Fit for – The powerful 14.8V 50Wh 3400mAh rechargeable lithium ion battery powers the Sea Dragon 4500F, 5000F & 5000+ Pro Photo/Video Lights Impressive light running - This battery keeps the light running for up to 60 minutes at full brightness, and 4 hours at 25% brightness Features – Rechargeable lithium-ion battery, 4-cell, 3400mAh, 7.4 V, 50 Wh Battery charge time – Charge time - 2 hours 15 minutes Battery run time: Sea Dragon 4500 - 4 hours at 25% brightness (1125 lumens) and 55 minutes at full power; Sea Dragon 5000F - 3.3 hours at 1250 lumens and constant current, 50 minutes at full power 5000 lumens; Sea Dragon 5000+ - 3.3 hours at 1500 lumens, 100 minutes at 3000 lumens, 60 minutes at 5000 lumens Works with AC Charger Kit for Sea Dragon 14.8V 50Wh Battery; SeaLife item SLKIT09