When I put it on my battery tender the tender never shuts off is this normal? The battery works fine you can crank and crank on it all day but every time I hook it to a 2,6,and 12amp charger it will take the full charge for as long as is hooked up. My other batteries are AGM they will stop taking charge after 12 hours whats up with Odyssey? In the past I've left batteries on the charger too long and they start getting hot this Odyssey doesnt, Should I not worry about it?