200A 250A Smart Bms 4S LiFePO4 With UART, BlueTooth, RS485 CAN, functions For 4S 12V LiFePO4 Battery

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. Dustproof, shockproof, anti-squeezing, and other protective functions
4. Complete overcharge, over-discharge, over current, short circuit, and equalization functions

FULL INTELLIGENT FUNCTION

PRODUCT PARAMETERS

(4S 200A-250A)

No	Description		Specification		Remarks
1	Discharge	Continue discharge current	200A	250A
2	Charge	Charge voltage	14.6V
		Charge current	100A	125A
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	300±30A	375±38A
		Over Charge current detect delay	1S
		Over Charge current protection release condition	Off load
7	Discharge over current protection	Discharge over current protection current	300±30A	375±38A	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 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/ BT/CAN/RS485 Customization Option
11	Inner Resistance	Main Circuit Conduct Inner resistance	<20mΩ
12	Self Consumption	Working current	20mA
		Sleeping current	800uA
13	Working Temp	Temp range	-20~70℃
14	Storing Temp1	Temp range	-40~80℃

BMS WIRE DIAGRAM

Precautions for smart BMS:

1. The connection sequence of the smart BMS

The wiring sequence of the cable is the same as the hardware board. After confirming that the cable is soldered correctly, and the accessories that come with the product (such as: temperature control standard/power board option/Bluetooth option/GPS option/display option/custom communication Interface optional)
Install on the BMS, and then plug the cable into the BMS socket; the blue B-wire on the BMS is connected to the total negative electrode of the battery, and the black P-wire is connected to the negative electrode of the charge and discharge.

2. The BMS needs to be activated for the first use

Method 1: Activate the Power display panel, there is an activation button on the Power display panel.
Method 2: Charge activation.
Three, parameter modification
The number of strings of the BMS and the BMS parameters (Li-ion BMS, LiFePO4 BMS, LTO BMS) have default values when they leave the factory, but the capacity of the battery pack needs to be set according to the actual capacity AH of the battery pack. If the capacity AH is not correct Set, the percentage of remaining power will be inaccurate. Other protection parameters can also be set according to the customer's needs (It is not recommended to modify the parameters casually).

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