Its 14.8v 2000 mah lithium ion battery Pack with BMS circuit inbuilt.
Use charger of 16.8v 1A/2A to charge this battery. Battery Limiting current is max 10A, Using it over its dischaarge capacity will damage the battery pack.
Charger Should have balance charger with auto cutoff protection and over charge protection. 
 
Warranty - 
6 Months warranty is available with this battery.  Details of warranty policy is available at our “warranty Policy” Page.
 
Battery Specifications -
Cell - 2000mah 18650cells Ester brand
Total no of cell used – 4
Charge Cycle with full Capacity - 1000 aprox
BMS Specification - 4s 10Amps
Maximum Battery Capacity - 2AH or 2000mah
Battery Energy – 29.6wh
Maximum Power Motor you can attach – 70 watts
Maximum discharge current - 10A
Maximum charging current - 2A
Battery standard voltage - 14.8v
Battery full charge voltage – 16.8v Aprox
Battery Low discharge voltage- 12.8v Aprox
 
Package Include-
1 X 14.8v Recheargeable LiOn Battery