1、BAL series possess zero loss mode balance, non-energy consumption energy transfer type active balance board 2、By 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 3、Safe to use, not 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 4、Daily work is not hot, fever temperature is only 27 degrees Celsius, safe and reliable 5、Applicable battery types are ternary lithium, lithium iron phosphate, and the number of battery strings is 4 1 x Battery Active Balance Board1 x Cable Item Type: Battery Active Balance BoardModel: BAL-4SApplicable Battery Type: Ternary lithium, lithium iron phosphateAdapt to Number of Battery Strings: 4 StringsBalance Current: 1.2A (maximum)Quiescent Current of Non-Operating Unit: ≤2μAStarting Differential Voltage: ≥ 0.1VBalance Conversion Frequency: 1MHZBalanced Transmission Efficiency: ≥92%Unit Overcurrent Protection Value: 2.3A (± 0.2A)Unit Surge Absorption Voltage: 5VSize: Approx. 60 x 20mm / 2.4 x 0.8in