Description

18650 Lithium-Ion Cells HX-4S-A20 The battery management system is used to protect the battery and prevent it from being over-discharged or over-charged during use, resulting in battery damage.

Features of 18650 Lithium-Ion Cells HX-4S-A20:

1. Small size.
2. Simple wiring.
3. Targeted.
4. Custom installation.

Parameters of 18650 Lithium-Ion Cells HX-4S-A20:

1 Model HX-4S-D20
2 Voltage range 4.25~4.35V±0.05V
3 Size 35x35x3.6mm
4 Overvoltage range 2.3~3.0V±0.05V
5 Upper working current 10A
6 Working temperature -40 to +50 Celsius
7 Maximum instantaneous current 20A
8 Storage condition -40 to +80 Celsius
9 Static current Less than 30uA
10 Effective life More than 50000 hours
11 Internal resistance Less than 100m ohm
12 Short circuit protection Yes, Charge recovery
13 Charging voltage 16.8V-17V
14 Controller S-8254AA, Connect 4pcs lithium battery at B+, B3, B2, B1, B-P+ and P- is output or input

Attention:

Please strictly follow the wiring diagram: 0V (B-), 3.7V (B1), 7.4V (B2), 11.1V (B3), 14.8V (B+), do not intentionally short-circuit!
After connecting the wire, it needs to be charged before it has output. In series 4 batteries, please ensure that the voltage of each battery is the same. If it is different, please charge each battery separately and then use it in series. In the discharge test, the rapidly decreasing voltage of the battery is due to a poor battery. Don’t mix good batteries with bad batteries! The more similar the battery capacity or internal resistance, the better! (The effect of 2 good batteries +2 poor batteries = The effect of 4 poor batteries).

Caution:

The Battery protection board cannot be used for a lithium iron phosphate battery, hernia lamp, hand electric drill battery pack, electric fish electromechanical battery group, electric bicycle battery pack, children’s car battery, 775(4A) above motor, 1W fisheye LED light.
For the discharge products with 3A current and above, the discharge ratio of the battery should be above 3C.

Multiplier calculation formula:

1C multiplier battery, 2000mAh capacity is equal to 2AH*1=2A upper limit working current.
3C multiplier battery, 2000mAh capacity is equal to 2AH*3=6A upper limit working current.
In use, if the battery is hot, it means that the battery multiplier is not applicable. This situation cannot be used for a long time, and the battery will be damaged quickly.

Application:

1. Small power inverter
2. Massager battery pack
3. LED lamp backup power
4. Electronic products
5. Solar street lamp battery pack
6. Monitoring standby power supply

1. Over charge voltage 4.25- 4.35V +- 0.05V.
2. Over-discharge voltage 2.3- 3V +- 0.05V
3. Max working current is 10A.
4. Max peak current is 20A.
5. Working temperature is -40 to 50.
6. Storage temperature is -40 to 80.
7. Small current id 6uA.
   

   Why Choose the Battery Protection Board 4S 20A 14.8V BMS for 18650 Lithium-Ion Cells HX-4S-A20?

   1. Enhanced Safety: Provides comprehensive protection against overcharging, over-discharging, over-current, and short circuits, ensuring your battery operates safely and reliably.
   2. Efficient Performance: The balancing function maintains equal charge distribution across all cells, optimizing battery life and performance.
   3. Supports Medium Power Applications: With a 20A current rating, it is ideal for a variety of medium-power devices like electric bikes, power tools, and DIY projects.
   5. Cost-Effective: Not only does it deliver professional-grade battery protection at an affordable price, but it also ensures accessibility for both hobbyists and professionals, making it a smart choice for various applications.

   Choose the Battery Protection Board 4S 20A 14.8V BMS HX-4S-A20 for safe, efficient, and reliable management of your lithium-ion battery packs in a wide range of applications.