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Wisconsin | I've had the 4000 for two years, it was around $100. It will start any gas engine without any battery, it won't start an old diesel on it's own, but makes a big difference. I keep it half charged, and try to use it relatively soon after fully charging, and it's lasted longer than I was afraid of. A charge will last many jumps, I do watch to keep it from getting low, never jump with two bars, can use it for a phone charger etc with lower bars, but fully charge before jumping. | |
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