I would rather have a thiner phone.
It's all about managing battery life.

I'd rather have a thin phone because that will impress my buddies.
They aren't going to know that I have 30 hours of battery life if it was a thick phone anyway. And even if they do, they probably won't jizz their pants.

wilcoholic said:
I'd rather have a thin phone because that will impress my buddies.
They aren't going to know that I have 30 hours of battery life if it was a thick phone anyway. And even if they do, they probably won't jizz their pants.
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So ur the person whos gonna buy Hummer, and stick in muds while "Smart" goes simply true there
Cmon, you really buy things just because they look good, or you need the oportunities it give? At this point - the possibility to use phone at all (no battery no phone).

Well, it seems we can have both. I would prefer a larger battery but if my One S gets the kind of battery life we've seen so far I will stop caring about how big the battery is. And like Adjust said, its all about battery management.

Thinner device of course!!
Around 8mm is the ideal size. As long as a battery lasts 12 hours throughout the day I'm fine with it.
It's all about having a sleek device that is eye catching and brilliant at the same time. Battery can be conserved through options, build design can not.

Why is everyone racing for a thin smatphone, I hope HTC reads all these comments because the majority of us would rather have a longer lasting battery
Sent from my HTC Sensation 4G using XDA

Moto hits the point for both tastes so come on htc, start offering a thicker one s with more battery life/exchangeable battery (and maybe sd card slot?!).
So only the best for both worlds...

Does slim extended battery for S5 G900T really works?

Should I try slim extended battery on my new Galaxy S5 G900T? My friend who owns one for his Note 3 from MPJ said it has a bit more power but still fit the original back. How do they get more power in the same size? I don’t expect it is 4300mAh, but at least last 2-3 hrs longer. Maybe I should try it out myself…

ishnum said:
Should I try slim extended battery on my new Galaxy S5 G900T? My friend who owns one for his Note 3 from MPJ said it has a bit more power but still fit the original back. How do they get more power in the same size? I don’t expect it is 4300mAh, but at least last 2-3 hrs longer. Maybe I should try it out myself…
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This shouldn't be a difficult question to reason out for yourself. Do you really think if it was possible to cram 4300mAh into a battery of the same size, Samsung, one of the world's leading tech companies, would be total retards and use a battery with 30% less juice in their flagship phone? use your brain ffs!

Zamboney said:
This shouldn't be a difficult question to reason out for yourself. Do you really think if it was possible to cram 4300mAh into a battery of the same size, Samsung, one of the world's leading tech companies, would be total retards and use a battery with 30% less juice in their flagship phone? use your brain ffs!
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and your a likeable guy huh?........... Your so smart your must be an Aerospace Engineer... he was asking a basic question... and BTW..YES... The 3200mAh battery on Ebay lasts longer..So Samsung could have done better but..... They don't make it max capacity in hopes that people will buy extra batteries from them. Be nice and not mean to people asking basic questions.. your a senior member so please act like it.

Martinjv71 said:
and your a likeable guy huh?........... Your so smart your must be an Aerospace Engineer... he was asking a basic question... and BTW..YES... The 3200mAh battery on Ebay lasts longer..So Samsung could have done better but..... They don't make it max capacity in hopes that people will buy extra batteries from them. Be nice and not mean to people asking basic questions.. your a senior member so please act like it.
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Click to collapse
I agree :good: :good: :good:

