the truth about HTC extended batteries which claim same size , higher capacity

Magpir

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Jul 4, 2011
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Under mango or one of the firmware updates which had been updated recently , u will see yr battery saver is fluctuating , at one time saying u have a 1 day, while another time it says u only 2 hours on a reasonably fuller charge.

there is a problem with HTC original batteries, rather i will say a safety regulation after recent incidents with battery safety

yr htc only charges up to 85% level even though the phone indicator shows 100%
when u unplug it from the charger, it immediately drains and stays at 80%.

THis is likely why the HTC phones have a shorter battery life, whether its android or windowsphone 7


this is not a defective battery, its made intentionally by HTC for 2 reasons 1) safety , 2)battery longevity ,the safety mechanism built in stops charging it to 100%, thus overcharging, overcharging means the battery is out thru stress which may pose a hazard. if a battery is fully charged to true 100 % , it poses a hazard if one of the pins in the phone connectors break. apparently this pin tells the charger or the phone not to charge anymore once reaching 100%. there is a possibility that if this pin breaks, the phone will overcharge and pose a safety hazard. So this is why HTC batteries dont charge to true 100% and this particular pin is tweaked to full charge to only 80%


wheareas, mugen batteries ect do not have this safety regulation or charging limit although they are safe to use, so they seem to last 20% more than stock HTC battery because they fully charge to 100%.
Mugen or other reputed aftermarket batteries are more likely to wear out sooner than stock batteries unless depending on the quality of the battery..


in order to get yr HTC battery to full charge it u need to bump charge it.bump charging is a technique to fully charged the battery closer to its real capacity

to bump charge

1) fully charge the battery from 20% to 100% , as indicated by the phone OS
2) turn off the charger, turn on again, u will notice the phone charges again even though its 100% full for 1/2 a minute. wait for it to fully charge
3) repeat the above step 2) for 10 times
4)use a timer plug to simplify the process. Set the timer plug to on/off every minute for 10 times. u need to get a digital timer for this purpose with mutiple timer settings
 
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Aphasaic2002

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Jun 30, 2011
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yr htc only charges up to 85% level even though the phone indicator shows 100%
when u unplug it from the charger, it immediately drains and stays at 80%.

THis is likely why the HTC phones have a shorter battery life, whether its android or windowsphone 7
Interesting. I noticed this with my HTC Mozart; battery indiactor drops one bar (to 80-85%) as soon as I take it off charge. Always assumed it was a WP7 thing - like it was drawing a lot of current.

Where did you get this info from? Looks like I'll be ordering a new (non-HTC) battery asap!
 

NebZoNe

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If it's true i won't buy a plug timer but a new battery, not from HTC...at least i hope it's true caus my battery capacity sucks and that gives me hopes, enjoying my hd7 more than a half day without plugging it (when it's possible)...so nuff thanks for the tip.

Sent from my HD7 T9292 using XDA Windows Phone 7 App
 

adesonic

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Oct 24, 2005
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Funny, I have always done this with every device (maybe not the x 10 repeat!). never knoew that was the reason though thanks!!
 

Magpir

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Jul 4, 2011
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now u know why they claim mugen and other aftermarket batteries last longer...

mugen 1500 mah battery with the same size as the stock 1230 mah batt>

thats bull..because a 1500 mah battery looks much bigger ... the samsung omnia 7 has a 1500 mah battery and its 30% larger than than the HD7 battery....
 

Magpir

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Interesting. I noticed this with my HTC Mozart; battery indiactor drops one bar (to 80-85%) as soon as I take it off charge. Always assumed it was a WP7 thing - like it was drawing a lot of current.

Where did you get this info from? Looks like I'll be ordering a new (non-HTC) battery asap!
thats because the battery stops charging once it reaches 85%

u may have heard of the HTC bump charging technique. thats what this si all about , but u need to do it everyday, so get a timer plug and leave it to do its job overnight everyday

the best is to use a digital programmable timer plug .
 

Aphasaic2002

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Jun 30, 2011
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Ok, had a google and looks like your post is only partially true:

http://phandroid.com/2010/12/25/you...is-lying-to-you-and-its-not-such-a-bad-thing/

Appears it's an issue with all smartphones, not just HTC! Also bump-charging will dramatically reduce battery life.

