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The DJLBERMPW Mini is a 12V 100Ah lithium iron phosphate (LiFePO4) battery built in a compact case, aimed at deep-cycle jobs like trolling motors, RVs, solar setups and backup power. It weighs roughly a third of an equivalent lead-acid battery and packs a built-in 100A BMS with overcharge, over-discharge, over-current and short-circuit protection. DJLBERMPW claims 4,000 to 15,000 cycles and up to a 10-year life. Against better-known LiFePO4 brands it competes on size and weight rather than proven track record, and its small review base means long-term durability is still unproven.
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Lowest price we've seen: $62.99 on Nov 14 at JR'S Western Wear. Tracked across 5 stores since Nov 14.
Ratings are strong at 4.5 out of 5, but they come from only 18 buyers, so the picture is thin. Owners mostly report it works as a compact, light deep-cycle battery; there is not enough feedback yet to judge how it holds up over years.
This is a mini 12V 100Ah LiFePO4 (lithium iron phosphate) battery. It is smaller and lighter than a lead-acid battery of the same capacity, at only 1/3 of the weight.
A built-in 100A BMS protection board guards against overcharge, over-discharge, over-current and short circuits. The battery has a higher energy density and stable performance. Its life is up to 10 years, with 4000 to 15000 cycles.
It can be used for marine and boat applications, trolling motors, RVs, electric vehicles, golf carts, solar systems, kayaks and backup power.
