Database Develop

Dealextreme have just added a 1300mAh HD2 battery to their stock

For anyone who's interested here's the product description: 3.7V 1300mAh Rechargeable Li-Ion Battery for HTC HD2
Currently $4.68 delivered worldwide.
Does this appear to look like any others from the packaging? Anyone going to order?
Edit: Ordered & received, all looks good. Will update again in a few days when I'm done testing.

Looks like the ecell battery which is no better than the stock battery. Seems there are a few batteries released under different branding but all with similar performance.

I received my battery a couple of days ago and am now charging it for the first time. I'll post here once I've charged/discharged about 3 times and have a good idea of how it compares to the original.
Some notes -
The battery fits the HD2 perfectly, it's not too tight or loose as some people have reported with third party batteries.
Sticker on the battery claims 1300mAh
Will update soon!

An update...
I'm charging for the first time, switched the phone on. My HD2's LEDs have flashing Orange then Green as described in this thread: http://forum.xda-developers.com/showthread.php?t=650507 (no the box to not charge when on isn't checked!)
When the phone is OFF it appears to charge normally (full orange).
This might be a faulty battery, can anyone who's ordered this from DX post about how their battery is performing?
Perhaps this is how 'unconditioned' batteries perform the first time they're charged?

I have 2 similar looking ones I got from ebay. They work fine, BUT for charging... the problem is the temp sensor being badly calibrated, and pretty much anytime the device is warmer than ambient temp (~25-30°C) the flashing LED problem comes up.
Put the phone in standby, screen down (for cooling), and don't charge via USB (when connected to USB the phone stays on i.e. heats up) but with the original charger.

I always charge my batteries (have FOUR of them, original + 3 chinese identical to the original, both by the looks and performance) and always charge them via the external charger. Faster, cooler, more pratical (since you can go away with the phone while the other battery is filling up), so never had any problem, ever

I just ordered two of them the other day. I can't wait until they arrive... The HD2's battery life is atrocious!

I just picked up this exact battery from dealextreme and have been using it for a couple days now and i'm having the exact same symptoms as described above....
It charged up alright the first couple days but it doesn't seem to charge now and the led flashes orange/green. It would appear to be heat related because if i let it cool a little it will charge... for a little bit anyway...
Is there an actual solution for this or are the batteries just complete garbage....

Just get the original HTC battery. All these extra mAh claims are BS. Unless of course you go with the larger extended battery.

ephestione said:
I always charge my batteries (have FOUR of them, original + 3 chinese identical to the original, both by the looks and performance) and always charge them via the external charger. Faster, cooler, more pratical (since you can go away with the phone while the other battery is filling up), so never had any problem, ever
Click to expand...
Click to collapse
Yep. I have a total of 5 batteries and I charge 4 externally before I go on trips.
After initial charging, they all perform just fine. Find a nice stable Android rom and monitor your power usage there.

http://www.expansys-usa.com/htc-hd2-extended-media-battery-battery-cover-bp-e400-retail-195058/
Try that one 2300 mAh, works fine with windows but with sd android builds only few kernels have the support for that (hastarin), and with NAND andoids havent found any that supports it
It looks awful but it feels very good in hand...

Not thread hijack but here is some data you might have for use and you can stack it against it so other users who is thinking of buying can make good decisions. Now how does this stack up against Mugen Power 1300 mAh stock?
HyperNode said:
This SS is of Mugen Power 1300 mAh right after fully charged.
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Click to expand...
Click to collapse
HyperNode said:
Okay so this morning after I replaced the Mugen battery with stock battery I fully charged it and took this screenshot.
From the looks of it both seems same and at this point I am totally convinced that the stock battery is better. This image on top I uploaded from work on my HD2 as I'm typing from there and my current charge is 83% at 5:53PM when I am submitting this post. So you tell me which is better.
Click to expand...
Click to collapse
HyperNode said:
Now keep in mind the stock battery is 1230 mAh and the Mugen power stock size battery was 1300 mAh. So the only difference here was 70+ extra mAh yet after extended test and usage I can respectfully say I got 3-4hours extra with Mugen than the stock size which is alot when you compare the batteries and its only 70 mAh extra which is nothing.
Now keep in mind from those SS the TBattery 0.60 does not verify the actual full mAh as its preset to the max of stock battery which is bug in the program. At the beginning to me it did seem the stock battery was superior as time went on and after many full discharges, Mugen power battery come on top.
Click to expand...
Click to collapse

10000mAh external battery

Did anyone ever see this?
www.amazon.com/New-Trent-Extreme-Pack-IMP1000-Blackberry/dp/B003ZBZ64Q
10000mAh? Powerful!

