Related
Look what I found on Mugen's international site. Of course it has a new back cover for the phone because the battery is so chubby. But 4500mAh, dang!
http://www.mugen-power-batteries.co...tery-for-lg-optimus-2x-p990-t-mobile-g2x.html
thanks for the link but NO WAY! $100+ is way to rich for my blood...
i just ordered 2 of these. i like the idea plus they are solar and charge all my gadgets on top of my phone. and shipping from china is 22 for dhl but they are worth it and are the size or smaller than our phone! holds almost twice the charge with multiple voltages including 3.7v which is ours.
Total was around $52 after shipping but just sell one or keep the other for twice as much! ill repost this link in thread.
http://www.chinavasion.com/product_...arger-for-mobile-phones-and-mini-usb-devices/
Dolphinwigs said:
thanks for the link but NO WAY! $100+ is way to rich for my blood...
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Too expensive and UGLY
Wow, out if my budget.
I could buy 3 external batteries including shipping, for that.
Sent from my LG-P999 using XDA Premium App
look at the back cover on that thing and then the shape of the batter! what a waste of space!
I am sorry but I get plenty of juice out of my battery, i dont know what i would do with a battery twice the size let alone three times the size of my current one... that **** would last all week without needing a recharge!
honestly for the same price, little bigger and more juice i could just lug around a mini nuclear reactor... where is tony stark when you need him? im trying to hook my phone up with that mini arc reactor bro!
Yeah, that is way too bulky for the size. If they wanted to extend the back of it, why wouldnt they make the battery a sort of P shape that extends further up the back so it doesnt have to bulge as much?
I MIGHT buy a battery that only makes the back case flush with the camera. I already dont like that camera hump on the back, so a battery that only needed to extend that much or a tiny bit more would be perfect. Maybe like a 2500mAh?
Thread cleanup, back on topic please.
My question here is this: Is it completely safe to use this battery?
I'm thinking perhaps in the future I might want to buy one because I deplete my battery extremely fast with constant use. The only thing I'm worried about is if it will hurt my phone in any way.
lightningomega said:
My question here is this: Is it completely safe to use this battery?
I'm thinking perhaps in the future I might want to buy one because I deplete my battery extremely fast with constant use. The only thing I'm worried about is if it will hurt my phone in any way.
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you know I was thinking this too, but I did watch some reviews on youtube on their other 4500 mah extended batteries for other android phone models. It doesn't look that bad, infact it seems to make the phones look like a tiny miniature powerhouse PCs from the future.
Right now it says their sold out and will get new stock in June, I'm definitley gonna get one. If like the reviews say that some people don't have to charge this extended battery after 3 days of heavy use then I'll be in G2x heaven. Infact, I would bet as LG was in the design proces for the phone that they were shooting for a phone that could last for 3-5 days on one battery charge, but since marketing research thinks consumers will only buy a slim form factor cell phone, they opted to cut corners on performance for cosmetics, which absolutley sucks in my opinion.
just ordered it. Will post a review once I receive it.
I ordered the 4800 one for my atrix as well. I just received that one today. Will try it out when I get home!
dilwaala said:
just ordered it. Will post a review once I receive it.
I ordered the 4800 one for my atrix as well. I just received that one today. Will try it out when I get home!
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Right on, can't wait for the review. Just wanted to ask though, I saw that they were out of stock and that they'd get more in stock and if I ordered on that certain day I looked on the site, I would get it on June 3rd. I looked at the site again and it said if I ordered that day I'd get it on the 10th, now I checked again today and it said if I ordered I'd get it on the 6th. What gives with all the different ship dates?
You also said you just got the 4800 for your Atrix.
When did you order that one and how long did it take for you to recieve it?
How was it shipped out to you, UPS or USPS?
How did you purchase, with credit card or paypal?
How professional are they and quality of the product?
Does the product come with a specific charger?
And how long did your Atrix last on standard battery and how long does the Mugen battery last?
Sorry for the questions, I'm just very interested in this battery and I'm so ready to purchase, just waiting till they get it in stock, before I ordered, although I'm so anxious just to put in the order now and wait for them to ship it out to me on the proposed date a couple weeks later. But is that wise?
