Absolutely not. You cannot use the booster cap on a battery that is completely discharged. What you can do is recharge the booster pack with a friend's battery or via his cigarette lighter output. Then try starting your car with the recharged booster pack.
0 volts on battery will it still charge capacitors starting voltage? Print
Modified on: Tue, 20 Oct, 2020 at 2:29 PM
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