lithium battery management system pcb pcm board 3s 4s 12v standy power supplier bms li ion 4a with balance function
1.True lithum battery pack BMS factory
2.Supply OEM/ODM and custom service
3.High quality with smart balance function
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 .
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!
Shenzhen Li-ion Battery Bodyguard Technology Co.,Ltd. is a collection of digital (single class), multi-cell power
BMS lithium battery protection board the R & D, production, sales and service of high-tech enterprises. The factory
was set up in the Industrial Zone, LongHua San Wei Third Industrial Zone, a beautiful environment, convenient
transportation, welcome new and old customers come to visit.
The company has developed a multi-string lithium battery pack protection board, power lithium battery packs
balanced protection board and LiFePO4 battery pack the balanced protection board nearly models, product
specifications covering the battery assembly in series 2-24 string, working current up to 100A protection of the
battery management system, the company's complete product specifications can also be customized according
The company's products are widely used in mobile phone batteries, laptop battery, Tablet PC battery, power tools
battery, batteries for electric bikes, electric bus battery, golf cart batteries, and other digital products, spare power
supply, etc., product market involves digital products, power in areas such as automotive, energy storage devices
,medical equipment and mobile lighting.
We guarantee the product from us with a 12 months warranty against defects in quality, but we are not respon
sible for buyers' mistake or wrong handling, our product must be maintained in proper way. If Item is defective
and not working on arrival, please report the item to us within 7 days of receiving the defective product so we
can issue a RMA.
Please contact us to request a return authorization. Please include your name, auction number, and reason for
return when you contact us. All items returned must contain all original packaging materials. Please carefully
repack the item.Items returned will be tested and if found defective, the buyer will be shipped a new replacement
unit immediately. In the event that a suitable replacement is not available a refund will be issued.
The return shipment cost should be afforded by buyer if you can not accept our policy ,please do not buy the item
from us ,fair deal is importable for both of us .
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?