new universal rechargeable battery charger for 1.2V Ni-mH/Ni-CD battery,3.7V 18650 battery, size for AA,AAA,18650, when put 18650 battery, it can be power bank and with led light function.
new universal rechargeable battery charger.
original invention design with USA patent,european pantent,UK pantent,Japan patent,china Pantent and so on.