Zamboney said:
This shouldn't be a difficult question to reason out for yourself. Do you really think if it was possible to cram 4300mAh into a battery of the same size, Samsung, one of the world's leading tech companies, would be total retards and use a battery with 30% less juice in their flagship phone? use your brain ffs!
Click to expand...
Click to collapse
Actually its more than 50% more capacity, I have no clue where you got 30 from, use your brain ffs!
---------- Post added at 02:52 PM ---------- Previous post was at 02:44 PM ----------
Martinjv71 said:
and your a likeable guy huh?........... Your so smart your must be an Aerospace Engineer... he was asking a basic question... and BTW..YES... The 3200mAh battery on Ebay lasts longer..So Samsung could have done better but..... They don't make it max capacity in hopes that people will buy extra batteries from them. Be nice and not mean to people asking basic questions.. your a senior member so please act like it.
Click to expand...
Click to collapse
That's wrong as well, not making it higher capacity is hardly going to make people go and buy more batteries from them is it, its going to make people go buy more batteries based on the false advertising from the likes of MPJ. And while I am on the object, I would love to know how the hell they get away with claiming the mAh that they claim on these things because it's plainly obvious without even going near one of the batteries that it isn't possible.
What WOULD make people go buy more Samsung batteries is if they had a 'premium' higher capacity version and sold it for a higher price. People would fall over themselves to buy it and Samsung would make a killing. Since they have never done this, I suspect it's highly likely that although it may be possible to squeeze a bit more out of the same size, the methods in doing so mean the battery is less stable, less reliable, and doesn't work for as long, as seen in all the batteries like this from Anker to MPJ.
Now what WOULD be interesting is a battery that is physically larger and takes up the space used by the water proofing. So you lose the waterproofing but gain a big chunk of battery power, now that I think IS possible, it just needs someone with the foresight to produce it. There are many people, myself included, who aren't the slightest bit interested in the waterproofing because we don't plan on dropping it down the toilet or into the bath every 5 minutes so would gladly sacrifice this for a nice bump in battery life.

I always buy extra batteries for my phones. Note 1, Note 2, S4, and now the S5.
I have yet to see a battery that was the same size as OEM and had higher capacity. Anker had one that I tried that had I think 100ma higher capacity, but when I placed the battery in my phone it was a tighter fit. So really in my books it was a bigger battery.
I am not saying its not possible to get higher capacity than OEM in a slim battery, but I have not come across a slim battery that met lofty claims yet. For this reason, I now tend to stick to an OEM battery as I can trust that it will operate in a predictable manner. Add in the waterproofing seal on the current S5, I would try my best to stick with a battery that maintains OEM dimensions.

Sorry for the thread necromancy!
I know this is blatant thread necromancy but the viewpoints left here are skewed at best.
I am what you would call a vaper. I work for a company that thrives on making and selling electronic cigarette juice. i also get to see how LI-ION Cells have evolved as LI-ION and LIPO cells are choice for our devices albeit more commonly in a tube cell form.
I have seen both 18650 and 26650 cell specs explode over the last year and to discount innovation and advancement in favor of an ideal that it will always be the same is rather preposterous. It all depends upon what is crammed into the housing. I have seen 2Ah 26650 cells with a 30a load rating and 6 months later here comes a 4.2Ah cell sporting 40a continuous with 60a 7 second pulse rating. I got to torture test these new cells as a daily vape as well as the old. The new cells were clearly head and shoulders above the old. Lipos are the same way. I have a cell pack in a 2s1p config that sports 4.2ah with a 65c/130c+ rating.
i'll spell the lipo bit out. A c rating in the lipo world can be used to find your ah rating. 65*4.2=273 continuous run amp load.
130*4.2=546 max pulse amp load.
the 2s1p stands for 1 pack of 2 cells wired in series for a nominal voltage of 7.4 (8.4 when fully charged.)
The point is the size of this pack is very small and packs a wallop compared to other lipo packs that have the same ratings but are larger in physical size. My pack however is top of the line from one of the most well known and reputable cell pack makers. The others are knock offs.
To cut it short perhaps the OEM LI-ION packs in our phones are the same way. Perhaps the OEM packs are of knock off make and the 4200mah packs that have been found are more efficient and of better quality. With the way phones are phasing out expandable storage in favor of "data hogging" cloud storage (which mind you opens you to risk of EXPENSIVE data overages) i would't be surprised to see our precious little phone companies like samsung and LG and others using cut corner tactics. Until i see actual usage and testing with results on a graph, i wouldn't pass judgement. You might just get your mind blown like i do just about every other day.
Technology is an ever evolving creature and it's simply FASCINATING to sit back and watch it all take new form and make our lives better.
again i apologize for the thread necromancy but there were key pieces of information missing with a mindset of bash the newcomer. For the price i'm game to try it for sure!
If i have offended anyone i apologize in advance and assure you that in no way am i out to cause any drama or hurt feelings.
As a matter of fact i'm off to study these mpj packs to see how people feel. Just might find myself a graph full of information as well!
Cheers!