Haven't seen that one but I do have the Proporta USB Turbocharger 3400. It works great and supplies about a days worth of power - highly recommended.

Hmm...
'Ultra reliable Lithium-Ion battery, 600% iPhone 4 Battery life, 100% 3G iPad battery life'
so the iPad has a battery of 11000mA????? Don't think so.

I think these kinds of things are great if you're camping or traveling. The 3 reviews on Amazon would make me cautious until it's had more feedback.
One tends to learn as much from negative feedback as from positive feedback (especially since there are companies that get paid to give positive feedback).
Edit: Just found this at half the price:
buy ((REMOVE THIS PART)) .com/prod/energizer-8000mah-universal-battery-pack-w-ipad-tip/q/loc/111/216795526.html

I just got the device today, and as I will be out all night, I will make a field test report in the morning to report on it's performance.
First review: Barely pocket sized and heavy. A good indication
Capacity listed on back: 11,100mAh, 3.7V (41Wh)
Output: 5V, 1A
Input (charging): 5V, 2A

For 1/3rd the price, I just cobbled up a 2-D cell battery holder powered with 10,000 mAH Low-Discharge NiMH and wired them up to a circuit board that I puleld from one of those Energizer Pocket Chargers (the things they normall bundle with 2 AA Lithium Cells).
I bolted a belt clip on it, and I'm good to go-and in a pinch I can always slap in a pair of Alkaline D cells.

wazmo said:
For 1/3rd the price, I just cobbled up a 2-D cell battery holder powered with 10,000 mAH Low-Discharge NiMH and wired them up to a circuit board that I puleld from one of those Energizer Pocket Chargers (the things they normall bundle with 2 AA Lithium Cells).
I bolted a belt clip on it, and I'm good to go-and in a pinch I can always slap in a pair of Alkaline D cells.
Click to expand...
Click to collapse
I never thought of that.
But an update on this product. Turns out, you can't leave it plugged in to the wall all the time. Mine died because of that. I sent it back and am awaiting a new one.
But the performance is really good on this thing. This thing sat through 12 hours of continuous use and wasn't near dead when I was done.

I use the PowerTraveller device which is pretty good. It holds almost twice the charge of the phone, and has been a lifesaver twice in my month-long owenership. The only flaw is that it does not seem to turn off if you unplug the phone = discharges if you forget.
That said, for £34.99, it is useful on the go.
http://www.amazon.com/Powertraveller-PowerMonkey-Portable-Charger-iPhones/dp/B0043X9IE4/ref=sr_1_7?ie=UTF8&s=electronics&qid=1288026378&sr=1-7

One of the reasons I avoid those LiOn packs is that when the battery packs die you're sorta screwed in trying to find replacement cells-and based on my experience, I've yet to see LiOn cells last more than 300+ charge/discharge cycles. That's why I still have as my primary Bluetooth headset a Motorola H300 that takes AAA cells. Sure it may not look sexy-but I don't have to pitch it when the cells crap out.

