Battery problem

[Guest Senapone]

I've read the old topics about the battery drain problem...

Mine C500 has the same fact, from last monday it began to suck all the battery in 2 days instead the 5-6 it had always use.

I've uninstall all the programs and next time it will be full i'll try to HardReset it hoping it works.

I've also read it's better not to put the mobile in charge when its battery is empty.

Which is the right time to recharge the phone?

At which power percentage do you put yours in charge?

I'm even thinking in underclock it in order to have more autonomy...

Does someone had already test it?

Could be dangerous to hold the phone always underclocked?

Many thanks! :)