SUNKKO BAL-524A 5A 4-24S Battery Balancer Lithium Battery Pack Voltage Equalization Controller

SUNKKO BAL-524A 5A 4-24S Battery Balancer Lithium Battery Pack Voltage Equalization Controller

Features:
- Active equalizer module for lithium battery pack. Balance the voltage difference of high-capacity battery pack, restore capacity and refresh your battery pack. Recommended for battery pack with capacity over 20AH
- Neat and beautiful circuit
- Double nano transformer enables strong repair capability
- Heat sink keeps the performance of the product more stable
- MCU chip manager is smarter; innovative inverter circuit with higher power
- Automatic low-voltage protection to prevent power loss; over-temperature and over-current protection makes it safe to use
- Energy transfer equalization mode: When the equalizer is activated, high-voltage cells are simultaneously transferred to low-voltage cells to achieve battery voltage balance
- The heat generated by the equalization process is low. When it works at high power, its temperature is only 37.2℃
- The equilibrium voltage difference can reach 0.01V. It is recommended to use shorter and thicker high-quality wires to connect it
- Suitable for high-capacity battery packs, including lithium iron phosphate battery packs and ternary lithium battery packs. When the voltage difference exceeds 1V, the equalizing current will exceed 5~6A. The original cable of the battery pack does not support such a large current and there will be a risk of burnout. Therefore, it is recommended to use our cable to rewire, and be sure to test the line sequence before connecting to the equalizer. Please note that the wrong line sequence will cause damage to the equalizer
- Application areas: for power lithium batteries and energy storage lithium batteries, etc. Suitable for car starting power supply, large-capacity inverter lithium battery and large-capacity ultra-light polymer lithium battery used outdoors
- Two equalization modes: 1. Forced equalization mode: automatically closes the equalization mode after one hour; 2. Continuous equalization mode: continues for a long time
- With LED indicator lights to show you its working status
- Pluggable 3.81mm socket resistant to high temperature. Made of soft silicone, 20AWG flame retardant wire can bear high temperature
- Supports automatic-start equalization. When the load output current reaches 20A, it automatically starts equalization. Can be installed inside a battery pack for use

Package Included:
- 1 x Lithium Battery Pack Voltage Equalization Controller
- 1 x 3.81mm Socket
- 1 x Bundle of Cables (360mm/14.2")
- 1 x Board to Test Line Sequence
- 1 x Screwdriver

Note:
- Battery is not included in the package.

Attention:
It is necessary to use a multimeter to measure the voltage of the balanced cable corresponding to the LED lamp with abnormal brightness and the voltage of the adjacent string to find out the wrong line sequence. Please wire it correctly and then plug in the balancer for use.

Equalizing Current and Equalizing Time:
1. The standard equalizing current of the equalizing module and equalizer is the maximum current that can be output or absorbed by the product design, and is also the maximum current allowed to flow through the chip on this product.

2. When the equalizer is used to equalize the battery pack, the equalizing current is affected by the following factors:
2.1. Internal resistance of battery pack;
2.2. The resistance of flat cable;
2.3. The contact resistance of plugin;
2.4. Voltage difference between battery cells (unbalanced situation)
A: The smaller the internal resistance of the battery pack, the greater the equalizing current
B: The smaller the resistance of wire and plug-in, the greater the equalizing current
C: The greater the battery voltage difference, the greater the equalizing current

3. The measurement method of the balance current:
Since the equalizing current is affected by the loop resistance, when it is connected to the ammeter, it will increase the loop resistance and reduce the balanced current, so it is not recommended to use a connected ammeter. In addition, disconnecting the equalizer line during normal equalization operation will cause damage to the equalizer, so only a DC clamp ammeter can be used to test the current.

4. Equalization time:
A: Under the condition of the same internal resistance of the battery, it can work in balance with the maximum current, and the time is shorter.
B: The equalization time of a large-capacity battery pack will be longer.
C: The smaller the equalization voltage difference, the longer the time.
D: When the equalization work is in the final stage, the voltage difference is very small and the current is small, so the period of time is also long.
E: When the active continuous online balance is used, the balance state is ideal, and the battery voltage difference can also be controlled between 30MV-80MV. This method does not need to pay attention to the time.

Read before Purchasing:
- It is mainly used for ternary lithium and lithium iron phosphate battery packs to balance the voltage of each string of batteries. Before purchasing, please check whether the battery pack voltage difference is too large to cause poor battery life. If your battery is damaged, or the internal resistance is too large, starved, flooding, etc., the equalizer is not for your batteries.
- Since this product operates at 5A, it is necessary to use the cable configured with the product to lead directly from the positive and negative terminals of the battery. The installation process involves the work of soldering and requires the user to have welding tools and certain welding skills.

Precautions for Use:
- Before the cable is removed from your protection board and connected to the balancer, make sure that the line sequence of the protection board is the same as that of the balancer. Reverse connection and wrong connection will damage the balancer and battery, so be careful.
- The equalizer is a maintenance accessory. For customers who need to assemble the battery pack for internal use, it is necessary to externally equalize it first to observe whether the battery state is abnormal. If the situation occurs, pull it out in time to terminate the operation, and contact customer service in time for consultation. After confirming that there is no abnormality, make insulation protection. Before connecting to the equalizer, you need to use a voltmeter and a multimeter to test to ensure that the line sequence is correct.
- During the circuit test process, the customer must conduct on-site visual monitoring to prevent the occurrence of unsafe factors such as short-circuit, over-voltage, and over-temperature, you should immediately terminate the test and disconnect the circuit and give us immediate feedback. We are not responsible for any safety accidents and losses that may be caused by various misuse of this product.