VEMDIA
A house battery stores power for lights, pumps and electronics when you are not plugged in. If you always camp with hookups and already have a healthy battery, you may not need another.
RV, van and boat owners who run 12V systems.
Size given in the listing: 12.9 x 6.7 inches; Weight given: 24 lbs. Confirm on the Amazon listing before you buy.
12V 100Ah LiFePO4 Lithium Battery Group 31 Deep Cycle for RV Trolling Motor (ASIN B0FP525PFP). Amazon's page has the current price, specs and reviews.
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Check current Amazon listing (ASIN B0FP525PFP).
Fine print: The Dude has not personally tested this product. The details on this page come from the Amazon listing and can change; check the listing for the current specs, price and availability.