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	Since 2009 year, more than 1,500 items of ER, CR, Lithium polymer , Ultra-thin battery samples were sent to Underwriters Laboratories respectively for the safety test, and got UL certification.

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BMS

LY1109-GM-24S60-Y is Smart PCB for power battery package, manage up to 24 serial connected Li-ion cells, suitable for E-bike, E-motor and other power battery application within 24S cell supply. Intelligent battery management solution to multi-cell battery pack,enable very long life cycle and ultra low heat dissipation by providing accurate cell voltage monitor,high-efficiency active cell balance and self-adaptive management method.

【Features】
(1)perfect system function

• High efficiency active cell balance, up to 200mA balance current
• Up to 60A continuous discharge current
• Intelligent management scenario for max battery capacity / long life-cycle
• Full time balance during charge and discharge
• Accurate cell voltage monitor, ±15mV each cell
• Accurate temperature monitors for high temperature protection
• Fast protection action time
• Automatic protection release when load is removed
• Low leakage power consumption, less than 15mA
• RS232 communication interface, RS232 to USB convertor (optional)
• PC-end user software provides easy data record, parameter configuration and real time monitorfunction.


(2)high detection accuracy

Product Code	LY1109-GM-24S60-Y
Battery Cell Selection	4-24S Li-ion cell, LiFePO4 or LiMn2O4
Balance Method	Active Balancing
Balance Current	0-200mA
Rate Voltage	0-100V
Smart PCB Internal Resistance	Discharge<10mΩ ,Charge<20mΩ

Charge Method	LiFePO4	Whenever one of the cell charge to 3.6V, or one of the cell charge to 3.6V, and charge current less than 2A
	LiMn2O4	Whenever one of the cell charge to 4.3V, or one of the cell charge to 4.2V, and charge current less than 2A
Discharge Current	Rate Current (Adjustable)	0-60A
	Pulse Current (Adjustable)	0-100A
	Pulse Current (continuous time)	0-10S
Over Charge Voltage Protection	Over Charge Protection Voltage (Adjustable)	LiFePO4	Any cell voltage rise to 3.8V±0.05V
		LiMn2O4	Any cell voltage rise to 4.35V±0.05V
	Over Charge Protection Delay	<130 mS
	Over Charge Voltage Protection Release (Adjustable)	LiFePO4	All cell voltage down to 3.5V±0.05V release protection
		LiMn2O4	All cell voltage down to 4.2V±0.05V release protection
Over Discharge Voltage Protection	Over Discharge Protection Voltage (Adjustable)	LiFePO4	Any cell voltage down to 2.4V±0.05V
		LiMn2O4	Any cell voltage down to 3V±0.05V
	Over Discharge Protection Delay	<100 mS



(3)Simple interface