Features: 
Voltage: 16.8v / 21.6v 
Over-discharge recovery voltage: 2.90v ± 0.08v 
Maximum operating current: 10A 
Operating temperature: -40 --- + 50 ℃ 
Maximum instantaneous current: 15A-20A 
Storage conditions: -40-- + 80 ℃ 
Static current: less than 20uA 
Effective life: more than 50,000 hours 
Resistance: less than 30mΩ 
Short circuit protection: protect and automatic recovery 
balanced: No 
Size: 53mm * 18mm * 4mm 


Shipping list:
1 x  5S18.5V 21V 10A 18650 lithium battery protection board