Solution -for better battery life

sethxp · 11th October 2010, 07:52 AM

Solution -for better battery life

Use original Nokia charger that is rated 5V 550mA and your phone will last 30-40 percent longer.

Original SE charger is rated at 5V 850mA, fast charge is not always good.

Tested on X10mini, X10mini pro, X10/2pcs in our service center.

Best regards
Seth

spence91 · 11th October 2010, 09:47 AM

Hey Seth - Thanks for the tip.

Can you explain why charging slower would affect the overall battery life?
Also, in that case would it be even better if you charged the phone from a usb port (like plugging it into your laptop) which often provides 100-500mA?

sethxp · 11th October 2010, 12:12 PM

Google for "Battery Chargers and Charging Methods" first link for all info about charging schemes and battery chemistry reaction with fast charge and alot of usesfull info.

spence91 · 11th October 2010, 04:31 PM

Just had a quick google -
Fig3 here is a nice graph showing the how fast charging can reduce the overall battery life during the battery lifetime:
http://www.batteryuniversity.com/parttwo-34.htm

This is probably my misunderstanding, but when i read this post originally i thought it was some way to improve battery life as in prolonging the time it takes between needing to charge.. if that makes sense?

sethxp · 11th October 2010, 04:57 PM

partly yes partly no, your link describes charging with higher voltage decreases battery life this is different because voltage is same but current different

example: 3 chargers, our battery is 800mAh in capacity.

5v 400mA - battery charged in 2 hours from 0% to 100% internal chemistry react normal - better absorbtion

5v 850mA - battery charged in little less than 1 hour internal battery chemistry can be little upset cos risen temperature in reaction

5v 8000mA - battery cant quickly absorb this current in chemistry and will propably explode/leak/burn within minutes/seconds

this principle i mean