My lithium-ion battery is dead. I had the battery on this charger overnight, ok. 10 hours. Nothing. I charged the battery for another 4-5 hours. FINALLY enough juice to start the engine. This allows the charger to bring an empty battery back to life. Unfortunately, once was enough to kill the battery, ie the second time the motor doesn't start. The battery is more than two years old - it's time to change the battery. AOK charger in my book.
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