SPECIFICATIONS

Brand Name: JiaBaiDa

Brand name: JBD

Communication: UART/BT/RS485/CAN communication/LCD display

Copper Thickness: 2 OZ

Current: 80A/100A/120A/150A/200A

Model Number: AP21S004

New features: heating function

Place of Origin: Guangdong, China

Port: Common port with balance function

Product name: BMS

Size: 202mm*76mm*18mm

Strings: 8S-21S

Supplier Type: Manufacturer

Type: bms pcba

Usage: Lifepo4 /LI-ION

Voltage: 24V/36V/48V/60V/72V

JBD-AP21S004

JBD-AP21S004 is a software protection board solution designed specifically for 8-21 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 whole system uses Panasonic's front-end acquisition chip + MCU, and an external communication port. ● 8-21 series battery cell series protection. ●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.

Products Name	Smart BMS
Type	AP21S004
Size	202mm * 76mm * 18mm
Current	80A/100A/120A/150A/200A
Voltage	24V/36V/48V/60V/72V
Communication	UART/BT/RS485/CAN communication/LCD display(Optional)
Strings	8S-21S
Features	Automatic Identify Strings,

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FAQ

Q. What type of charger should I choose?
A. Lithium battery must choose specific charger, do not use Charger for Leadacid battery, for leadacid charger may have MOS with high pressure breakdown protection, which will not protect of BMS over charge. Life Po4 battery charger voltage=battery string No.X3.6V, while Li-ion battery charger voltage=Battery string No.X4.2V.

Q. The relationship between Battery capacity and BMS current?
A. There is no direct relationship between Battery capacity and BMS current, big capacity doesn`t mean a big battery, but rely on continue current, that is to say if your engine is powerful, your should choose high current of BMS, it is not relied on battery capacity.

Q. Whether my BMS damaged?
A. If you want to judge if the BMS is damaged, please take the folowing steps, to test if each cell voltage is the same with
voltmeter? if the cell voltage difference is over 1.0V, the fault is displayed that it cannot run far, no power supply at the
start range, short charge time, all these issues are almost caused by battery cells, if BMS damaged is displyed as no charge, no discharge, no discharge while the battery has voltage.

Q. Are the CANbus ports on these BMS'es "electrically isolated"
A. Yes. Electrical isolation is also electrical isolation. The so-called electrical isolation is to electrically isolate the power
supply from the electrical circuit, that is, to isolate the electrical branch circuit from the entire electrical system, making it
an electrically isolated, independent, ungrounded safety system. In order to prevent the danger of indirect contact with
electricity when the exposed conductor fails and is electrified.