Hello,
It's been some time and some devices since I was wannted to try this dirty hack. My good old GT-P6800 has successfully avoided this fate, my SM-T705 has not.
So, the theory is like that. You can connect virtually any Li-Ion batteries by attaching plus to plus and minus to minus and achieving and thus capacities will be summed.
So, I purchased a battery from aliexpress.com an attached it to original battery wires red to red, black to black.
Then I had to cut a rectangle hole in tablet's back housing cover to let it close with that battery onboard. To protect battery (li-ion battery has to be protected) I use TPU cover.
It looks like that
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And the actual effect
Now, from original 6-7 hours I got 15-18 hours on battery, while time to charge to top is now somewhere about 7-7.5 hours.
Need to mention, that original capacity calculation algorithm based on MAX17050 chip is adapted for original battery (obviously), so has to be overridden with custom software patch to kernel.
I agree, this mod isn't aimed to mass user, but the experience itself I find really interesting.
18hours screen on time? This looks really cool. But hey now you got and extra 8-9 hours of spare battery
-DUHA
I would say extra 10-12 hours.
wow that is one hard core mod! How long does it take to charge it to full?
Oh, totally forgot to mention, about 7 hours.
Hi, i know it's a 5 year post. What happended to green wires ? and i think the battery you used had just black and red cables?
Hi, I know I am necroposting and I'm sorry for that. But how do I inform the kernel of the new capacity?
knosso said:
Hi, I know I am necroposting and I'm sorry for that. But how do I inform the kernel of the new capacity?
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I think he doesn't. It should work fine without any extra settings.
Related
Can someone please suggest a decent portable charger that I can use to keep my HD2 running for 5 days without mains power?
At the moment I charge it once a day.
Either AA Powered or with a large internal battery
Thanks
Hi,
I've got this one:
dealextreme.com/details.dx/sku.18883
it has an adaptor for micro-usb. You can use itself for charging the lithium battery.
and also, when I need more time I carry more batteries:
dealextreme.com/details.dx/sku.26249
http://www.dealextreme.com/details.dx/sku.29749
3 full recharges portable charger
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https://powertraveller.com/iwantsome/primatepower/000239/
Not quite as powerfull as some of the previous suggestion but recharges my HD2 2 and a bit times if Im not using it while on charge.
The tips and chargers are all cross compatible with their other products which I also use (powergorilla for my netbook) and its small enough to carry around!
I'll suggest an i-walk U20 5400mAh, it charges the HD2 about 4 1/2 times. perfect for long days out or when going camping etc. also has a powerful torch.
http://gadgetmix.com/index/u2o-iwalk-5400-universal-emergency-battery-charger-review/
Mine cost about £44, but it's totally worth it. I just don't trust those chargers running on 2xAA batteries
I bought this one plus a couple of AA size 2200mAh rechargeable battery, can be used for 4-5 days ouside
sbirsen said:
I'll suggest an i-walk U20 5400mAh, it charges the HD2 about 4 1/2 times. perfect for long days out or when going camping etc. also has a powerful torch.
http://gadgetmix.com/index/u2o-iwalk-5400-universal-emergency-battery-charger-review/
Mine cost about £44, but it's totally worth it. I just don't trust those chargers running on 2xAA batteries
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hmmmm i think this one really rules. thinking of getting one instead of the extended battery. so i can keep the good design as i dont need the power every day ...
I'm using a powergorilla for charging my 2 phones. a HD2 and a SE W800i
it lasts me 2 weeks
it is a big powerpack but also does the laptop more then once easily when needed. they have also a half size one the minigorilla
just google it.
Hi
Just Pictures for now will try to post usage sometimes later
Anyone else got these? feedback would be appreciated
UK EABY
HIGH EXTENDED 3500mAH Battery for HTC HD 7 HD7 + Cover
Ordered from the Above link
As you can see it spoils the beauty of the HD7 but I guess its worth it only if you plan to use your phone for a long day trip or something if you are taking photos.
Its China made and looks like hand made, bit rough if you know what I mean, still wondering whether I should use it or not, as I don't really use my HD7 that much
PICTURES
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Holy cow! that looks ugly hehe!
good lord thats immense! what sort of life do you get out of that thing?
Trust me.
I Just put it in and took it out straight away. It made my sexy phone look horrendous.
I rather have low battery life then carry that around so that battery is lying in the corner unless someone wants to buy it off
That is ugly as hell.
But I can see it being useful if you go hiking or biking a lot; you would get a lot of GPS-mapping done with that battery and the phone itself could just be attached to your bike or your bag. You wouldn't want it in your pocket though.
bought that same battery from a vendor here in the US... The phone doesn't seem to "recognize" it's larger capacity... all system info/system view apps still show the batt as the 1230 maH... once the battery indicator goes low, and the orange LED starts flashing and the low battery warning pops up, I can shut down the phone, pull and re-insert the battery, power it back on and it shows about 50% battery again for a couple hours...
I have it.
