How Long Can Car Battery Charge Phone. Slow discharging recharging. If your car allows demands the key to enabling charging your phone you can surely charge.
All batteries if left untended very slowly discharge from 124 volts. This of course is under the assumption that your car battery is relatively new and healthy. Typically a 10 amp battery charger will take approximately four to 11 hours to fully charge your cars battery.
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You can even do 45 75 or others. If your car allows demands the key to enabling charging your phone you can surely charge. Basically a car battery is about 50-60 Amp-hours thats 720 Watt hours of stored energy. Charging your battery with a four amp charger will take about 12 hours to get a full charge.
