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Jiabaida BMS

JBD Smart BMS 8~21S 8S 16S 80A 100A 120A 150A 200A Lifepo4 & Li-ion Lithium Battery PCB with Balance NTC & Uart Bluetooth RS485 CAN for EV

Regular price $76.30 USD
Regular price $83.01 USD Sale price $76.30 USD
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AP21S004 Smart bms

Quick Details
Model Number: AP21S004
Type: bms pcba
Place of Origin: Guangdong, China
Supplier Type: manufacturer 
Copper Thickness: 2 OZ
Brand name: JBD
Product name: BMS
Current: 150A/200A
Strings: 6-21S
Voltage: 24V/36V/48V/60V/72V
Port: Common port with balance function 
Communication: UART/BT/RS485/CAN communication 
Usage: Lifepo4 /LI-ION
Size: 202mm*76mm*18mm

Packaging & Delivery

Selling Units:  Single Item
Single Package Size: 23*13*16cm
Single Gross Weight: 1.500 kg
Package Type: Manufacturers will upgrade the packaging sometimes, please refer to the actual object received.
Package Content : 1* BMS *Balance wires* Bluetooth Module
Reminder: UART/RS485/CAN communication box should be purchased seperately



JBD-AP21S004 is a software BMS scheme specially designed for 8-21 strings of lithium battery packs such as electric motorcycles, small three-wheels, small four-wheels, etc. It can be applied to lithium batteries with different chemical properties, such as lithium ion, lithium polymer, and iron phosphate. Lithium etc.  The product adopts architecture of front-end acquisition chip and MCU. The part of protection parameters can be flexibly adjusted through the upper computer according to customer needs.

●The battery is intelligently balanced, and the balanced opening voltage and pressure difference can be flexibly adjusted by the host computer. Optional charge balance or static balance. Through time-sharing equalization, the maximum equalization current can reach 200mA.                                                                                                           

● Integrate hardware protection functions such as overvoltage, undervoltage, overcurrent, and short circuit.                                                                                        

 ● Multiple working modes, when the protection board is in a static state, it can delay to enter dormancy to achieve the purpose of reducing power consumption.       

 ●The default three-channel temperature detection probe, one channel detects the internal temperature of the protection board, and the two channels are placed in the place where the temperature needs to be detected according to customer needs.     


Customer Reviews

Based on 43 reviews
Piotr N
JBD Smart BMS 8~21S 120A

Very nice and with great BMS capabilities (bluetooth included, passive balancing, very nice app for IOS, cabling), solid workmanship and strong high-current terminals, fast contact and shipping. I definitely recommend it!

Bob Snyder
I use many other JBD bms's

I think JBD makes the best bms's period! I did have 1 fail but was replaced no questions asked. The android app programs easily, functions well, works without errors & looks good. This latest 6-21s bms was a bit of a chore to figure out how to wire until I found the wiring diagram that took me a bit to find. This is a different bms than the the others I have but their app works the same on any model it appears. JBD has been a pretty reliable brand & all I'll use.

Akeem Batz

Fast delivery. Top Bms. Gladly again

Willard Harber

Already ordered 2x, recommended item

Dawn Gusikowski

Already ordered 2x, recommended item