Remember most extended batteries are scams
Sent from my LG-P999 using Tapatalk
Suprah said:
Remember most extended batteries are scams
Sent from my LG-P999 using Tapatalk
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Check the forums for an easy to build tester. I tested a few, and stock batteries for g2 and vibrant, none of the extended ones lived up to their claims. They had more capacity, but not what they claimed, and some caused instability. Stock oem tested within 5%. Extended varied wildly, best being about 25% shy of stated. Imo, that's false advertising at best.
I still have the tester set up. Ship me a battery and I'll test it for you if you like. I'll even pay to ship it back to you, but I will post about it here if you do. Personally, I'm not wasting any more money on them for myself.
jacob808 said:
Right on, can't wait for the review. Just wanted to ask though, I saw that they were out of stock and that they'd get more in stock and if I ordered on that certain day I looked on the site, I would get it on June 3rd. I looked at the site again and it said if I ordered that day I'd get it on the 10th, now I checked again today and it said if I ordered I'd get it on the 6th. What gives with all the different ship dates?
You also said you just got the 4800 for your Atrix.
When did you order that one and how long did it take for you to recieve it?
I ordered it on 5/13 and received it on 5/20
How was it shipped out to you, UPS or USPS?
Came via USPS
How did you purchase, with credit card or paypal?
I used paypal. Had no issues
How professional are they and quality of the product?
The quality of the product is awesome. At least so far. This is my second Mugen battery. I had one for the nexus one as well. worked just fine. The one for the atrix ROCKS right now. On average usage (with stock battery) I would get about 1.5 days. With the Mugen, I hit 3 days with 1 full charge under the same usage pattern
Does the product come with a specific charger?
Nope. Just the battery and the back cover.
And how long did your Atrix last on standard battery and how long does the Mugen battery last?
1.5 days vs. 3 days
Sorry for the questions, I'm just very interested in this battery and I'm so ready to purchase, just waiting till they get it in stock, before I ordered, although I'm so anxious just to put in the order now and wait for them to ship it out to me on the proposed date a couple weeks later. But is that wise?
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You also said you just got the 4800 for your Atrix.
When did you order that one and how long did it take for you to recieve it?
I ordered it on 5/13 and received it on 5/20
How was it shipped out to you, UPS or USPS?
Came via USPS
How did you purchase, with credit card or paypal?
I used paypal. Had no issues
How professional are they and quality of the product?
The quality of the product is awesome. At least so far. This is my second Mugen battery. I had one for the nexus one as well. worked just fine. The one for the atrix ROCKS right now. On average usage (with stock battery) I would get about 1.5 days. With the Mugen, I hit 3 days with 1 full charge under the same usage pattern
Does the product come with a specific charger?
Nope. Just the battery and the back cover.
And how long did your Atrix last on standard battery and how long does the Mugen battery last?
1.5 days vs. 3 days
By the way, I had a Milestone as well, which also had an extended battery but from Seidio, and that battery i was NOT happy with. Did not add anything in addition to the stock.
The only way to test a battery is using an external load / voltmeter jig. Based on my past experience with Mugen, their 4500mAh battery will test out much lower, my bet is somewhere around 3400mAh. Just enough to make you feel like you got value for your money. Theres no way the average consumer can compare battery life using the phone itself.
rotohammer said:
The only way to test a battery is using an external load / voltmeter jig. Based on my past experience with Mugen, their 4500mAh battery will test out much lower, my bet is somewhere around 3400mAh. Just enough to make you feel like you got value for your money. Theres no way the average consumer can compare battery life using the phone itself.
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Yup you're right. I do not have a voltmeter handy so I'm just relaying my observations.
So far, it's been good (I'm still talking about the Mugen Atrix battery since I haven't reeived the G2x one yet). Far better than the stock battery (not just by a couple of hours but by days) so I'm happy
rotohammer said:
The only way to test a battery is using an external load / voltmeter jig. Based on my past experience with Mugen, their 4500mAh battery will test out much lower, my bet is somewhere around 3400mAh. Just enough to make you feel like you got value for your money. Theres no way the average consumer can compare battery life using the phone itself.
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I'll pay a hundred bucks to get at least 2-3 days on one charge. Anything to get rid of this miserable battery life that makes you feel anxiety when you're away from an outlet, especially if you use the G2x like I do which is on the internet constantly browsing and watching vids and playing vid games.
Although on another note, auto airplane mode does indeed make the phone somewhat viable and stops the drastic bleeding when the phone is not being used, and I also notice that under settings> accounts & sync> background data turned off also helps very much with the horrible battery drain when on standby.
