Power your sonar or electronics with this Norsk 12.8V 10Ah Lithium Battery. Lithium Iron Phosphate technology delivers superior power in lightweight, compact design with highest power-to-weight ratio in its class. IP67 waterproof rating makes it the first waterproof portable sonar battery of its kind-fully protected against dust and water immersion. Direct replacement for standard 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 10Ah 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 Weight: 3 lbs. Dimensions: 5.94" x 2.56" x 3.7" Includes standard 3A charger