1Nonenergy consumption energy transfer type active balance board, BAL series possess zero loss mode balance 2By detecting the unbalanced voltage difference between adjacent battery strings, the high voltage is transferred to the low voltage, and the voltage balance between the battery strings is achieved, very practical 3Safe to use without hot. Efficient chip heat dissipation and equidistant heat dissipation layout, which can be connected to the battery pack for a long time for gradual balance 4Daily work is not hot, fever temperature is only 27 degrees Celsius, very reliable 5Applicable battery types are ternary lithium, lithium iron phosphate, and the number of battery strings is 24 Item Type: Battery Active Balance Board Model: BAL-24S Applicable Battery Type: Ternary lithium, lithium iron phosphate Adapt to Number of Battery Strings: 24 Strings Balance Current: 1.2A (maximum) Quiescent Current of Non-Operating Unit: 2A Starting Differential Voltage: 0.1V Balance Conversion Frequency: 1MHZ Balanced Transmission Efficiency: 92% Unit Overcurrent Protection Value: 2.3A (0.2A) Unit Surge Absorption Voltage: 5V Size: Approx. 110 x 74mm / 4.3 x 2.9in 1 x Battery Active Balance Board 2 x Cable 1 x User Manual Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.