3S-8S 25A BMS

BMS8 is a high efficiency wide input voltage BMS, the device can detect and monitor 3S to 8S LiPo and LiFePO4 cells voltage and charge or discharge current, battery temperature in a smaller size.

Features

• Detect and display pack voltage, difference of cell voltage and temperature, each cell voltage by microprocessor, 100% calibration before delivery make sure the high accuracy. 
• Over Voltage protection during charge, BMS8 will cut off charge and sound warning by beeper 
• Under Voltage protection during discharge, BMS8 will cut off discharge and sound warning by beeper 
• Over temperature protection during charge or discharge, BMS8 will cut off charge or discharge and sound warning by beeper 
• Over current and short circuit protection,  
• Cut off discharge when 25A to 100A discharge current for different continuous time. It means the e-scooter don’t lose power under 100A, such as the e-Scooter can be powered at 40A for 1 second at least, and cut off, then resume automatically. 
• 100A or more when short circuit, cut off discharge automatically and resume 10 seconds later. 
• Dual protection by program and hardware, more reliable. 
• Low Quiescent current design, BMS8 draw current from all cells to keep the cell voltage balanced and minimize the power consumption in stand-by. 
• AL alloy case 
• Approved by CE 
• 12 months warranty 

Specification                                                                          

• Battery Types: LiPo and LiFe cells 
• Cells Count :  3S - 8S 
• Maximal Voltage on P+ and P-: 35V 
• Maximal Voltage on B+ and B-: max. 35V 
• Charge Current: up to 25A 
• Discharge current: 0~25A continue, 100A burst 
• Current drain for balancing: 300mA/cell. 
• Balance accuracy: <10mV 
• Over Charge Protection Voltage: 4.20V/cell (LiPo), 3.75V/cell(LiFe)  
• Over Charge Release Voltage: 4.15V/cell (LiPo), 3.45V/cell(LiFe) 
• Over Discharge Protection Voltage: 3.0V/cell (LiPo), 2.0V/cell(LiFe) 
• Over Discharge Release Voltage: 3.3V/cell (LiPo), 2.30V/cell(LiFe) 
• Over temperature Protection: 85℃,50℃ resume automatically 
• Voltage display resolution: 0.001V  
• Voltage Detection precision: 0.005V 
• Compact size: 115 x 68 x 15mm, or 4.52” x 2.67” x 0.59” 
• Weight:150g 
• Case : Aluminum Alloy 
  

Manual

BMS8 manual