ORIGINAL: opjose
The very first charge as the manual states is supposed to be much longer. I believe it states 24 hours. It doesn't sound like you did this though.
It only said to charge it for the first time 10-12 hours. Subsequent charges 10 hours.
I like your idea of getting a few igniter's. I need to get a new plug for the engine, so I think I will pick up another igniter as well.
Also, is it possible to get a more powerful battery?