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4S 40A 14.8/16.8V Lithium Battery Charger Protection BMS Board Li-ion Module

 
Description
100% Brand New and High Quality
The protection board uses a mature 4 string dedicated lithium battery protection chip, with high integration, high sensitivity characteristics, through the detection of the battery voltage, charge and discharge current and ambient temperature and other information on the battery overcharge, over discharge , Discharge over-current, short circuit, charge over-current, temperature protection and other real-time protection, but also through the external circuit to achieve the adjustment of the parameters.
4 packs 14.8V 16V 16.8V 18650 lithium battery protection board. This product is used for 4pcs 18650 lithium battery in series; charging current 1-2A; Suitable for Electric tools, hand drill, lithium drill.
Wiring sequence: B-, B1, B2, B3, B+ ;  P+ is charge/discharge positive. P- is discharge negative . C- is charge negative. 
 
Parameter:
Num Name Specification Value
1 Voltage Charge voltage 16.8V
Single charge voltage 4.2V
2 Current Continuous discharge current 0-18A
3 Overcharge protection Overcharge single section detection voltage 4.2±0.05V
Overcharge protection delay 1S
Overcharge charge recovery voltage 4.13±0.05V
Overcharge protection release delay 20mS
4 Over discharge protection Over discharge single section test voltage 2.8V
Over-discharge protection delay 1S
Single over-discharge recovery voltage 3.0V
Over discharge protection release delay 20mS
5 Overcurrent protection Overcurrent detection voltage 0.1V
Overcurrent detection current 32±3A
Overcurrent detection delay 300mS±100mS
Recovery state Automatic recovery
6 Short circuit protection With or without short circuit protection Yes
Short circuit detection delay 20mS
Short circuit detection voltage 0.8V
Recovery state Automatic recovery after Cut off Load
7 Temperature protection Over temperature protection temperature 70±5℃
Over temperature recovery temperature 60±5℃
8 Power consumption Working state 20uA (25℃)
Sleep state 6uA(25℃)
10 Internal resistance Discharge circuit resistance ≤30±5mΩ
11 Size Length * Width 34mm*34mm
 
Package Included:
1PC*4S Battery Charging Protection Board
1. We Ship to Worldwide
2. We ship your orders within 1-2 business days after the payment cleared.
3. Item shipped from China via china Post Airmail, reach most of the countries within 2 to 4 weeks.
4. Delivery time depends on destination and other factors, it may takes up to 20 days. If you don't receive
the item after 30 days,please keep in touch with us, we'll investigate and solve the delivery problem.
5. Import duties, taxes, and charges are not included in the item price or shipping cost. These charges
are the buyer's responsibility. Please check with your country's customs office to determine what these
additional costs will be prior to bidding or buying.
 
ShenZhen

1. We accept PAYPAL only.
2. Payment must be made within 7 days of auction closing (Unpaid dispute will automatically open when item
is not paid in 7 days).
3. PLEASE NOTE: SHIPPING&HANDING DOES NOT INCLUDE DUTIES, LOCATL TAXES OR ANY OTHER IMPORTATION FEES.
4. Please list your special requests (color, packages, value of declaration, etc.) in the EBAY NOTES SECTION
when you make payment

 

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condition when shipped to our customers. If product is defective or damage upon arrival, or wrong
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