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How Long Do Portable Power Station Batteries Last?
Battery life depends on chemistry, cycle count, depth of discharge, temperature, storage state, and how often the station is used. A cycle rating usually describes the point at which capacity falls to a stated percentage, not sudden failure.
LiFePO4 models are commonly chosen for frequent cycling. Any chemistry lasts longer when kept cool, not stored at 0% for months, and charged according to the manual. Watch for reduced runtime, unexpected shutdowns, swelling, heat, or error codes; stop using damaged equipment and contact the manufacturer.