Fire HD8 run without battery - Fire HD 8 and HD 10 General

I have a gen 8 fire hd8 tablet that I have been using for a few years but the battery is dead on it now, lasts under 20 mins.
It is being powered by an in wall micro usb charger that was automated to charge it between 20-80% but because the screen is always on it flew through its charge cycles.
Leaving it on charge all the time is not safe (as my Dell laptop showed me this week where the battery swelled so much it burst the case open)
I opened it up hoping I can just disconnect the battery and power it via the charge port but unfortunately it boots to the Amazon logo and then dies.
Is it possible to maybe wire 5v from the USB cable directly to the +/- of the battery port and leave the battery out?
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sd_dracula said:
I have a gen 8 fire hd8 tablet that I have been using for a few years but the battery is dead on it now, lasts under 20 mins.
It is being powered by an in wall micro usb charger that was automated to charge it between 20-80% but because the screen is always on it flew through its charge cycles.
Leaving it on charge all the time is not safe (as my Dell laptop showed me this week where the battery swelled so much it burst the case open)
I opened it up hoping I can just disconnect the battery and power it via the charge port but unfortunately it boots to the Amazon logo and then dies.
Is it possible to maybe wire 5v from the USB cable directly to the +/- of the battery port and leave the battery out?
View attachment 5745091
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Hello. Yes You can power it thorugh a 5v phone charger but You have to take apart the electroic board of the battery and apply the 5v where the battery terminals were connected to its electronic board. However on my fire HD10 9th generation i encounter a problem: if there is a power outage, i can turn on the tablet afterwards, only if i manually disconnect and reconnect the connector You show in Your photo. i did not find a workarround this. maybe a button press combination would solve the issue but i did not figure it out yet.

Related

Car 12v-usb and cable bought on ebay wont charge.

Hello, ive bought these on ebay:
http://cgi.ebay.com/USB-CAR-CHARGER.../180497049900?pt=Other_MP3_Player_Accessories
http://cgi.ebay.com/Micro-USB-Data-...ARE-BB-Storm-/170525850383?pt=PDA_Accessories
Trying to use them to charge my phone in my car, but no go. When i connect the cable it asks me if i want to connect to kies, mass storage etc. I just press the back button, and phones tells me its charging, when in fact, its not, battery is actualy draining, and it gives me some weird msg about sd card. (In norwegian)
Any way to resolve this, or do i have to buy an original samsung charger?
did you try the USB cable on your computer?
does it charge when you plug it into the computer using the USB cable you got off ebay?
possibly the car charger is bad, if the USB cable works on your computer
I havent yet, i will do so and report back
The cable does not charge in the pc, and i can not mount my sd card on my pc with the cable, so, i guess its the cable then
Maybe this will do the trick: http://cgi.ebay.com/USB-Sync-Charge...895319?pt=PDA_Accessories&hash=item20b30c83d7
They say its for samsung i9000
Also! have you made sure the charger supplys the right amps, if you get one even with the right voltage if not the right amps you will still get battery drain! I had this issue when the gf's blackberry charger got swapped with my hero charger by accident, took me ages to realise why the battery was still draining when using co pilot on long car journeys!!
get this one instead
2000 mAh (2A) charger
http://www.dealextreme.com/details.dx/sku.25177
i'm using it, super good
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Get the HTC C200 charger.
I paid a lot for this phone so paying 15 euros dollars for a car charger makes sense
paying more for something that comes from the same manufacturing center (China) will not make it any better.
Thanks for all the good tips. Ill check those out
AllGamer said:
paying more for something that comes from the same manufacturing center (China) will not make it any better.
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I've used cheap ass car chargers and all they do is get hot and aren't very efficient. Have a HTC mini usb charger and it stays cool while charging, which means it isn't wasting any power...so to me...its worth paying extra

GSI Charging Dock $17

GSI Super Quality Desktop 3-In-1 Rapid Charger/Cradle/Data-Sync Docking Station For Sprint Samsung Epic 4G Cell Phone - Plus Slot For Extra Battery Charge - Powered By USB Or By Included AC Wall Adapter
http://www.amazon.com/GSI-Quality-D...sr_1_1?ie=UTF8&s=mobile&qid=1298676328&sr=8-1
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I purchased this product mainly because I was sick and tired of running down one battery and then having to switch without a way to charge the first one. So at the end of the day I would have two dead batteries. This can charge the battery in your phone as well as a spare. You can charge any size battery in the spare battery tray, which is really cool.
You can see from the image how it works. Because of the stupid design of the Epic4g charging port, it requires a cable to be plugged into the top of the phone. There are two led's, one red for the spare battery in the back and one blue for the phone. There are two ways to charge the phone, USB and a wall plug. The spare battery requires that the wall plug be used to charge. The phone will charge with either the wall plug or the USB cable.
The dock does not fit any extended case. The Epic naturally leans back in the slot, but it can be wiggled forward a good inch.
From the 10 minutes I have had and used this thing, I would absolutely recommend it. Please ask any questions you have.
does it come with the spare battery??
No. It comes with the dock and a wall charger.
I think you may have sold me on one. I have seen these before with an OEM battery but since I have Yoobao and my OEM battery already I don't need another. The price is right. thats for sure,
Yea, I figured it would be great for my needs. I dont need audio out or anything like that. Just needed something to charge the batteries while im not using them. Works flawlessly for that.
The blue charging LED on this thing is seriously the strongest LED I have seen. Huge blue circle on my ceiling.

