Post the specific brand and model number of the maintainer and how you are using it.Maintainer charges agm and regular batteries to 14+ volts and keeps them there. Is this harmful?
Maintainer charges agm and regular batteries to 14+ volts and keeps them there. Is this harmful?
Thats an overgeneralized statement that is not true.Battery maintainers burn up batteries. Don't leave it on all the time.
Battery maintainers burn up batteries. Don't leave it on all the time.
I would at least cycle it occasionally so it's not being constantly bombarded, but it should not hurt the battery.Thats an overgeneralized statement that is not true.
This maintainer charges at different levels depending on state of charge in battery. It starts at 12v then quickly lowers voltage charge as the battery state of charge improves. It's on my Mercedes which is basically off the road for winter. If I open the door, lights come on and the charger will start charging at about 8 volts and lower charge rate rapidly as the door lights didn't use that much battery. It's really sensitive.What make/model and how long have you been monitoring it, "keep(s)ing them there"?
If the voltage is no longer rising then I'd measure current. More than a few tens of mA is going to cook off too much electrolyte if used for long. May be harder to measure if pulsing, would need a logging meter if not 'scope.
What if it automatically shuts off.. some maintainers do that. Just because its charging at 14.4v doesn't mean it stays like that 24/7.I would at least cycle it occasionally so it's not being constantly bombarded, but it should not hurt the battery.
This maintainer charges at different levels depending on state of charge in battery. It starts at 12v then quickly lowers voltage charge as the battery state of charge improves. It's on my Mercedes which is basically off the road for winter. If I open the door, lights come on and the charger will start charging at about 8 volts and lower charge rate rapidly as the door lights didn't use that much battery. It's really sensitive.
Sorry I meant it charges and maintains the battery at 14.2v. As you can see in the pic, it's connected and is off. So it doesn't stay on. When I opened the door and the lights came on, the maintainer came on, charges back to 14.2v and turns off.What if it automatically shuts off.. some maintainers do that. Just because its charging at 14.4v doesn't mean it stays like that 24/7.
This thread is basically worthless without knowing the model of battery maintainer.
Somehow I doubt that its charging at 12v because the battery should be higher than 12v.. and not sure what you mean by charging at 8v.. that would be discharging?
And your first post said it charges at 14v and stays there..
Can we get some clairification? Doesn't make sense currently.
Then burn up some batteries and learn the same way I did...Thats an overgeneralized statement that is not true.
Then burn up some batteries and learn the same way I did...
Then burn up some batteries and learn the same way I did...
That's exactly it. It's likely doing what the battery needs. If it sustains 14.4v I'd either shut it off occasionally or question the condition of the battery.What if it automatically shuts off.. some maintainers do that. Just because its charging at 14.4v doesn't mean it stays like that 24/7.
This thread is basically worthless without knowing the model of battery maintainer.
Somehow I doubt that its charging at 12v because the battery should be higher than 12v.. and not sure what you mean by charging at 8v.. that would be discharging?
And your first post said it charges at 14v and stays there..
Can we get some clairification? Doesn't make sense currently.