I Like Big Batts, and I Cannot Lie (rambling musings on battery size)

"I like this phone, but I wish the battery wasn't so big."
"It's such a convenience to carry around a charger and data cable."
"This iPhone lasts forever on a charge!"
3 phrases you'll never hear anybody utter.
The phone news sites for the last day or so have reported that Motorola has filed to trademark the name "Droid Maxx", and rumors for a "Maxx" version of the Moto X or X+1 (or could be a G). For those that don't know, the Maxx line of Motorolas are thicker than their slimmer counterparts, packed with huge batteries. 3300mAh for the Razr Maxx and HD Maxx, 3500 for the Droid Maxx. And apart from a HSPA version of the original Razr Maxx (XT910), they're exclusive to Verizon in the USA.
But why is this so uncommon? Why are there so few phones that come with bigger batteries? Big enough to power the huge screens phones have these days, and the power-hungry processors inside? And why are so many companies going with non-replaceable batteries? Even on some phones with removable backs like the Moto line and the OnePlus One, where you can see and touch the battery, it's not replaceable.
There are a couple reasons I can think of why manufacturers are leaning towards non-replaceable batteries. One is construction. By making the battery integral, you can shave a layer or two of plastic, making the phone thinner or making the battery bigger. It can also make the phone more solid, or at least feel solid. A HTC One, Sony Z2, or iPhone certainly feels like a more solid and high-quality device than a Samsung Galaxy with a flimsy battery cover. And face it, nobody likes chasing down a flying battery cover when they drop their phone, hoping it didn't break the cover or the little tabs that hold it in place.
The other reason is so the user can't replace the battery. Every so often, you'll see on the news sites a story about a Samsung Galaxy phone catching fire or exploding. The reason is always the same: cheap/knockoff/counterfeit batteries. Or maybe it was a cheap charger (as is the case anytime somebody's gets toasted). But by at least preventing the battery from being replaced, they can prevent you from buying a $5 battery from China off eBay.
I suppose planned obsolescence could be a reason too. Li-ion and Li-po batteries have a life of a few hundred cycles. But there's only a few hundred days in a year, and phones often get charged more than once a day. So that means most of our batteries turn to crap and degrade after about a year, give or take. And if you can't replace the $10-20 battery, you have to replace your multi-hundred-dollar phone, or at least spend a bunch to get it repaired (if you don't want to do it yourself, or don't realize that you probably can).
But here's the thing: bigger batteries last longer. That might sound like an obvious statement, but it's not just about how long a charge it'll hold. The bigger a battery, the lower the internal resistance is. That means it degrades slower over time. Combined with requiring less charge cycles, it takes longer to degrade over time. Lower internal resistance also means a bigger battery is more efficient. A jump from 2000mAh to 3000mAh isn't just a a 50% increase in capacity, but a more than 50% increase in actual runtime on a charge.
So why can't we get bigger batteries in our phones? Is thin really that in? For example, look at the Droid Ultra and Droid Maxx. The Ultra is pretty dang thin at 0.28" (7.18mm), vs the still fairly svelte Droid Maxx at .33" (8.5mm). Plus about an ounce (30g) in weight. But the Maxx has a massive 3500mAh vs an anemic 2130mAh on the Ultra. That's a 64% increase in capacity, and it without making much of an extra burden in your pocket.
I'm not saying that everybody should follow my opinion and start asking for fatter phones - maybe you want/need something as svelte as possible. All I'm saying is that I want the option of having a bigger battery, or at least a replaceable one. I'm increasingly less and less a fan of Samsung, but at least they're keeping with replaceable batteries. And if you pick up a popular one (Galaxy S series, Note), you can pick up an battery/case like Zerolemon or if not something that fat (with 8500-10000mAh batteries), there are slimmer options. Other popular devices might have cases with built-in batteries, but that's just not the same (plus they're fat and longer as well). And carrying around a charger/cord is an annoyance as is one of those battery blocks or whatever they're called.
Manufacturers are also touting their software that has so-called ultra-power saving modes, but that's just not the same thing (since if you need to use the mode, you're also not using your phone). And it's no substitute for simply cramming a bigass battery in the phone.
I'll conclude my musings with a story - a true one.
In November I was forced to walk home from work because of a flat tire. Rather than walking down a main road, I went down a side-road (it was quicker) that wasn't well lit. Tucson isn't really a city, it's more a big town, so it wasn't like I was walking down a sketchy alley like you see in a movie. It was just a road through a residential area. Right by a highschool. Long story short, I got jumped by 2 guys, beat up and stabbed in the abdomen. I'll spare the details (it wasn't cinematic - I got my ass kicked and couldn't fight back). I tried calling the 911, but touchscreens don't work when covered in blood. A passer-by called for me, and help was on the way.
At this point in time, I got my phone to respond, and I called my parents. My phone was a Motorola Droid Razr Maxx, and it's beefy 3300mAh battery was at 69% after a 11 hour shift at work, which included texting my boss and complaining about not having enough help, and complaining on Facebook about how much my day was sucking (little did I know...). By the time I called my parents again and my boss to let him know what happened, my phone was down to 63%. All the police left me with was my phone, keys and wallet. It should have occured to me to ask for my charger (and work clothes - they cut all mine off and put them in evidence) from my backpack, but hey, I just stabbed and the crap kicked out of me and wasn't thinking very clearly.
I spent the night in the hospital, during which I used my phone to text and FB to let my friends and family know what happened (and to check every few minutes for "get well" messages). By the time a friend brought me my backpack (which the cops were nice enough to drop off at my work for me), my battery was at 9%.
The point is you can't always rely on having a charger or a spare battery when you need one. And I don't mean "need" as in you want to charge it because you're on a hot streak on a game, or you have to go into a power-saving mode. I mean need it. That's why I want bigger batteries in phones and more phones with them. On a side-note, it's a good idea to memorize a few important phone numbers (friends/family/work), because you might not even have your phone when the worst happens, or you have it but the battery completely dies.
And BTW, I'm fine. Went home that evening, was up and about in 2 days and back at work a week after. I was very lucky. Cops never found the guys though.

