Battery charger / USB auxiliary power source

Battery charger with a Powerbank feature. Maximum current output 2.5A. Smart detection of automatic charging current and optimal current. Charges IMR, Li-Ion and Ni-MH batteries with a diameter of 10–19mm and length of 30–70mm, such as AA, AAA, AAAA, 10440, 14500, 16340, 18350, 18650.