4S 12V 100A LiFePO4 Battery BMS With UART

Battery Management System

Smart 4S 12V 100A LiFePO4 Battery high current BMS for Electric scooters, bicyles, motor cycles and Tricycles

Individual pricing for large scale projects and wholesale demands is available.

Mobile/WhatsApp/Wechat: +86 156 0637 1958
Email: info@evlithium.com

Product Summary

1. Professional high current wiring design & workmanship, thus can withstand the shock of high current
2. Using fully enclosed heat-dissipating glue and a double-sided heat dissipation design, heat is dissipated in time, and the heat dissipation effect is better than others.
3. BMS Lifepo4 4s 100a 12v has Dustproof, shockproof, anti-squeezing, and other protective functions4. Complete overcharge, over-discharge, over current, short circuit, and equalization functions

Electrical Parameters

No	Description		Specification	Remarks
1	Discharge	Continue discharge current	100A
2	Charge	Charge voltage	14.6V
2	Charge	Charge current	50A
3	Over charge protection	Over charge detect voltage	3.75±0.05V
		Over charge protection delay	1S
		Over charge release voltage	3.65±0.05V
4	Balance	Balance detect voltage	3.2V
		Balance current	30±5mA
		Balance opening condition	1. On a charge 2. Achieve balance detect voltage 3. Achieve 50mv
5	Over discharge protection	Over discharge detect	2.2±0.01V
		Over discharge detect delay	1S
		Over discharge release voltage	2.3±0.01V
6	Charging over current protection	Charging over current protection current	150±15A
		Over Charge current detect delay	1S
		Over Charge current protection release condition	Off load
7	Discharge over current protection	Discharge over current protection current	150±15A	Can set as required
		Over discharge current detect delay	1S	Can set as required
		Over discharge current protection release condition	Off load
8	Short Circuit protection	Short Circuit protection condition	Short circuit of external load
		Short circuit detect delay	320uS
		Short circuit protection release	Off load
9	Temp Protect	Charge Temperature protection degrees	-40~65℃	Recover-35℃ Recover 60℃
		discharge Temperature protection degrees	-40~70℃	Recover-35℃ Recover 65℃
		Release Condition of temperature protection	Recovery temperature reached and load disconnected
10	Means of communication	UART
11	Inner Resistance	Main Circuit Conduct Inner resistance	<20mΩ
12	Self Consumption	Working current	20mA
12	Self Consumption	Sleeping current	800uA
13	Working Temp	Temp range	-20~70℃
14	Storing Temp1	Temp range	-40~80℃

BMS wiring Connection

bms lifepo4 4s 100a 12v Product picture

Interface definition: interface faces forward towards itself, with the 1P on the right being the 1st foot

Interface	Function	PIN	Description	Remark
Battery acquisition equalizer interface	B00	1	Battery Total Negative	5pin
	B01	2	Battery positive electrode 1
		3	Battery positive electrode 2
		4	Battery positive electrode 3
	……	……	……
	……	……	The last positive pole of the battery
Temperature sensor input port	T1	1	1# Temperature Line	Standard
	GND	2	Common Temperature Line
	T2	3	2# Temperature Line
UART interface	GND	1	GND
	3.3V	2	Bluetooth module power supply 3.3 V
	12V	3	Power supply 15 V GPS module
	NC	4	/
	TX	5	Bluetooth communication Sending end
	RX	56	Bluetooth communication Receiving end
485 interface	485T_B	1	485 Communications B	Optional
		2	485 Communications A
	AGND	3	GND
	/	4
	/	5
Monitor	GND	1	GND	Standard
	RX	2	Monitor Receiving end
	TX	3	Monitor Sending end
Key switch	KEY	1	key switch	Optional
Key switch	GND	2	GND
Reserve the DIO interface	GND	1	GND	Optional
Reserve the DIO interface	DI0	2	Switching signal