Quote:
Originally Posted by sweetbmxrider
Not that it helps the OP but with lithium ion batteries, you do not want to let them sit on the charger after they are fully charged. It significantly decreases battery life and charge capacity.
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This is fantastic advice.
I actually had a chance to attend an industry presentation done by a battery manufacturer about modern battery life (phones, laptops, etc). Here are some of the take-aways:
1.) Heat kills batteries fast. Leaving a battery on a charger will make it discharge/charge all night. That is very bad.
2.)
Full charge when you are down to 50% and then disconnect. Battery life is like a bell curve. On one side are batteries taken down very low and brought all the way up, and on the other are batteries charged at 80% and up or charged overnight. What they have found is that charging at 50% gives the greatest number of charge/discharge cycles over the life of a device, and the batteries will drain slower.
3.) If you need to store a device, discharge it to 50% life and store it in a cool, dry environment.
4.) Rate of voltage transfer matters. A slow charge keeps the battery cool and is a good method long term. A fast charge (like a car charger) will heat it up a lot during the process and shorten battery life. I asked if USB charging off of a laptop was a good way and they said yes.
5.) 4g and bluetooth will kill your phone/tablet battery fast. So will any app that uses the pull method to get data in short invervals
(Read: knock facebook status updates to once an hour or on-demand only). Push is not nearly as bad.
6.) Beware of cheap third party or grey market extended batteries.
Aside from that, and FWIW, of the 7-10 devices I am responsible for at work, they all have "eh" battery life. My HTC I2 has been OK, the iPhones were OK, the Samsung Charge was poor on 4g, the Galaxy was OK.
Basically new phones are more and more like mini-tablets without the space to fit a proper battery. And as we all know, battery tech is nowhere near device tech, and it will never even be close. Ever.