- Lithium battery x 4pcs (replaceable)
- 1 DC jack for Solar panel and DC adaptor charging
- Battery capacity indicator
-Working time
Strong Light (6Ah): 2-3 hours, Weak light (6Ah): 20 hours
MP3 ≥20 hours
- Charging time (6Ah) :8 -10 hours
- Solar panel 6V/3W