GP SPEED CHARGER (USB) + DOCK

It takes 2+ hours to fully charge two batteries, or 4+ hours to fully charge four batteries (AA batteries 2,100mAh) via USB connection. The dual colour LED display indicates charging status as well as if any single-use or bad batteries are inserted. Another safety detail is the auto power cut-off by using negative delta V, temperature cut-off and safety timer protection , which helps you avoid over-charging, over-voltage and short circuiting, as well as preventing damage to the battery lifespan. This versatile charger works via USB or any GP ReCyko charger dock (specially developed for ReCyko charger models B421, M451 and P461). With four AA 2,600mAh rechargeable batteries included, you're good to go with this optimal charging solution.