This BOSCH GAL12V-20 12V Max Lithium-Ion Battery Charger gets the user power ready in a hurry. The BOSCH GAL12V-20 12V Max Lithium-Ion Battery Charger can fully charge a spent 12V Max 2.0 Ah Lithium-ion battery in approximately one hour, and it is compatible with Bosch 12V Max Lithium-ion batteries. This means that users are ready to get back to work with little downtime. BOSCH GAL12V-20 12V Max Lithium-Ion Battery Charger is engineered with regulated 80/20 dual-mode charging for fast and secure operation. Regulated dual-mode charge delivers an 80% in fast-charging mode, slows to 20% in long-life mode. The BOSCH GAL12V-20 12V Max Lithium-Ion Battery Charger features indicator lights showing when the battery is charging, finished charging or pending charging due to high temperatures.