Battery Charger Won't Start? Troubleshooter

Many smart chargers refuse to charge a very flat battery.

Don't open the charger. It has 240V AC inside. Work through one question at a time. You can go back or start over whenever you like.

Safety: this troubleshooter is general information for low-voltage DC learning circuits. 240V AC mains can kill: in Australia, work on mains wiring must be done by a licensed electrician. Disconnect power before you touch wiring.

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