HotRC B3 is a cost effective, simple balance charger for 2S and 3S batteries. The charge rate of 0.8A makes it suitable for smaller batteries (300 - 1000mAh). Larger batteries can also be charged but will take a bit longer. Charging happens through the balance connector only, so no need to worry about different connectors used on the main voltage lead.
Features: Easy plug and play charging. With over temperature protection, short current protection, automatic current regulation protection.