I much prefer a power bank. Granted my first instinct used to be get a larger, high capacity battery and a case to fit it in..
But then my flip cover became important to me, so I ended up with a power bank.. and actually I'm much happier and more mobile this way.

I either prefer a phone that is really power efficient or has a huge battery

Lol love the Sir Mixalot reference

I just replaced the batteries in my HTC One V (which is a "non-replaceable" one). After viewing a youtube video that showed the procedure I was able to do it during 15 minutes.
I think this is not much time for 2 years of usage. Why would I want to remove the battery? A removable battery requires extra room for an elsewhere unneeded cover.
Even if I don't want to do it myself I could spent the 30$ for the replacement by a professional or I would buy a new phone because a two year old model is no longer powerful enough...

frakn said:
Why would I want to remove the battery?
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To pop in a fresh spare, duh.
I have 2 phones at the moment. A Samsung Galaxy Light and a Nexus 4. The Galaxy Light has a 1800mAh battery. Pretty small, but so is the phone. But it's replaceable, so I bought a spare. I only recently got the Nexus 4, 2nd hand. Replaced a broken screen, and while I was at it, I put a brand new battery in. It wasn't difficult, but it's not exactly something you can do on-the-fly, or would want to. Being stuck with the internal battery, I'm toying with custom kernels to maximize battery life.
If you read my whole post, including my sob story, you'll understand my point is that your best plans and intentions are probably going to be thrown out the window when the SHTF. You won't always have a charger, or a spare battery, or your power bank. When in the hospital, I asked the nurses/orderlies if anyone could lend me a charger, even for a brief time, but they all had iPhones.
Too many phones have smallish batteries because people want thin phones, and there aren't enough options available for those that want phones with bigger batteries. The point is that you never know when you might need extra time from your phone, be it an unexpectedly long day at work, a broken-down car on a road trip, or an overnight stay at Hotel Liverstab.

