That's my usual experience and this automatic charger usually does a good job. The day after the first try at charging, it went down to below 2amps and the lil' green light on the charger came on like it's supposed to. The battery wasn't too good when I bought the tractor and I don't think the wiring has been helping. Jiggling the wires will get a stronger charge (dimmer alt light). Looks like I have some work ahead of me. When it runs, it runs like a dream, when it don't start, it's a super heavy duty door stop!