WOW! this is brilliant! could you please post a photo (kind of manual-type). What is the brand of your 2Ds? Aslo, could you please provide some review/technical feedback on how it behaves? How long it charges? how many full cyclescan it go for?
wazmo said:
For 1/3rd the price, I just cobbled up a 2-D cell battery holder powered with 10,000 mAH Low-Discharge NiMH and wired them up to a circuit board that I puleld from one of those Energizer Pocket Chargers (the things they normall bundle with 2 AA Lithium Cells).
I bolted a belt clip on it, and I'm good to go-and in a pinch I can always slap in a pair of Alkaline D cells.
Click to expand...
Click to collapse

I use AccuPower AccuEvolution low-discharge NiMH D cells:
http://www.amazon.com/AccuEvolution-Self-Discharge-NiMH-Cells/dp/B00124BN4U
The circuit board I ripped from the Energizer Energi-to-Go cell phone charger:
http://www.amazon.com/Energizer-Ene...7?s=electronics&ie=UTF8&qid=1288832498&sr=1-7
Here's what the beast looks like cobbled together:
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The D-cell holder has a belt-clip bolted on to it. The circuit board from the energi-to-go is hot-glued on to the top of the battery holder. When the phone is plugged into the pack, the blue LED blinks through the hot-glue.
I expect that I'll get hundreds of cycles from the thing.
I have a smaller lash-up using two sets of AA cells wired in parallel. With the NiMH AA I get about 5-10 charge cycles using Sanyo eneloop AA's depending on the discharge of the phone.

thanks again
wazmo said:
I use AccuPower AccuEvolution low-discharge NiMH D cells:
http://www.amazon.com/AccuEvolution-Self-Discharge-NiMH-Cells/dp/B00124BN4U
The circuit board I ripped from the Energizer Energi-to-Go cell phone charger:
http://www.amazon.com/Energizer-Ene...7?s=electronics&ie=UTF8&qid=1288832498&sr=1-7
Here's what the beast looks like cobbled together:
The D-cell holder has a belt-clip bolted on to it. The circuit board from the energi-to-go is hot-glued on to the top of the battery holder. When the phone is plugged into the pack, the blue LED blinks through the hot-glue.
I expect that I'll get hundreds of cycles from the thing.
I have a smaller lash-up using two sets of AA cells wired in parallel. With the NiMH AA I get about 5-10 charge cycles using Sanyo eneloop AA's depending on the discharge of the phone.
Click to expand...
Click to collapse
Thanks again for detailed explanation! I will try to get the "ingredients" and try to assemble on my own.
I had an urge of buying Energizer Energi-To-Go before, but then i learned that it cannot be used with rechargeables. Is it true?
Correct me if I am wrong with following "naive" calculations - 2 D cells 10000 mAh, 1.2 V each as source and 1280 mAh, 3.7 V HD2 battery as a subject. Assuming the conversion efficiency is somewhere around 80% one gets 0.8x(2x10000x1.2)/(1280x3.7) = 4 for number of full charges of dead empty HD2.
Is it what you experience? (actually that is what i meant under query for number of cycles)

Having ordered from newtrent before, I can say the IMP products work well. I bought one for a collegue, she got 3 full charges off her IMP500 before having to recharge the battery.
They're decent products, well packaged and they do give a decent battery life.

lusjash said:
Thanks again for detailed explanation! I will try to get the "ingredients" and try to assemble on my own.
I had an urge of buying Energizer Energi-To-Go before, but then i learned that it cannot be used with rechargeables. Is it true?
Correct me if I am wrong with following "naive" calculations - 2 D cells 10000 mAh, 1.2 V each as source and 1280 mAh, 3.7 V HD2 battery as a subject. Assuming the conversion efficiency is somewhere around 80% one gets 0.8x(2x10000x1.2)/(1280x3.7) = 4 for number of full charges of dead empty HD2.
Is it what you experience? (actually that is what i meant under query for number of cycles)
Click to expand...
Click to collapse
Older NiMHs cells probably don't have the same load characteristics as the low-discharge cells do-I have used low-discharge cells with the stock energi-to-go and can usually get 2 cycles depending on the state of charge of the phone. However, my Nokia N900 does need a higher input voltage to kick the circuit over-in that case I slap one alkaline and the NiMH and all is well.
I usually don't let the phone get to a complete dead state-that tends to make charging much more challenging. What I have done is I created a cutout in my case where I can connect the headphones and power.

