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Product Description

 
100% Brand New and High Quality
 
Applicable to the following products:
Low power inverter, massager battery pack, LED light standby power supply, electronic products, solar street lamp battery pack, monitor backup power supply, and other products.
 
Note:
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 customers!
 
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 the use of the battery will heat is the battery does not apply, this situation must not be long-term use, the battery will soon be damaged.
 
Note 1: strictly according to Figure wiring 0V (B-), 3.7V (B1), 7.4V (B2), 11.1V (B3), 14.18 (B+) do not deliberately short circuit!
Note 2: after the need to charge the first line, will have output.
Note 3: When connecting 4 packs of batteries, please ensure that the voltage of each group of batteries, if not the same, please fill each battery separately and then use in series. Discharge test, the voltage drop is fast that group of batteries is poor battery.
 
For some of the poor electronic base of the customer to explain: Do not put the good battery and poor battery mixed with the use of three groups of battery capacity / resistance closer to the better! (2 good battery +2 a poor battery use effect = 4 poor battery use effect).
 
The lithium battery protection board properties:
Model: HX-4S-D20
Size: 35 * 35 * 3.6mm
Overcharge voltage range: 4.25-4.35v ± 0.05v
Overpressure voltage range: 2.3-3.0v ± 0.05v
Upper working current: 10A
Upper limit instantaneous current: 20A
Operating temperature: -40 --- +50 ℃
Storage conditions: -40-- +80 ℃
Quiescent current: less than 30uA
Internal resistance: less than 100mΩ
Short circuit protection: protection, delay self-recovery.
Effective life: more than 30,000 hours
 
Protection board devices: S-8254AA protection chip and D403 * 4;
 
Note: The main picture shows the nickel and accessories, the default shipping is not included, the shipping is a single board.
 
Note: As the use of the current limiting resistor is large, the combination of the battery output as far as possible not to short-circuit, especially large-capacity high-current battery pack, short circuit may damage the board, please pay attention, thank you.
 
Package Included:
1 x 4 string 14.8V 20A 18650 lithium battery protection board  
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