SWIT PB-R290S+ | 290Wh Waterproof IP54 Robust Heavy-duty Battery, V-Mount, also ideal for long term use or high power draw lights SWIT Exclusive Quality; Robust 290Wh; Water proof and dust proof IP54 certificated;also ideal for long term use or high power draw lights with max stable output 250W/20A;1.5m Drop-Off really tested, Protected with Robber Corners+Dual Housing; Multiple circuits and peak-current protections; 1xD-tap in/out; Power info on SONY/RED; 8-LED indicators;Only 3.5 hours with 6A fast charging (by SWIT PC-P461S/S-3812S); 14.4V V-mount