220.000 mAh ext. Battery
More Power ... HAR - HAR - HAR:

karendar said:
Having ordered from newtrent before, I can say the IMP products work well. I bought one for a collegue, she got 3 full charges off her IMP500 before having to recharge the battery.
They're decent products, well packaged and they do give a decent battery life.
Click to expand...
Click to collapse
Try the IMP100/880E. over 24 hours and it's still not dead
hellraiser-rh said:
More Power ... HAR - HAR - HAR:
View attachment 434354
Click to expand...
Click to collapse
That's called **** bricks power

Ya mean Varta actually still lives? Last time I saw a Varta-manufactured cell it was at an IKEA store-now even they went with Chinese-manufactured cells.
Too bad-they could have gone to an American-made battery-Panasonic!

wazmo said:
Ya mean Varta actually still lives? Last time I saw a Varta-manufactured cell it was at an IKEA store-now even they went with Chinese-manufactured cells.
Too bad-they could have gone to an American-made battery-Panasonic!
Click to expand...
Click to collapse
You're damn right, Varta is down the drain.
But it was the firts pic i found
This will also be needed for extreme ext. Power Supply:

This one is the best choice you can make

romskii said:
This one is the best choice you can make
Click to expand...
Click to collapse
Now if we can figure out how to generate power from the wheel: Lucy 4.0 has spun her wheel 360+ km in 430 days per www.hamstertracker.com...

Charging N7 with Phone charger

Hey everyone, I just want to check something,
I left my N7 stock charger at my mates house and he's on holiday for a couple of weeks so I'm using my HTC phone charger to charge my N7, it has the same connection and I'm using my original charging cable anyway. It seems to be charging my unit fine, but I just want to check I'm not gonna roast my battery or anything
The output of the charger is 5V / 1A
Thanks.

It'll probably charge your N7 really slow as the oem charger is 2 A. I personally wouldn't use it because it'll charge slowly, which I would think could cause problems down the road.
Sent from my Nexus 7 using xda premium

I have used a bunch of different chargers all from either another cellphone or Bluetooth headset, they all work, they charge it slow but they all work, yes I have tried both AC and car charger, I have not tried an iCrap charger but will soon,
the battery was completely dead I plugged it in to a Motorola Bluetooth headset charger left it went to sleep in the morning 6 hours later it was only at 46% charged, took it to the car drove to work plugged in to a Nokia car charger and in 45 minutes drive charged it from 46% to 78% got to work plugged it in to a Samsung phone charger and let it finish charging, the Nexus is fine, yes they all work just a bit slow. I dont do this all the time just when I forget the charger at home or something, not sure if it harms the battery either but I imagine not.

Worst case it may overheat your charger since it isn't 2A-rated.
It depends on if the charger has internal current limiting or just heats up when overloaded.

This charger with me a long time, it really is very durable and I fell a few times or you can use, the most important is that it is not very expensive
http://www.elewarehouse.com/Scud-Line-Charge-FOR-Samsung-Galaxy-SL-33424.htm#.UDGVNfbiZqU
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I actually like to use my slow chargers for over night charging. Seems to hold a charge longer then a fast charge.
Sent from my Nexus 7 using xda premium

i killed a charger like that....saw sparks ,charger start to melt
use provided charger.better be safe than sorry.

dirtyhamster73 said:
It'll probably charge your N7 really slow as the oem charger is 2 A. I personally wouldn't use it because it'll charge slowly, which I would think could cause problems down the road.
Sent from my Nexus 7 using xda premium
Click to expand...
Click to collapse
slow charge is better in the long term for the battery iirc.

blahblahyoutoo said:
slow charge is better in the long term for the battery iirc.
Click to expand...
Click to collapse
That doesn't make sense to me....But that's fine. I rather not trust it and stick with the oem. I've read stories about chargers over heating because there wasn't enough juice coming through. All set with that.

dirtyhamster73 said:
That doesn't make sense to me....But that's fine. I rather not trust it and stick with the oem. I've read stories about chargers over heating because there wasn't enough juice coming through. All set with that.
Click to expand...
Click to collapse
Charger overheating and charging speed are 2 different thing. Charging it slower is better for the battery. Charger overheating is just means the charger is either **** or not designed correctly for the task...
FYI, charging it up to 80-90% of the capacity (rather than all the way to 100%) also help the battery in the long run. I wish i know how to configure when the nexus stops the charging when it reach certain %.

