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The Renogy RNG-BATT-LFP-12-50-US is a 12-volt 50Ah lithium iron phosphate (LiFePO4) battery in a compact black case. LiFePO4 chemistry gives it a long cycle life, flat voltage under load and no maintenance, unlike flooded lead-acid. At roughly 14.8 lb it is far lighter than a comparable lead-acid block, which suits trolling motors, small solar setups, campers and backup power. It sits below Renogy's larger 100Ah packs in capacity, so it fits light, short-run loads better than whole-home backup.
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Lowest price we've seen: $449.99 on Nov 13 at Renogy. Tracked across 1 store since Nov 13.
Owners of Renogy's LiFePO4 line generally report solid build and steady output, and many praise the weight saving over lead-acid. Some note that capacity is modest for power-hungry gear and that charging needs the right lithium profile.
It has a black case.
