These 100A 12s LFP battery management system (BMS) units are the highest quality BMS you can get. Used in medical equipment, they are designed for reliability and longevity. Currently we have Lithium Iron Phosphate (Lifepo4) / LFP 12s units. Each BMS works for up to 12 cells in series. This high quality BMS has a low temperature cutoff that really works.It will protect your batteries at a cell level by disengaging charging in freezing temperatures. LFPs most definitely need a low temp cutoff to prevent damage to the battery if there's ever a chance they could go below freezing! This is actually a medical grade BMS trusted by manufacturers that make batteries intended for medical and military applications. This BMS is solidly built and comes with two 10 gauge positive and two 10 gauge negative silicone wires, making the equivalent of 7 gauge wires for each polarity if both are used for each. DIMENSIONS - (3S-16S) - 5.5" X 4" X 5/8. DIMENSIONS OF 20S ONLY - 7.5" X 4" X 5/8.
Lithium Iron Phosphate (Lifepo4) settings. Overcharge voltage per cell: 3.65 Overdischarge voltage per cell: 2.5 Discharge Continuous Amps: 100 10 second Discharge Burst: 200a Charge Continuous Amps: 60a Balancing Current: 60mA Low temp cutoff: 32° F (0° C) High temp cutoff: 167° F (75° C).