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3S 4S 12V Lithium Battery Management System , Lifepo4 BMS 200A

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Shenzhen XUWEN Technology Co.,Ltd

3S 4S 12V Lithium Battery Management System , Lifepo4 BMS 200A

Country/Region	china
City & Province	shenzhen guangdong

Product Details

200A 3S 4S 12V Smart BMS Battery Management System For Li Ion Lifepo4 Battery Pack

This BMS is designed for battery packs for the inverter, electric
bicycles and the electric motorcycles It can be applied to
lithium batteries with different chemical properties, such as
lithium ion, Li-polymer. Lithium iron phosphate, etc. The
protection
board has strong loading capacity and the maximum continuous
discharge current can reach 80A 100A 120A 150A 200A

* 4~24 cell series protection
* Various protection functions for charging and discharging
* Discharge over current, short circuit protection functional
processes of hardware
* reserves the discharging control switch and the position of
discharging temperature protection,
* Very low static current consumption
* Containing charging equalization function

Main function description:
Over-charge protection / Over-discharge protection / Over-current
protection / Temperature protection / Short circuit protection
/Balance function
Advantages:
1. Intelligent and powerful MOS, imported IC, integrated solution.
2. Equipped with temperature sensor, preserved control switch.
3. Factory sales, the more the quantity, the lower the price.
4. Support customization (the size of PCB / the material and length
of balance wires and output line / the replacement of Aluminum
shell material / change parameters / increase function of data
storage ... )

Continuous discharge current	200A
Discharge over current protection	2~3 times of continuous discharge current
Mosfet	<20mΩ
Charge current	200A
Charge voltage	series*3.65V

Over charge protection:	Balance voltage:
Detection voltage: 3.75±0.05V	Start voltage: ≥3.5V
Detection delay time: 500~2000mS	Recovery voltage: <3.5V
Recovery voltage: 3.55±0.05V	Balance current: 120~180mA

Over discharge protection:	Over current protection:
Detection voltage: 2.2±0.1V	Detection current: 2~3 times of continuous discharge current
Detection delay time: 4000~6000mS	Detection delay time: 500~1500mS
Recovery voltage: 2.7±0.1V	Recovery condition: disconnect charger

Short protection:	Temperature protection
Trigger condition: exterior load short circuit	Charge discharge high temperature protection: customized
Detection delay time: 100~400uS
Recovery condition: Take off load

RFQ

1.What is the common port and separate port? what is the difference?
We take 13S 48V 15A BMS as an example, common port 15A means your charge cathode and discharge cathode are connected in the same point end(our P-), charge cathode and discharge cathode are used in the common connection
port, so the charge current and discharge current are the same 15A. while the separate port is separately connected by charge cathode (C-) and discharge cathode (P-), so the charge current and discharge current are different, discharge current 15A, charge current 8A.

2.What is the balance function?
The working principle and function are as followings, when your one cell voltage is upto alarm voltage(Li-ion upto 4.18V, LifePo4 upto (3.6V), then the cell Balance starts to work, balance resistance starts discharge with 35ma(when balance discharge starts to work, BMS will starts a little heat up, which is the normal reflection), the cell is in both charging and discharging status, and others which are not reached to alarm voltage(Li-ion 4.18V, LifePo4 3.6V)are only in charging status, no discharging, when the fast cell voltage is reached to alarm voltage (Li-ion 4.25V, LifePo4 3.75V) BMS starts off power protection, all the other cells are all in stop of charging, this process will enable your battery charging in balance current, and your battery voltage are in balance status, but when your cell voltage difference are in a big range, then balance can not be functionning well

3.The relationship between Battery capacity and BMS current?
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.

4. What type of charger should I choose?
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.

5. What current BMS should I choose ?
Take 10S 36V as an example: what current BMS you choose is relied on your E-bicycle Motor power and current limitation of controller. eg., choose 15A for below 350W, 20A for below 500W, 30A for below 800W, 60A for Below 1000W, higher than 1200W are contact with our service specialist for suggestions, one inall, continue current shall be higher than current limitation in Controller.

6. Whether my BMS damaged?
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.