Humminbird 770033-1 20Ah Lithium Battery Kit

Number of Batteries: 1 Lithium Ion batteries required. (included)
Battery Cell Composition: Lithium
Unit Count: 1.0 Count
Reusability: Rechargeable

Replacement 20AH lithium battery for portable and ICE fishing systems
Dual USB Ports: Keep your electronics charged and power accessories while out on the ICE
LED Battery Level Indicator: Always know how much charge is in your battery
1-year limited warranty