Brief description: 1. When the battery is connected by wire, the wrong sequence will burn. The greater the differential pressure is, the greater the equalizing current will be, and the the time is, the smaller the differential pressure will be. Multiple parallel connections can increase the current, and multiple series connections can increase the number of series. 2. It is recommended to record the voltage of each battery use, and record the voltage again after 1-3 of use for comparison. Specification: Type: 4S Suitable battery type: 3.2V-4.4V (lithium iron phosphate/lithium ternary) Maximum equalizing current: 3A (at 1.2V differential pressure) Equalizing voltage accuracy: 0.01V Suitable temperature: - 25 -+7525 Equalizing starting condition: always equalizing, the greater the differential pressure, the greater the equalizing current Principle of equalization mode: capacitive energy transfer Static current loss: about 2-6mA (slight difference in 4S-8S) Low voltage protection of battery: when the voltage of single battery is lower than 2.5V, it will automatically turn off the balanced protection battery External equalizing switch: can be connected externally (generally not required) 4S appearance size: 62 x 50mm Note: The battery pack within 2Ah-400Ah can be used, the larger the capacity is, the the equalization time will be Material: PCB colour: Red Package Contents: 1 x Equalizer Energy Transfer Board 1 x connecting wires Only the above package content, other are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.