Does battery life deteriorate if you keep a laptop charging for too long?
(Li-Ion battery) Laptop chargers operate in Constant Current (CC)- Constant Voltage (CV) mode. In CC-CV, battery is charged with constant current until battery voltage reaches to certain voltage limit. Once batter voltage touches set limit, current is slowly tapered to zero which means no further charge is put in the battery. This protects battery from any overcharge.
In fact, one should use laptop with charger plugged in whenever possible to have good battery life as lithium ion battery life depends on number of charge-discharge cycles which are limited.
No. In fact, this is the best way to increase lithium-ion battery life.
Rechargeable batteries deteriorate a little with each charge or discharge. Li-Ion batteries, the kind used in pretty much all laptops on today's market, last for several hundred charge-discharge cycles.
In addition, Li-Ion batteries discharge slowly on their own if not used. That contributes to the deterioration, too.
Li-Ion battery chargers (built into laptops) detect when a fully-charged battery starts to discharge from non-use, and "top off" the charge.
This question was answered many times before !!!!
The answer is NO !!! Ones the battery is 100% charged,the internal charge control circuit disconnects the battery from the charger. As long as the charger is connected to the lap top, the battery stays disconnected.