Of course, it is completely fine to leave a Ryobi battery on its charger while it's being charged. Otherwise, how could it ever be reused once it's drained? However, you do still want to take it ...

Keeping track of batteries and chargers can be a pain, and it may be tempting to charge a 60V DeWalt battery on a 20V charger ...

Lithium batteries cannot be charged on traditional battery chargers and instead should be repowered on specific chargers at 14.4 or 14.8 volts. Courtesy Dakota Lithium Batteries If anybody could ...

The best and safest answer lies in using a DC-to-DC (direct current to direct current) charger, which serves as a battery isolator like an ACR but can also convert excess amps from the starting bank ...