Kayak fishing fish finder battery made from portable car jump starter.

We assemble a DIY kayak fishing fish finder battery out of a car battery jump starter.

My current fish finder - Garmin ECHOMAP Plus 64cv --- https://amzn.to/36GvwuT

DBPOWER 600A 18000mAh Portable Car Jump Starter --- https://amzn.to/2Ju9mT0

OliYin 2 Pairs EC5 5.0mm Male Female Banana Connector with 12awg Silicone Wire 3.93 inch RC Hobby Lipo Battery(Pack of 2) --- https://amzn.to/2YiwJmB

Uxcell a12110200ux0689 Waterproof Connector Cable Gland --- https://amzn.to/2DYMKGU

LEDJump 18AWG Wire Gauge Male Female Plug 2 Pin LED Waterproof Connector Cable --- https://amzn.to/2E1J9HR

INNOVA 3320 Auto-Ranging Digital Multimeter --- https://amzn.to/2YlBM66

Monoprice Weatherproof/Shockproof Hard Case - Black IP67 Level dust and Water Protection up to 1 Meter Depth with Customizable Foam, 8 x 7 x 6 in (2.88 liter cube) --- https://amzn.to/2LH3WqK

Hopkins 47965 2-Pole Flat Extension --- https://amzn.to/2VbFKfB