I don't want to insist in my point but even a large battery will be empty in the moment you will need it. That's murphys law...
You are right, bigger batteries would be better but people want tiny phones with giant screens and endless running times and tremendous computing/gaming power. All of them is simply not possible. So constructors ask their marketing departements what to do. And _most_ people can live with existing solutions.
I think if you search hard you will find somewhere a "survival phone" with a hand crank like this :
http://www.dx.com/p/dynamo-hand-crank-usb-cell-phone-emergency-charger-24036#.U-DHpERceVk included. :silly:

Good thread and I agree completely. The only issue I have with your reasoning is that there ARE large battery, high spec phones on the market. But phones have become like jewelry and practical considerations aren't a priority for most users (cough, cough...... The iPhone). The trend towards thinner phones is driven by looks, ego and trendiness since that's what the majority of smartphone users (iPhone type teens and housewives) are looking for. The Huawei Honor 6 isn't the best looking phone on the market but at 5 inches fhd, a massive 3100mah battery, superb processor, dual sim half the price of comparable phones and only 7.5mm thick you would think it would outsell everything. But it probably won't once it becomes widely available. life teaches us otherwise. After all, what use is Kim Kardashian outside of the bedroom? But she seems to be doing ok!

Galaxy S3 with 4400mAh
I have a Galaxy S3, I bought it since the release day (2 years now). I bought also a 4400mAh battery from amazon, and guys, this battery is amazing.
I travel a for my job, I spend on the plane more than 8 hours and I can use the phone without worry about the battery (and also I always carry on with me the original battery), when I am not traveling I use waze to drive to the office that is 30 minutes away from my home without traffic and I use toghether with waze when I am driving Google Music. Sometimes I play plant vs zombies 2, whatsapp, twitter, facebook, evernote, BBM, etc. At the end of the day my battery usually is 15%.
The only inconvenient is the cover, because the battery is bigger, and need another cover, this cover is now broken after 2 years and I need to stick it with some tape hahaha. It does not look to nice but I prefer to have this battery than the original one.

I would happily use a thicker phone if it meant longer batter life and better battery efficiency. My GS3 got about 3 hours of screen-on time when the battery was new. I'd happily have a thicker phone if I could get 8-9 hours SoT out of it.

i Agree, but just in case i have a power bank for my Huawei P1.

Personally I don't mind batteries that drain quickly by XDA's standards. I generally don't use my phone on a continuous loop very much and it's very rare that I'm not around a charging device. So I guess I'd fall in the "give me slimmer" camp. I like my phones to be slim and light over bulky and heavy.

I don't think bigger batteries are the long term solution. Don't get me wrong, I would love to see a battery as large as a screen fit into a phone form-factor, but I think there are still LOTS of gains to be made in software optimization.
IMO, one of the reasons why Linux typically has inferior battery life compared to Windows / Mac is with patents. Google has made steady improvements with Android, but I think if Android was as efficient as iOS we would hardly be complaining about 2800/3100 mAH batteries.

xperia z3c kinda broke the taboo of usual 1 day crap battery , i hope manufacturers follow sony;s trend and for once dont compromise on battery

Lol
I read the title as i like big butts

Battery Mugen Power 6640 mah with qi charge and nfc

Battery Mugen Power 6640 mah with qi charge and nfc is a nice opcion.
Good quality , have a case with qi charge and nfc functional.
https://rover.ebay.com/rover/0/0/0?mpre=https://www.ebay.es/ulk/itm/302632998267

is this a legit battery? seems too good to be true..