Tmobile has sent me a replacement battery which I had to pay $10 shipping, so I might recieve it on the 3rd of June, I'll hold off on the Mugen 4500 mah and see how the replacement from tmobile goes and play around with the other settings I just mentioned. I just don't like the idea of switching out the batteries each time. Gonna put wear and tear on the battery cover and all, so even though I have an extra battery, I'm still considering the Mugen extended.
jacob808 said:
I'll pay a hundred bucks to get at least 2-3 days on one charge. Anything to get rid of this miserable battery life that makes you feel anxiety when you're away from an outlet, especially if you use the G2x like I do which is on the internet constantly browsing and watching vids and playing vid games.
Although on another note, auto airplane mode does indeed make the phone somewhat viable and stops the drastic bleeding when the phone is not being used, and I also notice that under settings> accounts & sync> background data turned off also helps very much with the horrible battery drain when on standby.
Tmobile has sent me a replacement battery which I had to pay $10 shipping, so I might recieve it on the 3rd of June, I'll hold off on the Mugen 4500 mah and see how the replacement from tmobile goes and play around with the other settings I just mentioned. I just don't like the idea of switching out the batteries each time. Gonna put wear and tear on the battery cover and all, so even though I have an extra battery, I'm still considering the Mugen extended.
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I know exactly what you mean! That is the reason I was willing to spend $100+ on a battery because I didn't want to bother carrying extra batteries all the time or swapping them out or worry about charging each one..
I have one, lasts me 3+ days and don't have to swap anything.
Might not be ideal for most people, might be heavy but hey... it's perfect for me
Without a doubt, there is value in having a battery that can last 2 or 3 days. I've purchased large capacity batteries from Mugen and Seidio, and happily used them.
But, for the price paid for these batteries, I also expected to get what was advertised in terms of mAh rating. It irritates me that these companies feel that they can just print whatever inflated rating they want on these batteries and there is no consequence for them.
Heres what I've determined: High quality OEM batteries I've used in the last 4 years all have been around 1500mAh, as that seems to be the sweet spot in terms of size vs capacity for a phone manufacturer. Mugen & Seidio use cheaper cells, typically 1200mAh for the same physical dimensions as the OEM cell. From there, its simple math, 2 cells equals 2400mAh (not the 3000mAh stamped on the sticker. My guess, without even looking at a picture, is that the Mugen 4500mAh battery is a 3 cell unit with a real capacity of 3600mAh.
3600mAh is not a bad setup, I'd throw $100 for it. But I'd still be irritated.
What would be really nice is the manufacturer giving us the option of buying another cell, the stock oem battery with a replacement back that had a charge balance circuit and anything else it would need to be reliable. Known good cells, just an extra one.
My wife and I have both had t-mobile g2's for almost 2 years now. I had wanted to get addition batteries or replacement higher capacity batteries for a while. There were plenty of cheap batteries on ebay that claimed 1500 or 1600 mAh that would theoretically be an upgrade over a stock battery but it would be a relatively small upgrade and might not even really be an upgrade if they didn't actually live up to their advertised capacity so I had been procrastinating doing anything. Two things changed and I finally stopped procrastinating. First we decided we were going to keep our g2's for about another year. Second I noticed a number of Gold Business Batteries showing up on ebay at a relatively cheap price. They claimed a really high 2450mAh which I figured was not realistic but even if it fell well short of that it should still be a good upgrade. You can find them on ebay with a search for Desire Z gold battery. Can't post a link yet =)
Ordering and shipping was pretty much what you'd expect for cheap ebay purchases from china. The description was poor and communication with the seller was in broken English but I had no major issues. I just selected the cheapest seller at the time and I'm not even sure if that seller is still selling the batteries now. Shipping was predictably slow and packaging was minimal but everything arrived undamaged and is working fine.
The batteries seem to be a little tighter fit than the OEM batteries which seems to be a common complaint about these replacement batteries. I suspect that they would fit better if you removed the "gold" label as it seems to be somewhat stiff and thick for a label but I haven't tried that yet.
No surprise but the batteries don't seem to live up to their claimed capacity. I installed a battery monitor app and ran several full cycles on my battery and it came up with a measured capacity of ~1850mAh. I haven't tried to do the same on my wife's battery but it is enough of an improvement over our original OEM batteries that it is easily noticeable and she has commented on it and prefers the new battery. We got a charger with one of the batteries so she could easily swap batteries rather than charging the battery in the phone but she prefers to charge the gold battery and not swap back to the OEM battery unless she has to. My impression is the same. The new battery definitely lasts longer and was a nice improvement.
