Lifepo4 Battery Repair Machine 2-24S 4A Lithium Battery Full Automatic Discharge Balancer

Using steps:
1. Power on and start the equipment.

2. Connect the battery pack according to the wires marked on the equalizer or terminal board.

3. check whether the voltage and series numbers displaved on the display screen are normal. lf notcheck the wiring or battery.
4. Start balancing, check whether the balancing voltage is normal, and stop automatically afterbalancing.

Battery Maintenance Procedure:
There is bad cell: replace the cell - fully charged- balance- fully charged- complete the maintenance ofthe battery.
There is no bad cell: fully charged- balance- fully charged- complete the maintenance of the battery.
if the effect can not be achieved, it can be repeated many times.

Attention:
1. Due to the large equalizing current, the balancing wires should be thick enough; otherwise, thewireswill be burned or other problems will occur.
2. B- is the negative of the battery pack. B1 is the first series from the negative.When it is balancing, please be sure inject rot free channel line do not touch the battery, otherwise itmay damage the machine, Make sure that the connection is correct several times before connecting it to the balancing device.

Advantages and Disadvantages of Three Equilibrium Methods

Recharge method:

Advantage:
Replenish energy from the outside and replenish the low voltage string voltage to equal the highest voltage string voltage without wasting the energy of the cell itself.

Disadvantage:
1. The closer the cell voltage is to full capacity, the slower the balancing speed will be.
2. Because the cells are connected directly through the BMS line during balancing without going through the protection board, if there is some accident, the cells may be overcharged and cause danger.

Energy transfer method:

Advantage:
By transferring the energy from a string with a high voltage to a string with a low voltage, there is no other energy loss except efficiency loss.

Disadvantage:
1. The smaller the voltage difference between the battery cells, the slower the balancing speed. That is, each balancing process will slowly change from a large voltage difference to a small voltage difference, so the balancing current will gradually become smaller,

even if The energy transfer of 20A is balanced, and when the voltage difference is reduced to tens of mV, the balancing current will be very small.
2. Although it is energy transfer, it is also charging the battery. In some accidents, the battery may be overcharged and become dangerous.

Discharge method:

Advantage:
1. Don’t charge the battery, so you don’t have to worry about overcharging.
2. The speed of the entire equilibrium process is the same, and the equilibrium speed is fast.

Disadvantage:
Since the balancing method is to release the energy of the high voltage string until it is equal to the lowest voltage string, the excess energy is wasted.

Some comparisons of the three methods:

Safety: Recharge method < Energy transfer method < Discharge method
Speed: Energy transfer method = Recharge method < Discharge method
Loss: Recharge method < Energy transfer method < Discharge method