Can You Keep Lithium Batteries On The Charger. Thus how you store your batteries when you arent using them is important. The quick answer is no its designed to be left on the charger.
Battery University recommends that nickel- and lithium-based batteries be stored with a 40 percent state-of-charge. Lithium-ion batteries can be used until 20 of their capacity remains. When youre charging lithium batteries up fully you can disconnect your charger and leave them in storage.
You do not have to fully charge or discharge your battery for the first life cycle of the battery.
Though lithium batteries could be left on chargers at the appropriate voltage and current range however this might be hard to maintain. You are correct--Charging with a small 15 amp charger and quickly battery going to 100 State of Charge--That is usually the sign of a lead acid battery at end of life--Sufation battery leadsulfate turning to blackhard crystals and no longer being part of the chargedischarge chemistry and other internal factors--The battery will lose Amp. Actually the degradation is probably worst when its fully charged. It is therefore advisable to unplug device with lithium battery from charger when a certain charge level has been attained to avoid stress on the battery.