I no longer have the battery monitor installed (flashed to a CM9 Mod now) but after a couple months of use I subjectively haven't noticed a large drop in performance for the batteries.
Short review-
Good capacity cheap battery that doesn't require a replacement battery cover and I'd recommend them or by another in the future.
THX for your return man
I agree with OP's assessment. Definitely better than stock. I also notice that they get a lot less HOT than stock battery, which often felt like it would burn a hole in my pants. This battery produces no significant heat. Key word is "significant" since it is obviously impossible to produce NO heat. I suspect that the increased capacity compared to stock is due to much less energy lost as heat.
Just ordered a 2680mah one. Will report back when tested. With any luck it'll come before the weekend as my trip to London will be a good test.
Sent from my HTC Vision using xda premium
Any cheap backup batteries yet ? Ideally with wall charger.
I think the only one available right now is the stock Samsung batteries. You might be able to find a 50% off coupon. It comes with a battery charger. However I would wait for a company like Anker to release 3rd party backup batteries because I've found 3rd party batteries to have longer battery life than the stock batteries.
There is nothing. It's funny cause I had the G3 before this and there were a few preorders on Amazon already. I would think there would be more for the Note 4. What sucks is, Samsung had the spare battery with a charger for $20 but it sold out real quick. Who know's when that will come back in stock. I put my email down to know when they come back in stock, but I have done that before and never heard anything.
Made in China batteries
JeffATL said:
Any cheap backup batteries yet ? Ideally with wall charger.
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I can't post links yet because I'm a new user, but go to ebay and search for note 4 batteries. There is one from China that has a picture of three batteries and a charger.
I've used these batteries for my Note II and Note 3. They work great for about 9 months to a year. They still hold a charge after that time, but not as well as the stock battery. The stock battery will eventually crap out too; all batteries do. It's a great deal at $20 for three batteries and a charger. I also prefer to use this charger instead of the one that comes with the phone because it charges more slowly and will give you more charge cycles on your batteries. I would also disable fast charging unless you're desperate for juice because you will get fewer charge cycles out of your batteries before they start to suck.
JeffATL said:
Any cheap backup batteries yet ? Ideally with wall charger.
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I wouldn't use a cheap battery option for a £630 smartphone.
jah said:
I wouldn't use a cheap battery option for a £630 smartphone.
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Exactly this!
Batteries are not something people should cheap out on, for the sake of only £10 or so! Nearly all the cases posted around the internet of people's phones going up in smoke are due to cheap, third party batteries and/or chargers. Then there's the issue that most cheap third-party replacement batteries will have far less than the advertised capacity.
They're just a risk that is not worth it.
drainbamaged said:
I can't post links yet because I'm a new user, but go to ebay and search for note 4 batteries. There is one from China that has a picture of three batteries and a charger.
I've used these batteries for my Note II and Note 3. They work great for about 9 months to a year. They still hold a charge after that time, but not as well as the stock battery. The stock battery will eventually crap out too; all batteries do. It's a great deal at $20 for three batteries and a charger. I also prefer to use this charger instead of the one that comes with the phone because it charges more slowly and will give you more charge cycles on your batteries. I would also disable fast charging unless you're desperate for juice because you will get fewer charge cycles out of your batteries before they start to suck.
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Did you bought those from China? How is it? Anyone knows?
I love the made in China batteries.
I understand the concerns with using a cheap battery, but I've used the ones on ebay for years now without any problems or harm to my devices. The savings are not a mere 10 quid. You get three batteries for half the price of one. The made in China batteries definitely don't last as long as the stock battery, but I've never seen one blow up and I'm not afraid or concerned about it ruining my phone.
There is one legitimate drawback compared to the stock battery though. The NFC chip is embedded in the battery on the note 4 so if you use NFC a lot then clearly you should stick with a stock battery.
I hardly ever use NFC so I'll still use the made in China battery from ebay.
drainbamaged said:
I understand the concerns with using a cheap battery, but I've used the ones on ebay for years now without any problems or harm to my devices. The savings are not a mere 10 quid. You get three batteries for half the price of one. The made in China batteries definitely don't last as long as the stock battery, but I've never seen one blow up and I'm not afraid or concerned about it ruining my phone.
