|
The conventional wisdom that I've been repeatedly told is to use a charger of around 10-30% the battery capacity to preserve battery life. For example, for an 85 Ah you'd want a charger between 8 and 25 A.
I don't know how true or not this is. Aside from low-charge states being bad for deep cycle batteries in general, I don't know if there's something particularly bad about charging slowly.
If you do get a new charger down the track, it might be handy to keep an eye out for one with "power supply mode" that provides a constant 13.8V.
|