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Did you mean 1 Watt or actually 1 Amp? 1 Watt would be rather modest and shouldn't drain you battery within a week, 1 Amp certainly is another story.
by jhoechtl 5y ago
Did you mean 1 Watt or actually 1 Amp? 1 Watt would be rather modest and shouldn't drain you battery within a week, 1 Amp certainly is another story.
- londons_explore 5y ago1 watt. So about 0.1 amps. But the car had a 30 amp-hour battery, so after 10 days the battery is fully drained. And lead acid batteries don't like being fully drained more than once or twice, so after a month or two, you have to buy a new battery. And the process repeats... This happens even if you drive the car every day. Since a full charge of a lead acid battery is 12+ hours, if you only drive the car half an hour per day, then each day you are discharging more than you charge.