There is one legitimate drawback compared to the stock battery though. The NFC chip is embedded in the battery on the note 4 so if you use NFC a lot then clearly you should stick with a stock battery.
I hardly ever use NFC so I'll still use the made in China battery from ebay.
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I agree 100% with you. I am not worried about the battery blowing up. Its rare. And for my S3 and Epic prior to that they served their purpose. Backup for when you run out of power.
However, based on other thread if I can buy Samsung's for 50% off battery and charger ($20-$25) I would do it, just OOS.
Yeah, personally I have bought those cheap Chinese batteries off of Ebay, and I don't think they are worth it. I'm not worried about them ruining my phone, that is very unlikely. They just don't last long enough. I'm waiting for a reputable company to come out with a set with a charger. Like Anker. That usually runs about $30 bucks with 2 batteries and a charger compared to what $80 for the Samsung one. Even if they are .01% more likely to ruin my phone, that doesn't warrant spending an extra $50 like some people would lead you to believe.
Nate Rules said:
Yeah, personally I have bought those cheap Chinese batteries off of Ebay, and I don't think they are worth it. I'm not worried about them ruining my phone, that is very unlikely. They just don't last long enough. I'm waiting for a reputable company to come out with a set with a charger. Like Anker. That usually runs about $30 bucks with 2 batteries and a charger compared to what $80 for the Samsung one. Even if they are .01% more likely to ruin my phone, that doesn't warrant spending an extra $50 like some people would lead you to believe.
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Anker are very good, and not cheap as OP was talking about. I would use Anker but not a cheap option.
But Anker hasn't been to quick to get batteries out. I would suggest buying the Caseology batteries when they become available on Amazon. They always put up a preorder with a really good price but a ship date that is a month away. I always resist ordering it hoping that something will come sooner but they are usually the first and by the time they ship they are more expensive. And they get pretty good reviews.
FWIW, when I went to charge the batteries for our trade in phones, both stock batteries couldn't hold a charge at all.. BUT the cheap extended batteries I'd purchased from china had no issues at all.
(As a matter of fact, one of the stock batteries had developed that battery bulge we've heard about, and I couldn't even put the back on the phone with it in!)
Just buy the official spare and charge from Sammys site for 50% off.
posted via my Obsidian VZW Note 4
moralesd66 said:
Just buy the official spare and charge from Sammys site for 50% off.
posted via my Obsidian VZW Note 4
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They're currently out of stock, and on backorder.
They get em in fast. Check 2x daily.
posted via my Obsidian VZW Note 4
Odds are we'll see quick chargers paired with 2 batteries on ebay soon for $12 shipped or so, similar to other phone battery options.
Since that's less than 50% the cost of the Sammy's I'll just wait for a week or two for them.
there are several on eBay just be careful as some are just 3000 MAH and some are 5400 MAH so just choose wisely if you decided to buy from eBay but most offer 2/3 batteries for 15$ or so
moralesd66 said:
Just buy the official spare and charge from Sammys site for 50% off.
posted via my Obsidian VZW Note 4
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can you post which coupon code you used? because the ones i'm finding aren't valid even on the other current in stock accessories.
Keep an eye on this thread for coupon codes.
I bought 3 Anker batteries last year and have been rotating them but I'm looking for one more unit as I'm going to Nepal and having an extra fully charged battery is really handy. The Anker batteries seem to have settled at £13.99 on Amazon, the POlarcells are £19.99 but the Ravpower ones are only £10.99 and have good reviews. I'm not a fan of the "genuine Samsung" roulette and would be happy to pick one of these 3, but so far the Ravpower one looks the most likely.
I've had no issues with the official Samsung batteries for the Note 4. Thought I did, turns out it was a issue with the Marshmallow OS update that stops you from fully charging a new battery on it. I can still charge the battery that originally came with my device though.
woldranger said:
I bought 3 Anker batteries last year and have been rotating them but I'm looking for one more unit as I'm going to Nepal and having an extra fully charged battery is really handy. The Anker batteries seem to have settled at £13.99 on Amazon, the POlarcells are £19.99 but the Ravpower ones are only £10.99 and have good reviews. I'm not a fan of the "genuine Samsung" roulette and would be happy to pick one of these 3, but so far the Ravpower one looks the most likely.