codenamezero said:
Charger overheating and charging speed are 2 different thing. Charging it slower is better for the battery. Charger overheating is just means the charger is either **** or not designed correctly for the task...
FYI, charging it up to 80-90% of the capacity (rather than all the way to 100%) also help the battery in the long run. I wish i know how to configure when the nexus stops the charging when it reach certain %.
Click to expand...
Click to collapse
I know the difference between charger overheating and charging speed. Point is, imo, I'm giving my opinion that I don't think charging the N7 with something that isn't 2A is not good. Whether my opinions are right or wrong doesn'tmatter...I'm just saying I wouldn't charge the N7 or any device with anything other than the oem charger. When I bought my first android, the G1, I charged it for a good month at work with a generic charger that didn't have the same specs as the oem and my battery went to crap.

Smallest QC3.0 Battery Bank Over 6000 Mah?

What are some of the best and smallest QC 3.0 battery packs over 6000 mah?

krazieboy said:
What are some of the best and smallest QC 3.0 battery packs over 6000 mah?
Click to expand...
Click to collapse
There's this new site called ash an Amazon, you should check it out

..... sooo helpful.. OMG i didn't know! .... ass.

I've been really happy with this one, which is QC 3.0 and 10,000mAh:
https://smile.amazon.com/gp/product/B01JIYWUBA
It's a pretty compact size, not much larger than a credit card and maybe about as tall as a quarter?
The ONLY downside is that you can't quickcharge the unit itself, so it takes forever to charge it up, but once you do, it'll quickcharge your phone roughly 3 times.

NickSaul said:
I've been really happy with this one, which is QC 3.0 and 10,000mAh:
https://smile.amazon.com/gp/product/B01JIYWUBA
It's a pretty compact size, not much larger than a credit card and maybe about as tall as a quarter?
The ONLY downside is that you can't quickcharge the unit itself, so it takes forever to charge it up, but once you do, it'll quickcharge your phone roughly 3 times.
Click to expand...
Click to collapse
the size looks pretty good actually. do u know if they had a model that does away from the micro usb. prefer to use usb c to charge power bank.

krazieboy said:
the size looks pretty good actually. do u know if they had a model that does away from the micro usb. prefer to use usb c to charge power bank.
Click to expand...
Click to collapse
Not that I know of, maybe there's an updated version.

I'm used to phones with removable batteries, and now that i'm getting the note 8.. been a bit worried about lack of power. lol. so really do want a small portable one that's qc. thanks
anyone can recommend any other ones?

krazieboy said:
What are some of the best and smallest QC 3.0 battery packs over 6000 mah?
Click to expand...
Click to collapse
This is a 1k mah smaller, but it's a lipstick size. What's good about this, is that you can replace the battery yourself.
$15.46 FREE shipping.
https://www.aliexpress.com/item/AUK...5.html?spm=2114.10010108.1000015.1.5rliOR&s=p
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PapaWangsta said:
This is a 1k mah smaller, but it's a lipstick size. What's good about this, is that you can replace the battery yourself.
$15.46 FREE shipping.
https://www.aliexpress.com/item/AUK...5.html?spm=2114.10010108.1000015.1.5rliOR&s=p
Click to expand...
Click to collapse
I actually owned that one. it was never able to give me a full charge on my V20.

krazieboy said:
I actually owned that one. it was never able to give me a full charge on my V20.
Click to expand...
Click to collapse
Hmmmm, strange. V20 is 3200mah. It should fully charged no problem. I'm using it on my note 7 and s8+ and charges fully and with little power left.

NickSaul said:
I've been really happy with this one, which is QC 3.0 and 10,000mAh:
https://smile.amazon.com/gp/product/B01JIYWUBA
It's a pretty compact size, not much larger than a credit card and maybe about as tall as a quarter?
The ONLY downside is that you can't quickcharge the unit itself, so it takes forever to charge it up, but once you do, it'll quickcharge your phone roughly 3 times.
Click to expand...
Click to collapse
I also have had good experiences with this product. This is the smallest 10k mAh product and has a size that fits in a shirt pocket. It is a bit thick but light enough. It can fill my S7 edge more than 1x when full charged, but I normally charge it after 1x charge. LOL, thought the non QC charging of the battery pack was a defect on mine. That is a pain since some of the other products I have used work with quick charge on charging. Hope they fix it with the next revision.

