1. Product Description

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

Product Advantages:

• ^{Supply OEM/ODM and custom service}
• ^{High quality with smart balance function}
• ^{Wholesale price}
• ^{ISO9001/ISO14001/CE/ROHS certificates}
• Fast delivery
• ^{Green product}
• ^{One year warranty}
• ^{Excellent safety performance}
•  ^{Short circuit testing passed}
• ^{Overcharge testing passed}
• ^{Over discharge testing passed}
• ^{Original imported :IC from Japan,MOS from USA,Components from Sumsang.}
•  ^{1.2m drop testing passed}
• ^{100% testing} 
• ^{Support ODM & OEM services} 

 About the battery BMS/PCB/PCM

Function^{_: Detect and protect the battery from over-charge  ,over-dicharge, over-current short-circuit ,temperature detecting protection and auotmatically voltage balance function .}

PCM Specifications  For 48V(15S) LiFepo4 Battery Packs
Model:LWS-24S60A-035C(15S)separate port
No.	Test   item		Criterion
1	Voltage	Charging voltage	DC:54V  3.6/Cell
		Balance voltage for single cell	3.60±0.025V
2	Current	Balance current for single cell	72±10mA
		Current consumption	≤20μA
		Maximal continuous charging current	20A
		Maximal continuous Discharging current	80A
3	Over charge Protection	Over charge detection voltage for single cell	3.90±0.025V
		Over charge detection delay time	0.5S-2S
		Over charge release voltage for single cell	3.80±0.025V
4	Over discharge protection	Over discharge detection voltage for single cell	2.00±0.05V
		Over discharge detection delay time	10mS-200mS
		Over discharge release voltage for single cell	2.50±0.05V
5	Over current protection	Over current detection voltage	0.62V
		Over current detection current	200±50A
		Detection delay time	5ms-15ms
		Release condition	Cut load
6	Short protection	Detection condition	Exterior short circuit
		Detection delay time	200-500us
		Release condition	Cut load
7	Resistance	Protection  circuitry(MOSFET)	≤20mΩ
8	Temperature	Operating Temperature Range	-40~+85ºC
		Storage Temperature Range	-40~+125ºC

4. FAQ

Q:  How many Ampere protection circuit boards should choose?

A: It depends on your load power such as electric motor power please contact the sales or technical support before buying.

Q:  What is the distinction between same port wiring and different port wiring?

A: The cathode of charger and load is different for different port wiring , the cathode of charger and load is same for same port wiring and the charging current is equal to the discharge current. 

Q:  What is the distinction between balance and unbalance function?

A: Equilibrium function is that high voltage cells will be discharged with resistor, waiting for the low voltage cells , to achieve the each cell voltage is consistent , to improve the battery performance for the whole group.

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 is per your requirements,Also ODM / OEM is welcome.

Q:  What is your term of payment?

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

Any further questions, Welcome to contact our sales person by sending inquiry .
Your satisfaction is our pleasure.  Let's Join hands for mutual Benefits!