You can also check Humminbird 7700281 GCBK CSB GP1272 Portable AGM Battery and Charger-Color may vary and Raymarine A128 12.1" Multi Function Display/Chirp Sounder with Wi-Fi for a better comparison at Fishfinders.biz.

Yak-Power Fish Package Contents YP-PMC48S Power Port Outlet Power Yak-Power YP-BTP12 Battery Pigtail Features Compatible Power Panel Switching YP-BBK Power Box or (1) Power YP-SAE4 Power (1) YP-BTP12 Terminal installation Description Our Finder Kit has everything need to power your finder. installation Simply mount Port kayak, connect Plug to your fish finder’s power it in and fishing.
If want kit right in.  12v wire Plug-and-play SAE a protective rubber YP-BTP12 Features:  SAE connector to spade connector Ring terminal larger batteries  In-line booted fuse holder  make plug-and-play pushed connecting our own high tolerance, fitting.
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