Posts: 188
Location: Madison, WI | A 30 amp charger across three batteries in parallel is only putting roughly 10 amps across each of the batteries (it depends on the state of each battery but it suffices to say that a 30 amp charger for three batteries is just fine).
I'm assuming by your message that the three batteries are seperate from one another except when you charge them.
It sure sounds to me like your trolling motor battery is shot. I wouldn't rely on the "eye' of the battery and a voltage reading is always accurate either. A very bad battery can read a decent voltage right after charging but will provide inadequate amperage when it is put under a load (like your trolling motor). I don't know how you too the amperage reading but it would only be accurate if the meter is put electrically between the battery. 4.5 amps with the motor running sounds pretty low to me but then again I've never really measured it before.
Check out your motor with one of your other batteries. I'd be willing to bet that the others make your motor work just fine which means the green eyed one is dead.
Craig |
