MELASTA 12V 20Ah Li-ion Rechargeable 18650 battery pack for portable power bank (NCR18650PF-3S7P 11.1V 20.3Ah 225.33Wh) Battery Configuration:Panasonic NCR18650PF cells * 21 Output voltage:11.1V working voltage, peak charge voltage @12.6V, end of discharge voltage @9.0V Battery Capacity:20.3Ah (225.33Wh) Cycle life :> 500 cycles (80% of initial capacity @ 0.2C rate, IEC Standard) Protection:One PCM (25A limited) installed with the battery pack and protects the battery from: Overcharge (> 12.6V) Over discharge (25 Amps) Short circuits Must wait min of 30 minutes after battery is fully charged to allow the PCM to perform balance function on all the cells within the pack. Prewired:Charge wire: UL 3135 AWG#16(red and black), Length= 200±5mm; Discharge wire: Same as charge Wire Plug: No available ( depands on cutomers requirement) Charging rate Standard charge: 0.2C ( 4A); charge time: 6h Fast charge: 0.5C( 10A); charge time: 3h Discharging Rate Standard discharge: 0.2C ( 4A), Max continuos dishcarge: 1C(20A) Peak discharge:1.5C(30A < 1 seconds limited by PCM) Charging temperature: 0 to 45 degrees Celsius Discharge temperature: -20 to 70 degrees Celsius Storage temperature: -20 to 40 degrees Celsius Max Dimensions (LxWxH) 60mm x 140mm x 80mm Weight approx. 1020g Cycle life is 4-5 times more than NiMH pack, so it is much economic Applications Replace 24V NiMH and Lead acid battery with much longer cycle life, apply to the E-scooter, E-bike, E-wheelchair Warning Please negotiate with MELASTA technicians to learn more Knowledge on li-ion batter