4500mah Rechargeable Fishing Finder Battery for Underwater

How big of a battery do I need for a depth finder?

KKmoon® 50M Underwater Fish Finder HD 1200TVL Camera for Ice/Sea

Buy DC12V 4500mah Rechargeable Lithium Battery Box Controller For Underwater Fishing Camera SY-8200 SY-8200C SY-8200D at Aliexpress for . Find more ,

DC12V 4500mah Rechargeable Lithium Battery Box Controller For Underwater Fishing Camera SY-8200 SY-8200C SY-8200D

Eyoyo Underwater Fishing Camera 24 Infrared & White LEDS+7 Inch

Underwater Fishing Camera, Adalov Portable Fish Finder Camera

Eyoyo Underwater Fishing Camera Video Fish Finder

4500mAh Battery Pack for 1000TVL Fish Camera – Eyoyo

Underwater Fishing Video Camera 50ft,okk 7 Color LCD Monitor Fish Finder with 12pcs White LEDs and IP68 Waterproof Camera 1000TVL Cable for Ice, Lake

4500mAh Battery Pack for 1000TVL Fish Camera – Eyoyo