FF battery advice - Kayak Fishing Adventures on Big Water’s Edge

RockyRaab · 11-17-2015, 08:27 AM

Any RV store, farm supply, or WallyWorld will have small, sealed 12 batteries. Look up what the "draw" is on your fishfinder, and divide the battery capacity by that to get the approximate number of hours the battery will last. Most FFs draw less than one amp, usually a lot less. So even a 7Ah battery will last all day and then some.

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11-17-2015, 08:27 AM	#4
RockyRaab Senior Member Join Date: Mar 2012 Location: Utah Posts: 138	Any RV store, farm supply, or WallyWorld will have small, sealed 12 batteries. Look up what the "draw" is on your fishfinder, and divide the battery capacity by that to get the approximate number of hours the battery will last. Most FFs draw less than one amp, usually a lot less. So even a 7Ah battery will last all day and then some.