As someone in the comments says; why can't the phone just stop charging and switch to running wall power once battery gets to 100%, same as laptops? I assume this is what Apple do, as the iPhone doesn't suffer from the same issue.
 

ScottSUmmers

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Apr 2, 2011
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Interesting because I have no problems with my battery doing that running Mango beta 7712 on my HTC 7 Pro.

The moment I take my battery off once it turns green, it stays at 100% for hours if there's absolutely no activity on it.

I think it's how far you guys are draining your batteries. Ever since I've gotten my phone, only twice did I push the battery lower than 15% charge; once on accident and another to recalibrate it. After that, I never pushed it lower than 15% and made sure to only recharge it after at least a good 20% of usage (days i feared i wouldn't be near a charger and needed full charge).

Granted, I'll add that it maybe be because I swap the battery out every other night with a spare, and if I do so I make sure there's between 50-58% charge left.

No bump charging either.
 
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Magpir

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Interesting because I have no problems with my battery doing that running Mango beta 7712 on my HTC 7 Pro.

The moment I take my battery off once it turns green, it stays at 100% for hours if there's absolutely no activity on it.

I think it's how far you guys are draining your batteries. Ever since I've gotten my phone, only twice did I push the battery lower than 15% charge; once on accident and another to recalibrate it. After that, I never pushed it lower than 15% and made sure to only recharge it after at least a good 20% of usage (days i feared i wouldn't be near a charger and needed full charge).

Granted, I'll add that it maybe be because I swap the battery out every other night with a spare, and if I do so I make sure there's between 50-58% charge left.

No bump charging either.
yes its better to maintain 20% charge .
 

Magpir

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Just to confirm I have used the timer plug technique twice the last 2 days .
This is what I have

30% charge
8 hours since last charge

Moderate usage.

Somehow those who claim to use momax or mugen batteries claim to have the same results above .
 

N8ter

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Sep 1, 2010
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My HD7 doesn't do this. Tried several times even over a 5 minute span keeping the battery indicator in view. It never dropped to 80%.

---------- Post added at 08:57 AM ---------- Previous post was at 08:54 AM ----------

yes its better to maintain 20% charge .
You should not let Li-ION batteries fully discharge, ever. It's good to keep it on a charger whenever you can, than keep it off a charger and let it fully discharge. That wears the battery out.

Also, there's no risk in overcharging the battery because almost all decent phones will stop charging when the battery is full. They know when to stop charging, just like they know when to alert you that the battery is fully-charged (via a notification and/or changing the LED Notification light color).
 

vangrieg

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You actually can overcharge it by exposing a fully charged battery to higher temperatures - putting the phone in direct sunlight or setting it in a car holder in the way of hot air from the heater deflector while using Satnav, for example. In order to avoid these conditions, controllers do prevent batteries from 100% charge. That being said, I don't think there's a standard for marking battery capacity, and an honest manufacturer should put real effective battery assembly capacity accounting for those limitations, not the sum of capacities of included cells. Don't think they do it really.
 
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DavidinCT

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You actually can overcharge it by exposing a fully charged battery to higher temperatures - putting the phone in direct sunlight or setting it in a car holder in the way of hot air from the heater deflector while using Satnav, for example. In order to avoid these conditions, controllers do prevent batteries from 100% charge. That being said, I don't think there's a standard for marking battery capacity, and an honest manufacturer should put real effective battery assembly capacity accounting for those limitations, not the sum of capacities of included cells. Don't think they do it really.
Yea, its like computer hard drives and flash cards....Formated they never will be the size your quoted or paid for.

I wish there was standards for this and it's only sold on the actuall usable space or time.
 

ScottSUmmers

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Also, there's no risk in overcharging the battery because almost all decent phones will stop charging when the battery is full. They know when to stop charging, just like they know when to alert you that the battery is fully-charged (via a notification and/or changing the LED Notification light color).
It's actually still not good to leave li-ion batteries plugged in when they are fully charged and stopped charging. They will suffer from capacity loss that way as well. Not to mention any heat coming off the device.