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KJ-740
| Cell type | Polymer lithium ion cell |
| Shell material | ABS |
| Color | Black, white,yellow，red |
| Size | 149*71*19mm/149*71*31mm/149*71*43mm/149*71*68mm |
| Charging power | 20W |
| Function | Built-in charging cable，Dual USB，Fast charging |
| Power capacity | 10000MAh/20000MAH/30000MAH/50000MAH |
| Maximum output power | 20W |
