Power your sonar or electronics with this Norsk 12.8V 15Ah Lithium Battery. Lithium Iron Phosphate technology delivers exceptional power capacity in lightweight, compact design with one of the best power-to-weight ratios in its class. IP67 waterproof rating makes it fully waterproof and dust-proof-the first portable sonar battery of its kind. Drop-in replacement for traditional SLA batteries without added features. BMS protection safeguards against overcharge, over-discharge, overcurrent, and temperature extremes. 2,000+ charge cycles provide long-term reliability. Includes 3A charger. Lithium Iron Phosphate (LiFePO4) battery 15Ah capacity at 12.8V nominal Direct replacement for standard SLA batteries IP67 waterproof rating (dust-tight and water immersion protected) BMS protection: overcharge, over-discharge, overcurrent, short circuit, high/low temp shutoff Max continuous discharge: 10A Max pulse discharge: 15A for 3 seconds 2,000+ charge cycles Includes standard 3A charger