This is super slim
10,050 mAH and very slim
If it doesn't load here's a link: https://www.youtube.com/watch?v=76VFMwI3x0c&t=124s

thanks! looks like i'm prolly gonna get one of those!

Chargers and Charging speed

I did a few quick tests and charged the smartphone with different chargers.
The phone was at ~30-40% battery and i only plugged it for about 1 minute per charger
Used USB-Tester:
USB-A to C - FNB28
USB-C to C - FNC88
Used Chargers:
Poco X3 33W Charger (33W max)
Huawei Supercharger (22,5W max)
Baseus 65W GaN USB-C (65W max) / USB-A (30W max)
Hama Quick Charge 4+ (27W max)
Used Cables:
USB-A to C - Poco X3 cable
USB-C to C - Baseus 1m 100W PD
Here are my quick results at 30-40% battery, plugged for only 1 minute
Spoiler: Poco X3 ~25W
https://imgur.com/6xMNhZX
Spoiler: Huawei SC ~19W
https://imgur.com/Idoj3Vx
Spoiler: Baseus GaN USB-A ~26W
https://imgur.com/HEelNUU
Spoiler: Baseus GaN USB-C ~22W
https://imgur.com/GQjZc11
Spoiler: Hama QC 4+ ~13W
https://imgur.com/HUrroEQ
edit: changed pictures to imgur (no 10 Posts)

I'm not really a fan of fast charging for any device and see it more as a gimmick. If you change your phones yearly then it is a non issue, however for people who use their phones for 3+ years, it is a surefire way to degrade your battery capacity.
With higher power charging (w/ power being P=V*I), comes more heat which is damaging to any lithium-polymer battery. Personally, I only charge my phone to 85% and only let it discharge to 25% for minimal battery degradation.
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As can be seen, the 85-25 cycle minimizes battery degradation over time compared to other methods. 75-25 is also nice, but practicality dictates we follow 85-25.

Revontheus said:
I'm not really a fan of fast charging for any device and see it more as a gimmick. If you change your phones yearly then it is a non issue, however for people who use their phones for 3+ years, it is a surefire way to degrade your battery capacity.
With higher power charging (w/ power being P=V*I), comes more heat which is damaging to any lithium-polymer battery. Personally, I only charge my phone to 85% and only let it discharge to 25% for minimal battery degradation.
As can be seen, the 85-25 cycle minimizes battery degradation over time compared to other methods. 75-25 is also nice, but practicality dictates we follow 85-25.
Click to expand...
Click to collapse
That's nice in theory, but i kept battery like that for a year and it still degraded like a normal. This phone is easily replaceble anyway as it has plastic cover instead of glass. I plan to keep this device for 4-5 years, but 40% battery capacity sacrifice is not worth it (if you follow 20-80% rule). Been there, done that.

SkaboXD said:
That's nice in theory, but i kept battery like that for a year and it still degraded like a normal. This phone is easily replaceble anyway as it has plastic cover instead of glass. I plan to keep this device for 4-5 years, but 40% battery capacity sacrifice is not worth it (if you follow 20-80% rule). Been there, done that.
Click to expand...
Click to collapse
Of course , there are other factors such as ambient temperature aside from the charging cycles. Shown above is just one part of the equation.

I'm inclined to agree with Revontheus on fast charging. I recharge overnight and expect the device to last a full day, so charging speed is not an issue.
Because the manufacturers usually already set a degree of charging protection in place, my charging thresholds are 15-85-95% -- FYI, it won't start recharging unless charge drops below the mid-value, all set with VR25 Magisk's Magic Charging Switch module.
Had my Axon 7 as daily driver since mid-2017 and only now is it showing some battery wear, so I'm good...