Charge phone prior to using? - Sprint HTC EVO 4G LTE

Are we going to need to charge this phone for 8-10 prior to first use?
Sent from my Epic 4G

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They always say to do that, but I have never been able to keep hands off a new phone that long.

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pdappcgeek said:
Are we going to need to charge this phone for 8-10 prior to first use?
Sent from my Epic 4G
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Usually they come about half charged so you'll be good for a few hours. The 8-10 hour rule was for older battery technology (nickel cadmium), the new kind (lithium polymer I think?) is much more flexible as far as charging schedules. I don't think you have to do anything special for the initial charge.

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pdappcgeek said:
Are we going to need to charge this phone for 8-10 prior to first use?
Sent from my Epic 4G
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The better question is can you wait that long?
Sent from my PG86100 using Tapatalk 2

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Honestly, when you get your phone (and once a month) you should let your battery drain completely (within 2% is a decent rule) and then charge all the way. Do this for 2-3 cycles and you battery will last a lot longer. This is true for any electronics.

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Skullmonkey said:
Honestly, when you get your phone (and once a month) you should let your battery drain completely (within 2% is a decent rule) and then charge all the way. Do this for 2-3 cycles and you battery will last a lot longer. This is true for any electronics.
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not quite - the below is from Battery University in regards to lithium ion batteries (which is what's in the evo);
If at all possible, avoid frequent full discharges and charge more often between uses. If full discharges cannot be avoided, try utilizing a larger battery. Partial discharge on Li-ion is fine; there is no memory and the battery does not need periodic full discharge cycles other than to calibrate the fuel gauge on a smart battery.
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And
Lithium-ion is a very clean system and does not need formatting when new, nor does it require the level of maintenance that nickel-based batteries do. The first charge is no different than the fifth or the 50th. Formatting makes little difference because the maximum capacity is available right from the beginning. Nor does a full discharge improve the capacity once faded. In most cases, a low capacity signals the end of life. A discharge/charge may be beneficial for calibrating a “smart” battery, but this service only addresses the digital part of the pack and does nothing to improve the electrochemical battery. Instructions to charge a new battery for eight hours are seen as “old school” from the nickel battery days.
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alainater said:
The better question is can you wait that long?
Sent from my PG86100 using Tapatalk 2
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LOL..... I ask because I don't want to have to feel guilty about not waiting!
Sent from my Epic 4G

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Ummm.... Yes? Maybe? HELL TO THE NO!

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Lithium Polymer batteries are not the same as Lithium Ion batteries.
Avoid draining them to the point the phone shuts off. If they get too low they die.
Never run them down on purpose.
I run RC trucks, I have been using LiPo batteries for several years.
Skullmonkey said:
Honestly, when you get your phone (and once a month) you should let your battery drain completely (within 2% is a decent rule) and then charge all the way. Do this for 2-3 cycles and you battery will last a lot longer. This is true for any electronics.
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fachadick said:
not quite - the below is from Battery University in regards to lithium ion batteries (which is what's in the evo);
And
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If the phone's charge time is roughly 2-4 hours, what will charging it 8-10 accomplish?
The Sprint store opens and activates phones on the spot regardless of charge, which leads me to believe that--while some/most Sprint store Employees aren't very knowledgeable in electronics, I'm sure they would have been told in one of the many meetings they have that you need to not do this and inform the customer of needing to charge their phone for __ amount of time before using it.
At any rate I'm just playing along with the possibility. Of course you don't need to charge your phone any amount of time before using it the first time. Our battery technology has evolved to the point where trying to keep track of charge schedules is irrelevant and not needed. Seriously, if it were, they would have provided a small paper calendar with your phone so that you can mark when the last time you fully discharged it as well as instructions on how to care for your battery.

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fachadick said:
not quite - the below is from Battery University in regards to lithium ion batteries (which is what's in the evo);
And
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While this is accurate, I still always try to full discharge as often as possible. I do this because the phone reads battery information and calibrates the battery percentage based on that.
In my own unscientific research, it seems that frequent charging messes up the battery readings. I know that there was once an article about wiping battery stats being a placebo effect, but it really does seem to help when you wipe, full charge, full discharge. The phone always seems to last longer, but its likely because the phone is properly calibrating the max/min capacity of the battery accurately.
Sent from my PG86100 using Tapatalk 2

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The batteries in phones anymore do not use memory in the actual cell. The phone itself does keep record of the battery to help protect it, and clearing that out and re-calibrating the battery by draining it can help, but doing full drains to the battery will just reduce the overall life span of the battery.

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Unreasnbl said:
Lithium Polymer batteries are not the same as Lithium Ion batteries.
Avoid draining them to the point the phone shuts off. If they get too low they die.
Never run them down on purpose.
I run RC trucks, I have been using LiPo batteries for several years.
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The batteries in phones are not lipos.. they are lithium ion... Putting a lipo in a phone is just asking for death or injury lol..
When the first EVO came out this method was dine to train the phone more then the battery and I still use it.. drain till it turns off.. turn back on..keep doing this till it will not turn on..full charge it.. take off charger and put back on till led is green again. I've never burnt out a battery but I can't professional it helped battery life but as I said when EVO first came out battery life was horrid
Sent from my PC36100 using XDA

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grrmisfit said:
The batteries in phones are not lipos.. they are lithium ion... Putting a lipo in a phone is just asking for death or injury lol..
When the first EVO came out this method was dine to train the phone more then the battery and I still use it.. drain till it turns off.. turn back on..keep doing this till it will not turn on..full charge it.. take off charger and put back on till led is green again. I've never burnt out a battery but I can't professional it helped battery life but as I said when EVO first came out battery life was horrid
Sent from my PC36100 using XDA
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The LG Fusic had a LiPo battery.

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Yeah i bet some phones will have no charge after customs played with them for a while and did not turn them off and put them back in for us to get screwed. But you may have a update already apply as well to the phone.

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fsuwade said:
Yeah i bet some phones will have no charge after customs played with them for a while and did not turn them off and put them back in for us to get screwed. But you may have a update already apply as well to the phone.
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If I recall correctly, only a sample from each batch was tested and that tested sample was not shipped out to customers.

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Yup thats what I heard as well

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What I read says this phone has a LiPo battery. They are being used more often in portable electronics than you think.
http://en.wikipedia.org/wiki/Lithium-ion_polymer_battery
grrmisfit said:
The batteries in phones are not lipos.. they are lithium ion... Putting a lipo in a phone is just asking for death or injury lol..
When the first EVO came out this method was dine to train the phone more then the battery and I still use it.. drain till it turns off.. turn back on..keep doing this till it will not turn on..full charge it.. take off charger and put back on till led is green again. I've never burnt out a battery but I can't professional it helped battery life but as I said when EVO first came out battery life was horrid
Sent from my PC36100 using XDA
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I heard LiPo as well.
Sent from my PC36100 using XDA

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simple solution.
keep the phone plugged in while you use it. duh.
charge at the wall and your office computer