A jump starter stores enough energy to get a car with a flat battery running without a second car. When choosing, look at the cranking current in amps and the capacity in watt-hours: Lokithor models at 2500–5000 A handle larger engines too, while smaller BlitzWolf devices of 16,000–20,000 mAh suit an ordinary petrol car. Some units are multi-purpose — power bank, torch, compressor and pressure washer in one body. In winter, cold tolerance counts as well: some models are rated to work down to -40 °C.
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A jump starter stores enough energy to get a car with a flat battery running without a second car. When choosing, look at the cranking current in amps and the capacity in watt-hours: Lokithor models at 2500–5000 A handle larger engines too, while smaller BlitzWolf devices of 16,000–20,000 mAh suit an ordinary petrol car. Some units are multi-purpose — power bank, torch, compressor and pressure washer in one body. In winter, cold tolerance counts as well: some models are rated to work down to -40 °C.