LWS 13s 48V 30A/40A/50A Lithium Battery Protection Board For Electric Vehicle E Bike BMS

LWS 13s 48V 30A/40A/50A Lithium Battery Protection Board For Electric Vehicle E-Bike BMS

Function: Detect and protect the battery from over-charge  ,over-dicharge, over-current short-circuit temperature detecting protection  and auotmatically voltage balance function . Build 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.Please consult the salesman for specific parameters.

Product Description:

the protection plate is a semi-finished product, which needs to be used in combination with the battery. Before use, please make sure that the battery is in good consistency (internal resistance voltage multiplying ratio). This product contains technical knowledge. Once installed incorrectly, it will lead to board burning, tube bursting and other situations. Please explain in detail before installation. Novice buyers should install it under the technical guidance.

Wiring diagram 

1. The wiring must be in the form of low to high analogy, starting from the black line of the cable (0V) and increasing voltage. If the connection sequence is wrong, the wrong voltage will double. If the balance is turned on, the balance will burn out. The light one can be repaired, and the serious one will be scrapped directly.

2. The voltage of all batteries must be the same, and there should be no one cell voltage deviation , so as to avoid returning the batteries

Shenzhen Li-ion Battery Bodyguard Technology Co.,Ltd was founded in 2013.Mainly provide Battery PCM & BMS for Lithium ion ,Lifepo4 ,LTO battery pack.

Since 2013, the company has more than 400 types of hardware PCM/BMS,and software BMS including  HDQ/12C/SMBUS/RS482/RS232 compatible with bluetooth module and so on.

Mainly covers battery assembly 1S-35S in series ,working current up to 350A;the products are widely used in solar street lamp,golf ,LED light,power tool,electric bicycle,medical equipment,EV application......etc. 

*Complete products contract PCB assembly and manufacturing services

*Circuir boards 2 to 30 layers PCB layout,fabrication, PCB assembly and box build

*Active and passive components source is directly from original manufacturer

*Enclosure cabinet case plastic injection molding,mental stamping,manufacture and assembly

*High-precision 0201 size components SMT technology and lead-free

*IC pre-program

*Hight-precision E-Testing

 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 fun

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,Western Union

Meet us , Meet reliablility ,Meet our mutual devolpment !