C3 Chargers
Any C3 charger can be used with a Ni-Cd battery; however Lithium-Ion batteries require a multi-chemistry charger.
See comparison and compatibility chart for a complete list of C3 chargers and corresponding battery compatibility.
No, the battery and charger are designed with technology that prevents the battery from being overcharged.
Yes, it is perfectly safe. The charger will automatically stop charging when the battery is full.