4S 20A 14.8V 18650 lithium battery protection board

      The protection board can not be used for lithium iron phosphate battery, hernia lamp, hand drill battery pack, electric fish battery pack, electric bicycle battery pack, children's car battery, 775 (4A) motor, 1W fish eye LED light, Please pay attention to the combination of the purchase of customers! The

 

 Low power inverter, massager battery pack, LED light standby power supply, electronic products, solar street light battery pack, monitor backup power supply, and other products.

Note: 3A current discharge products above, the battery discharge rate to 3C or more.

Magnification calculation formula: 1C magnification of the battery, 2000 capacity is equal to 2AH * 1 = 2A upper limit current.

3C magnification battery, 2000 capacity equal to 2AH * 3 = 6A upper working current.

In use, the battery will heat is the battery does not apply, this situation can not be long-term use, the battery will soon be damaged.

 

Note 1: strictly according to map wiring 0V (B -), 3.7V (B1), 7.4V (B2), 11.1V (B3), 14.8V (B +), do not deliberately short circuit!

Note 2: after the need to charge the first line, will have output.

Note 3: 4 groups of batteries in series, please ensure that the voltage of each group of batteries, if not the same, please fill each battery separately and then used in series. Discharge test, the voltage drop is fast that group of batteries is poor battery.

 

(2 good battery + 2 poor battery use effect = 4 poor battery use effect).
(2 good battery +2 poor battery use effect = 4 poor battery use effect).

 

Model: HX-4S-D20
overcharge voltage range: 4.25-4.35v ± 0.05v

Size: 35 * 35 * 3.6mm
Over discharge voltage range: 2.3-3.0v ± 0.05v

Upper working current: 10A
Operating temperature: -40 --- +50 ℃

Upper limit instantaneous current: 20A
Storage conditions: -40-- +80 ℃

Quiescent current: less than 30uA
Effective life: more than 50,000 hours

Internal resistance: less than 100mΩ
Short circuit protection: can be protected, need to charge recovery

Charging voltage 16.8V-17V

The protection board size is 35 * 35 * 3.0mm;
components for the S-8254AA protection chip and D403 * 4

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