Model:NH49AA1800-7S1P Nominal Voltage:8.4V Nominal Capacity:1800mAh Battery cell dimension:AA Battery configuration:7S1P Cycle life:>300 times standard charge time:14~16h(360mA) Fast charge time:2.2h(1800mA) Battery Cover color:Green, Blue, Purple, Orange PVC films Brand:MELASTA or OEM Certifications:CE ROHS SGS MSDS UL IEC Delivery Time:15-20 days Warranty:12 months Protection Function:Over charge, Over discharge, Over current, Short circuit etc.