Battery Equalizer 21S Active Equalizer Lifepo4 Li-Ion LTO Lithium Battery Energy Transfer Balance Board 72V (Current : 17S-21s 5a Balancer)

Notice:This balancer supports 17~21s batteriesThis is an equalizer, it could balance the voltage difference between battery series to make the batteries more durable, and the battery life would be longer, It's not BMS, so it does not have the over-voltage, over-current and over discharge protection, but it can work with BMS together, It's suitable for Li-ion and LiFePo4 batteries, could be used with any capacity of batteries, Due to the balance current is fixed, so the balance time for large capacity of battery is slow, and for small capacity battery is fastSuitable battery types: Li ion/LiFePO4/LTOSingle cell voltage range: Li ion / LiFePO4 version:2.7-4.2VLTO version:1.8-4.2VVoltage equilization accuracy: 5mV(Typical value)Equalization method: The patented balance architecture fit capacitor mode, the entire battery group at the same time to participate in the active balance of energy transferBalancing current: Voltage difference is 0.08V, balance current is 1A, the voltage difference is directly proportional to the balance current, the maximum allowable working current is 6.0ASleep voltage for undervoltage protection: Li ion / LiFePO4: below2.7VLTO:below1.8VWorking temperature: -10°-60°Whether an external power supply is required: No external power supply is needed, and the whole group is balanced by internal energy transfer of the batteryTechnical parametersOperating voltage 1.8V-4.5V, suitable for li-ion, LiFePo4, lithium titanate.Working principle: the balanced work will be started when the balanced board is connected to the battery. The original ultra-low internal resistance MOS and 2OZ copper thick PCB are adopted, And the balanced current is 0-5.5a, the more balanced battery, the smaller balanced current.The static current is around 12 mA. It is recommended that the battery capacity should be in the range of 60-300AH!With undervoltage dormancy protection,

• This battery voltage balancer can also be connected in series in the battery for a long time, thereby automatically maintaining the balance of the battery state
• Our battery equalizer is specially used to maintain the charge and discharge balance between each battery in the series battery
• This battery equalizer is recommended for use in autos, boats, golf carts and any other battery groups configuration
• Through reverse polarity protection and low voltage disconnection function, this battery equalizer can extend battery life
• When you hear some sounds because the current is flow until equilibrium