USPRO&reg;18650 Lithium Battery Charging Board Charge and Protection Dual Functions Brand new 18650 Lithium Battery Charging Board Charge and Protection Dual Functions MP1405 The input terminal has a micro USB female interface can directly charger it with your mobile phone charger One ampere large current flow lithium battery with charging and protection function very safe Reserved the input voltage wire solder joint would be very easy to DIY Durable and cost effective