Features: brand new and high quality Efficient energy transfer equalization board, high precision 5MV whole group equalization, not adjacent equalization Capacitive technical parameters, working voltage 1.8-4.5V, suitable for ternary lithium, lithium iron phosphate, lithium titanate 3~24 series capacitive/inductive 1.2-5.5-A From the for protection of the current, the monomer will automatically sleep when it is lower than 3V and will not damage the battery. Equalization prompt: 1. When the equalization light is on, the equalization work is turned on. 2. The equalization light is off, and the equalization circuit sleeps. 3. The equalization light flashes, the string index is dropped, or the circuit is faulty Specifications: Material:Metal Working voltage: 1.8V-4.5V Size1: Approx.145x130x16mm/5.70x5.11x0.62inch Size2: Approx.135x120x16mm/5.31x4.72x0.62inch Size3: Approx.130x100x16mm/5.11x3.93x0.62inch Size4: Approx.125x80x16mm/4.92x3.14x0.62inch Size5: Approx.91x70x16mm/3.58x2.75x0.62inch Size6: Approx.93x50x16mm/3.66x1.96x0.62inch Size7: Approx.67x50x16mm/2.63x1.96x0.62inch Size8: Approx.66x46x16mm/2.59x1.81x0.62inch The product is suitable for ternary lithium (special specifications ), lithium iron phosphate, lithium titanate Note: 1.Please allow 1-2mm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1PcxLithium Battery Ba-lance Board