12.8V 21Ah 4S7P Solar Battery
  • 12.8V 21Ah 4S7P Solar Battery
  • 12.8V 21Ah 4S7P Solar Battery
  • 12.8V 21Ah 4S7P Solar Battery
Electrical Specifications
Nominal Voltage12.8V
Nominal Voltage16.5Ah
Energy211.2Wh
Internal Resistance≤70mΩ
Self Discharge<1% Per Month
Series and Parallel/
Mechanical Specifications
Dimensions (L x W x H)187*84*69mm
Weight2Kg
TerminalMC4 female seat
Case MaterialPVC
IP RatingIP42
Cells26650 – LiFePO4
Discharge Specification
Max Continuous Discharge Current9A
Max Instantaneous Discharge Current/
BMS Discharge Protection Current40A
Overdischarge Protection Voltage8.4V
Overdischarge Recovery Voltage9.2V
Short Circuit Protection600uS
Charge Specifications
Charge Current3.3A
Max Charge Current9A
Charge Voltage14.6V
Overcharge Protection Voltage15V
Overcharge Recovery Voltage14.4V
Equalization Turn-on Voltage/
Temperature Specification
Discharge Temperature-20-60℃
Charge Temperature0-45℃
Storage Temperature-5-45℃
BMS Over Temperature Protection65±5℃
BMS Over Temperature Protection Recovery55±5℃
Communication
Communication 
  
  
Compliance Specification
CertificationUN38.3

0.5c Charging at Different Temperatures

12.8V 21Ah 4S7P Solar Battery

1c Different Temperature Discharge Curve

12.8V 21Ah 4S7P Solar Battery

Cycle Life Diagram of Different Dod (1c Charge 0.5c Release 25℃)

12.8V 21Ah 4S7P Solar Battery

2D Drawing

12.8V 21Ah 4S7P Solar Battery

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    PLB focus on providing lithium ion batteries and 26650 cells and packs, welcome to inquiry.