• Small Board 14.8V BMS 4s4a Li-ion LiFePO4 18650 Battery PCM
  • Small Board 14.8V BMS 4s4a Li-ion LiFePO4 18650 Battery PCM
  • Small Board 14.8V BMS 4s4a Li-ion LiFePO4 18650 Battery PCM
  • Small Board 14.8V BMS 4s4a Li-ion LiFePO4 18650 Battery PCM
  • Small Board 14.8V BMS 4s4a Li-ion LiFePO4 18650 Battery PCM
  • Small Board 14.8V BMS 4s4a Li-ion LiFePO4 18650 Battery PCM

Small Board 14.8V BMS 4s4a Li-ion LiFePO4 18650 Battery PCM

Overcharge Protection: Yes
Ovediscahrge Protection: Yes
Over Current Protection: Yes
Balance Function: No
Usage: Lithium Battery Packs, LiFePO4 etc
Application: Digital Equipment, Electrice, Ebike, etc
Samples:
US$ 1.32/Piece 1 Piece(Min.Order)
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Customization:

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Basic Info.

Model NO.
LWS-4S4A-025
Delivery Time
7-15 Days After Payment for Small Order
Metal Coating
Copper
Mode of Production
SMT
Layers
Multilayer
Base Material
FR-4
Certification
RoHS, ISO
Customized
Customized
Condition
New
Transport Package
in: Vacuum Packing/out: Packing: Carton Packing
Specification
36*35.5*3
Trademark
lws
Origin
Shenzhen, Guangdong
HS Code
8536300000
Production Capacity
10000/Month

Product Description

BMS 1S-4S 4A li ion Lifepo4 battery pcm for battey pack

Advantages

1.True lithum battery pack BMS factory

2.Supply OEM/ODM and custom service

3.High quality with smart balance function

4.Wholesale price

5.Environment

5.ISO9001/ISO14001/CE/ROHS certificates

6.Fast delivery

About the battery BMS

Function: Detect and protect the battery from over-charge  ,over-dicharge, over-current short-circuit ,temperature detecting protection  and auotmatically voltage balance function .
with high end electronic components (High End IC and MOSFET ) ,simple structure design will let it have more stable quality working performance , Flexible application ( it can be used for less series battery by leaving some connection pins at empty status ),full set of protection measures let it works well without any infulence from external unexpected accidents.

About your products,just tell us the relative voltage/ cells/ current A or equipment etc,we will help to recomment the most suitable products for you. or we design for you!

Product specification

Small Board 14.8V BMS 4s4a Li-ion LiFePO4 18650 Battery PCM

 
PCM Specifications  For 14.8V (4SLi-ion Battery Packs
LWS-4S3A-362(4S)
No. Test   item Criterion
1 Voltage Charging voltage DC:16.8V  CC/CV
Balance voltage for single cell /
2 Current Balance current for single cell /
Current consumption  20μA
Maximal continuous charging current 3A
Maximal continuous Discharging current 3A
3 Over charge Protection Over charge detection voltage for single cell 4.25±0.025V
Over charge detection delay time 0.5S-1.5S
Over charge release voltage for single cell 4.05±0.05V
4 Over discharge protection Over discharge detection voltage for single cell 2.70±0.062V
Over discharge detection delay time 10mS-150mS
Over discharge release voltage for single cell 3.00±0.1V
5 Over current protection Over current detection voltage 0.1±0.025V
Over current detection current 13±2A
Detection delay time   5ms-15ms
Release condition cut load and recharge
6 Short protection Detection condition Exterior short circuit
Detection delay time 200-500us
Release condition cut load and recharge
7 Resistance Protection  circuitry(MOSFET) ≤50mΩ
8 Temperature Operating Temperature Range -40~+65ºC
Storage Temperature Range -40~+125ºC

Other products :
Small Board 14.8V BMS 4s4a Li-ion LiFePO4 18650 Battery PCM
Small Board 14.8V BMS 4s4a Li-ion LiFePO4 18650 Battery PCM
Small Board 14.8V BMS 4s4a Li-ion LiFePO4 18650 Battery PCM
Small Board 14.8V BMS 4s4a Li-ion LiFePO4 18650 Battery PCM






Packing and shipping
Small Board 14.8V BMS 4s4a Li-ion LiFePO4 18650 Battery PCM

Certfications

Small Board 14.8V BMS 4s4a Li-ion LiFePO4 18650 Battery PCM

Factory

Small Board 14.8V BMS 4s4a Li-ion LiFePO4 18650 Battery PCM Small Board 14.8V BMS 4s4a Li-ion LiFePO4 18650 Battery PCM

 
FAQ

Q: How do I judge what material my battery is ?


A: Please take a look at the battery body.if the normal voltage of your battery shows as 3.2V,the battery will be

LiFePo4.If the normal voltage of your battery shows as 3.6V or 3.7V, the battery will be Li-ion or Li-polymer battery. you can also ask battery manufacturer the material of battery.

Q: Can I use this protection circuit board for my battery?

A: Can use this protection circuit board, or not?

There are 2 questions:How much cells in series is your battery pack?
The protection circuit board you need to buy must be same cells in series as your battery pack.

What material is your battery?
Only the LiFePo4 battery has different electric parameter from other battery, so if you need buy the protection circuit board for LiFePo4 battery , Please let us know firstly.

Q: Do we need cell balance or not?

A: The function of balance : Since battery is made of many pcs of cells in parallel and in series, the cells can't be

the same as no two people in the world is the same , so can only put in group with similar performance is not

consistent , which will lead to each cell voltage is not consistent as well after the completion of the charging if

without balance function

Q: Do you have Minimum Order Requirement (MOQ)?

A: No, We don't have MOQ, Different customer have different requirement ,We can provide various capacity and size as per your requirements,Also ODM / OEM is welcome.

Q: What is your term of payment?

A: PayPal, T/T, L/C,Western Union

More question can contact :

May Liu  Mob:+86 15225686625 
Tel:0755-29407599    Fax:0755-29407499

 Web: https://lws-pcm.en.made-in-china.com    http://lws-pcm.en.made-in-china.com

 

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