[jdesola]

Li-Ion Batteries do not have the 'memory effect' as NiMH and NiCd batteries do. With NiMH and NiCd you definitely need to run them dead and then charge fully to 'teach' it what full and empty are. The Li-Ion battery will give the best performance if not fully drained and given partial charges. You should, however, fully discharge the battery every 30 charge 'cycles.' Li-Ion batteries are good for about 500 of these cycles (2-3 years).