Skip to product information
1 of 6

Jiabaida BMS

JBD Smart BMS 3S 4S 12V 60~120A Lithium Battery PCB With Passive Balance Uart RS485

Regular price $62.50 USD
Regular price $72.59 USD Sale price $62.50 USD
Sale Sold out
Shipping calculated at checkout.

SP04S020 Smart bms

Quick Details
Model Number: SP04S020
Type: bms pcba
Place of Origin: Guangdong, China
Supplier Type: manufacturer
Brand name: JBD
Product name: BMS
Current: 100A
Voltage: 12V
Same port with balance function: Yes
With UART communication: Yes
with RS485: Yes
Usage: Lifepo4 Battery Pack
Application: Electronic Products
Size: 138*102*18mm

Packaging & Delivery

Selling Units: Single item
Single package size:  23X13X16 cm
Single gross weight: 0.500 kg
Package Type: Manufactuers will upgrade the packaging sometimes,please refer to the actual object received.
Package Content : 1* BMS *Balance wires* Bluetooth Module
Note: UART/RS485 communication box should be purchased seperately

Product Paramenters

Operating voltage range
Operating current (MAX)
Over-charge protection voltage
Over-discharge protection voltage
Balanced turn-on voltage
Charging over current protection value
High temperature protection value of charging
High temperature protection value of discharge
Internal resistance


JBD-SP04S020 is designed by Dongguan jiabaida Electronic Technology Co., Ltd. It is an intelligent protection board scheme specially designed for 4 series battery packs of start-up battery and electric energy storage products.It is suitable for lithium batteries with different chemical properties, such as lithium ion, lithium polymer, lithium iron phosphate, etc.The protection board has strong load carrying capacity and the maximum continuous discharge current can reach 120A.

● 4 cell series protection

● Various protection functions for charging and discharging

● Discharge over current, short circuit protection functional processes of hardware

● Over voltage, under voltage, temperature and overload protection function processing of software 

● Accurate SOC calculation with automatic SOC learning function

● Reserved RS485, CANBUS communication

● UART communication function, can read all data of battery in real time and upgrade online

● Very low static current consumption

● The reserved switch controls the output of protection board