Kit Power Bank Batteria 1/2/4 x 18650/21700 Telefono Ricarica Rapida Circuito Custodie
2.4A output, four sections can support 18650, 21700 two kinds of batteries can be selected. Applicable battery: Flat-head 18650, 21700. 21700 four sections: 8.2 8.2 2.8cm. 18650 single section: 8 2.1 3cm.