Have a B2600i. Last 2 weeks, I had to charge the batter for 20 minutes before I can starts the truck. Drove for 10 minutes. Sat for a day and the next morning it won't start. Charged again and it starts without problem. took it the Les Schwab turned off the car. It wouldn't start unless from a jump. and they told me it was a bad battery. (9 years old) I was wondering, if I can charge the battery at home and it starts, why wouldn't starts again after drove it for 25 minutes? Is my alternator going bad too?