I know this has been discussed on this forum myriad times but finding this site made things very clear for me a while back.
http://www.powerstream.com/lithuim-ion-charge-voltage.htm
Gives one an idea of capacity and shows the effects of charging to these voltages so you can more easily decide what balance is the best for you.
http://www.powerstream.com/lithuim-ion-charge-voltage.htm
Gives one an idea of capacity and shows the effects of charging to these voltages so you can more easily decide what balance is the best for you.