My Pad won't on after fully charge

Hi all, my pad is fully charged and i shut it down, after a few hours i try to on it but it totally can't on at all and just show me the battery icon. Any one have this issue ? how to solve?
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Look like it run out of battery.. will you charge again and on it while connecting to the power supply..
Sent from Transformer TF101 (B60) via XDA Premium HD
farsight73 said:
Look like it run out of battery.. will you charge again and on it while connecting to the power supply..
Sent from Transformer TF101 (B60) via XDA Premium HD
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impossible run out of battery, i just fully charge and shut down, after a few hours turn in on, it already cannot on and show me battery icon, now i try use power plug to charge it also show me battery icon and cannot on also
Sounds like your charging adapter, the wall part, is broken. This happend to me a couple weeks ago. This may sound weird but try this to see if that is the problem. get a ziplog bag. Take apart the two peices of the charging adapter, put it in the ziplog bag, and put it in the freeezer for a few minutes. Then take it out and plug it back in, and see if your tablet will charge. If not i think something is wrong with your tablet.
Geezus_Christ said:
Sounds like your charging adapter, the wall part, is broken. This happend to me a couple weeks ago. This may sound weird but try this to see if that is the problem. get a ziplog bag. Take apart the two peices of the charging adapter, put it in the ziplog bag, and put it in the freeezer for a few minutes. Then take it out and plug it back in, and see if your tablet will charge. If not i think something is wrong with your tablet.
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charging adapter? i already say my tablet is fully charge , then i shut it down, after a few hours later tyr turn it on, it already cannot on. Btw, my charging adapter still can charge to my docking. Thanks

[Q] any one try this 3830MAH battery for N5

its not a 2300 mah battery ..it is 3830mah for N5...
see this link in first post
plz check and reply .....
Did you mean this one?
http://www.aliexpress.com/item/Bran...TERY-FOR-LG-nexus-5-D821-D820/1778925662.html
This is the first time I've heard about this and it pretty much looks like a cheap chinese product.. Might even damage the Nexus 5.
In my experience...
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I wouldn't buy it. If you need more battery, check out Anker portable chargers. I haven't had a problem with mine after a year.
Sent from my Nexus 5 using XDA Free mobile app
milkytron said:
I wouldn't buy it. If you need more battery, check out Anker portable chargers. I haven't had a problem with mine after a year.
Sent from my Nexus 5 using XDA Free mobile app
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This one is very slim you can have it plugged in pocket with the phone.
Note that when using a battery to charge a battery you get two lots of 20% loss from the electronics in the external and internal so 5000mah becomes in reality about 3000mah, so you're going to get max time if you connect the external battery during times of peak power use of the phone, such as when sat using the phone so you get only one lot of 20% loss so 5000mah becomes more like 4000mah not 3000mah so if you plugged it when using your phone at times of when plugging a battery is not an issue then you're nearly tripling your overall times.
Also note that not external batteries are the same, a key one is if they are 1A or 1.5A or 2A input, the 1A input take a long time, usually overnight, to charge. The above one is 2A.
If I'm travelling I pair with a dual socket 2x2A brick like this one. So from any time I'm sat next to a power socket I'm making best use of the time charging 2A to the slim battery and 2A to the phone. That means you are not increasing your charging time at same time as tripling your battery time.

Fast Charging (QC 2.0) with non-oem batteries?

Has anyone tried using a non-OEM battery with a Quick Charge 2.0 charger? I've had a TrendON battery as a spare for a while but just decided to swap it with the OEM Samsung battery. After it dropped to roughly 60% I put the phone on an Anker QC 2.0 charger and watched the realtime power with a Portapow Premium DC Multimeter. It was initially drawing 15 watts (9V * 1.67A) and the charging light was green on the charger, indicating fast charging.
After a few minutes I took another look and while the voltage was still at 9V, the current was near zero. The phone was taking in milliwatts of power. I actually let it sit for a few more minutes and then restarted the phone thinking something was off. After restarting I let it sit a few more minutes and then confirmed that the battery percentage wasn't rising. It was stuck around 77%.
I took it off the fast charger and then put it on a "standard" 2A Anker charger and then the battery percentage continued to climb regularly. Really odd.
Anyways I have a graph showing the entire behavior. The green line is battery percentage and the orange line is charge rate as a delta of battery % per hour.
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The fast charger has worked flawlessly in the past when I had the OEM battery installed. I'm guessing that if the phone was drawing 0 watts it had shut down the charging of the battery for one reason or another. Thoughts?
I have been using oem charger with my 2 anker batteries without any issues for almost over a month.
Hmm... just took a peak at my phone and it's actually stalled out at a reported 80% of battery capacity, and this is not on a QC 2.0 charger. This may be a battery issue as I believe battery percentages are calculated relative to battery voltage. I'll reach out to the manufacturer, TrendON, but not holding my breathe as it's been a few months since I purchased it.

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