like li batteries lose life at high temperature or at full charge. its advisable to keep them at as low temp as possible or at 40% charge.
:O,I just got an original BP-5L Li POLYMER Ion battery, and it cost me a bundle.
Thanks for telling me ,coz I used to keep my cell phone batteries at 100% charge as much as possible,...........will try and lower my recharge cycles to keep them at 40% now