what? these battery chargers dont come with like a stopper? when it gets full isnt it suppose to stop charging? or is that only high quality chargers? i thought all chargers come like that
Here is a way to get a perspective on the energy density. A typical lithium-ion battery can store 150 watt-hours of electricity in 1 kilogram of battery. A NiMH (nickel-metal hydride) battery pack can store perhaps 100 watt-hours per kilogram, although 60 to 70 watt-hours might be more typical. A lead-acid battery can store only 25 watt-hours per kilogram.
A lithium-ion battery pack must have an on-board computer to manage the battery in regards to receiving charge and discharging. If/ when this "computer" fails the battery will not signal the charger that it is fully charged. Likewise if the chip in the charger fails it will continue to charge the battery regardless of whether or not it's fully charged. VERY VERY rare but it happened to me.
Li-ion batteries contain a protection circuit that shields the battery against abuse.