Not quite too good to be true!
Seemanthinis said:
is this a legit battery? seems too good to be true..
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Yeah, "extended batteries" are a thing, been around over a decade
In this case (and typically) it's 2 regular dimension/capacity cells in one wrap, each with their own protection circuits and with parallel wiring between those and the phone. Dead simple, they're all over the place, DIYable quite easily and safely if you have 2 new batteries:
Just parallel up the +/- terminals, keeping the wires as short as poss (ideally even length to the phone contacts, personally I'd make it flexible enough to flip them over periodically to extend lifespan).
Then play around with thermo contact until it's happy (obvs the hotter battery is the one closest to phone and it's contact will already be connected so no worries there)
Throw on a fatter cover or mod and done.
Only "too good to be true" bit is that in theory when one cell gets tired, it'll drag the other down with it, because the manufacturer won't have invested in a proper charge balance system (no need IMHO, would just shove the price up, cost space and probably wouldn't restore enough use cycles to be worthwhile if you were using sub-"premium" cells)
Speaking of price - as I've covered, this "tech" can be done for WAAAY under 24.00EUR. And I guarantee you Mugen etc aren't spending more than a couple of bucks per battery!
Generic extended battery covers are cheap, available and all made to fit a doubled up battery - Only exceptions are tripled-up batteries (much rarer than they used to be) and once I found a cool N4 setup with a standard size cell hiding under one twice it's surface area/capacity (same thickness) making for a unique-looking triple capacity battery with the thickness of two. Maybe they went to the effort of a charge balancer for that one, but even if they didn't, who cares! Legends.
Couldn't say which off top of my head but one of the contacts will be NFC of course, (so bear in mind if anyone goes there)

what other best battery options are available with the normal size of battery so i can replace the original battery which is dead now.

It looks like you can also buy from mugen directly from their site.
https://mugenbattery.com/shop/samsu...ed-6640mah-battery-for-samsung-galaxy-note-4/
Has anyone here used this battery before? This looks really interesting, especially the ability to use NFC with an extended battery.
I would guess a custom kernel will be needed to support recognizing the extra capacity when using a custom ROM.

Review: Zerolemon LG V30 7000 mAh extended battery case

I ordered this case with a 50% discount from Amazon.com, so I'm only half biased here. If I would have received this case free, this would be written differently, as a disclaimer.
I've had this case for a little more than a week, and I must say that it's pretty handy. To get there most use, I suppose the meaning of the instructions might indicate discharging the phone to about 2-3% usable power before pushing the little button on the reverse of the case. Complete power cycles on advanced lithium cells isn't necessary, but could improve life of the device battery, not the extended battery. Using the battery and putting the phone in the case can be done by an early teenager. Very simple design indeed, but effective. One thing lacking in the instructions, is that it's written like when these were installed on devices with removable batteries and went straight into the terminals as a replacement. The days of running my battery on a note 4 until at two percent for about 8 hours are over. I think as an auxiliary battery, it's better to start charging around 15%, because the LG V30 starts doing its battery saving thing then. As far as cost and value, the benefits outweigh the cost moderately because if you're willing to part with what you'd spend on Bluetooth speakers, decent earbuds, or a case, for example, maybe you'd like to be able to do long trips, or drive Uber or Lyft for extended periods without plugging into a 12v charger for a couple days.
I was able to squeeze three days of continuous use, navigating on the bus system in Phoenix, bumping my Apple music, browse news, take lots of video, use Twitter and Instagram for hours, edit articles on Wikipedia, and another wiki without worrying about losing my changes.
I'm in Arizona, where heat can sap a 3000 mAh battery's power very quickly, and this heavy, however robust product exceeds my expectations over and over. I'm considering a 10000 mAh battery for my Note8 next. One cool feature is the center of gravity of all things considered. If dropped, the heavy side falls first, and though the case provides no protection, the concept of the peanut butter on bread dropped from a ladder landing peanut butter side down still holds true here. Most falls from height should be on the battery because of this phenomenon called gravity.
Only downside is the weight. It's almost a pound more. But if you're me, you're caring a gallon of water with you which is about seven pounds.
I rate this accessory a 4.75 out of 5 just because of the cumbersome design.
I'd improve the spread of the load across the entire device with two or three cells connected around the camera and fingerprint sensor in addition to the big cell at the bottom, and even out the case, so that it's not all at the bottom.