I have this battery, i can stay up for 4 days without charging it, but when it goes down to drain level and orange light comes up i have to take the battery off and start phone again to see the battery's rest of the capacity left. I use Deepshining V2.0 and i use the phone with wifi once a day to pick up new apps but i don't talk much. Overall i am OK with it despite the phone doesn't see full capacity
Ugly son of a b'tch.
(This is separate from the Empty Battery, Can't Charge issue)
Sometimes when I place the Gear into the cradle (in correct orientation) for a charge, nothing will happen. The watch is on, the battery is not fully depleted.
It's very frustrating.
Anyone have any thoughts?
I had a similar issue recently. I didn't think it was charging, but after 15 minutes on the cradle it had gained significant battery level. I rebooted it afterwards and it acted like normal when charging.
This has happened to me a few times recently. Opening and closing the cradle seems to fix it. Sometimes a few tries is required.
I've noticed the gold on the contacts on the watch are wearing out and the contacts are starting to get dents in them. So I think the cradle is not making a good connection all the time. Seems like the contact material is too soft and cheap...
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Wow, are those just dirt or actual dents in the metal?
Mine looks brand new, and still doesn't charge.
Dents where the gold coating has worn away. I've had it since October last year and have charged it every day, sometimes twice a day.
LaDamian said:
I had a similar issue recently. I didn't think it was charging, but after 15 minutes on the cradle it had gained significant battery level. I rebooted it afterwards and it acted like normal when charging.
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That's very interesting, so you're saying that is actually charging even though the Android OS doesn't indicate with the charging icon.
klau1 said:
That's very interesting, so you're saying that is actually charging even though the Android OS doesn't indicate with the charging icon.
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I'm saying it could be the case. I felt mine getting warm and noticed a significant jump in battery power in a short time. If it is charging, it won't take long to prove it.
My device is not very old. It's about 1 year now and battery isn't as good as it used to be. When I got it after school I had minimum 50% no matter what I've been doing and atm it's 24% which is disturbing.
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Any tips/ideas what to do?
olokos said:
My device is not very old. It's about 1 year now and battery isn't as good as it used to be. When I got it after school I had minimum 50% no matter what I've been doing and atm it's 24% which is disturbing.
Any tips/ideas what to do?
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Check for battery health in 7378423 to see if it had any wear out in battery capacity. Mine is 31460 (1+ year, when buy it is 32000, Sony is always add more to make the battery last longer )
And check for any apps that run out of battery, malware too (There are some Android malware which mine Bitcoin/Litecoin and make phone hot and run out of battery)
Also check your kernel setting or reflash ROM if nessesary.......
Mine is 1,5-2 day battery life with typical behavior.......
Well, my battery says 31440 when at 86% of charge. I haven't got many wake locks in betterbatterystats either so I'm not sure what could be the cause. I'm on stock kernel. Thanks for the heads up on that mining malware. I had no idea it went over to mobile devices. My phone actually gets a bit hot after some regular usage, but nothing out of ordinary I guess. I did lots of mods to the stock rom on my own so I'm not that keen on reflashing. I'd rather find out what could be the cause of that poor battery life and fix it by myself.
Any other suggestions and things to try?
You can reinstall your Firmware, and see if the battery life would be better. And my Wakelocks have i solved with the App DS Battery Saver.
Strangely enogh my battery was at 2880 after only 140 charge cycles.
Then by accidient it deep discharged (problems with not charging, hard reset etc. until it was fully 100% dead) and now is back at 3130 with only the first charge cycle counted as 1.
Not the case here since your's has a good number, but I wanted to add this information.
Hi,
Is this normal battery? No motion sense/90 htz/location etc.
All background activity halted.
Strange...
Thanks in advance
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@Openfire72
Yes, after 185 charge cycles your battery's capacity is (permanently) down to 90% of the original battery capacity. That is if the original capacity was only 3,700 mAh. Most P4XL batteries start out higher than that, so your capacity loss is probably greater. My replacement P4XL is still at 106% of the "original" capacity... which is basically the Google specified capacity. Since you use AB, you know you should try to NOT charge the battery much over ~80% and you will save a TON of battery wear cycles. I generally start charging around 20-25% and run it up to 80 or 85 (+60%). The battery wear cycle for this is about 0.22. In your screenshot, one of your charge sessions was from 57-100% costing you a 0.91 wear cycles. That means I can charge my battery 4 times (0.88) and still have less battery wear than your one charge (0.91). If you want to retain your remaining battery capacity as long as possible, try keeping to this 20-80 regimen as much as you can.
EDIT: Scroll down the health tab and post a screen of your scatter chart which will show you graphically your charging habits over time.
EDIT2: In the attached screenshot look at the battery wear cycles vs "added charge" On the bottom charge cycle, I added 67% charge at a penalty of only 0.22 battery wear cycle.
Hi, and thanks for your help on this as it's greatly appreciated. The phone gets paid off next month and after two years there's nothing I like apart from this device. I'll prob get a new battery!!! Great phones despite the small battery....I wasn't bothered about the ultrawide as I don't use one, but if they'd just stuck a bigger battery in....if!