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as I know there is no new original batteries for samsung note4 for sale at this moment. you should search for analogues. I know that Craftman batteries are good as original.
Well, after buying a Ravpower battery and going on my trip I'm very disappointed to say that they've all failed - one of the Anker units swelled as has the Ravpower one and the remaining 2 Anker ones randomly shut the phone down, and not just when they're running low either - it's happened when the battery is at 90% at times!
Anker have zero stock so issued refunds and I'm waiting to hear back from Ravpower but a quick look at their amazon.co.uk listing shows that they're out of stock here in the UK.
I'm in need of at least one fully functioning battery to test the phone (I've installed a different ROM to be sure it wasn't a software issue or rogue app). The only non generic one I can find is this - has anyone had any experience with them?
What about any other options - with such an active note 4 community, surely we're all in need of new batteries at some point - what do you use? (I don't want to spend £35-40 for a new Sammy unit on a phone that cost me £150!)
I'm hesitant to recommend this due to the aforementioned 'roulette', but I notice MyMemory have some 'new and improved one from the original manufacturer'. (can't post a link as a new poster)
I've ordered Samsung SD cards from MyMemory before and they've been fine, so they obviously have some distributor link to Samsung - not just random suppliers from Amazon. They also sell a small variety of Samsung accessories - ie they aren't a general mobile tat vendor.
However the bit that worries me is the 'new and improved' and 'The Note 4 battery has increased autonomy performance and fits perfectly in your smartphone.' - I haven't studied this, but I'm surprised that OEM batteries would change design after the phone's release.
They also have a 2-power battery - I've heard positive things about 2-power, but no experience myself.
Selanik said:
I'm hesitant to recommend this due to the aforementioned 'roulette', but I notice MyMemory have some 'new and improved one from the original manufacturer'. (can't post a link as a new poster)
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I've also bought decent stuff from Mymemory as well but firstly they're too cheap and secondly the QR code is missing the unique serial number that genuine batteries should have (and are on the ones that Samsung UK were selling a couple of months ago). The S/N printed on the battery is actually a batch number.
I've had a couple of Ankers fail and was refunded without hassle by Anker. I have 3 RAVPower and one has been in use since last September and has been 'fast charged' almost daily with, so far, no problems.
Last year I would have bought one or two, tested them for capacity and then challenged the supplier when they fell short but I'm pretty much fed up with testing them now plus I have a decent stock for my Note 4s,
I just replaced my original battery with a Max Baer high capacity battery at 3600mAh and it's just as bad as my old original battery. It's draining just as fast. I need to purchase another battery so anyone with experience with purchasing any batteries. If you can give me some advice on which one you bought and how well it did would be great cuz I would hate to buy another one after I buy this one, so any advice would be grateful. And theven MaxBeat high capacity battery was even rated higher than at 3600mAh and the original battery was 3200mAh or close to that number. so I would have thought that this max Baer battery would have done pretty good but it's as a right now not holding up to my standards I have to charge it like twice a day. Once again any suggestions would be greatly appreciate it thank you
Never heard of MaxBaer/MaxBeat or whatever it is - is it the same physical size as the original battery? If so, there is no way it can be 3600mAh. I wouldn't touch anything other than RavPower - as far as I'm aware there are no genuine Samsung ones left and Anker has stopped making them. RavPower: https://www.amazon.co.uk/dp/B072N5G4RB
I'm a ZeroLemon fan. Granted it makes the phone larger and people always comment on how large my phone is, though I have used phones as large as Red Bricks for work (Intermec) so it's small by comparison. I don't use the belt clip with it since I have cargo pockets.
Based on my personal experience, Stalion® Strength Note 4 Replacement Battery gives a great performance compared to the original for a normal (not extended battery) and sells at a very good price too. Also 4500mah Golden Battery though its performance is the same as a 3220mah Stalion but comes at a cheaper price.
I have got them from eBay.
I have tried Maxbear and powerbear, neither of which are any good in my experience. I also have two from anker and those were good but they're old now. I just this week bought an extended shenMZ 7500 mAh battery but that is not even lasting an entire day so I think it may have been sitting for a while. I think part of the problem may be that some of these batteries have been sitting in a warehouse for a long time unused. Somebody in this thread said that the RavPower batteries are still good. I also hear from another thread that the TQTHL extended 11800mah batteries are good as well. Has anybody bought a battery in the past few months that doesn't suck?