Trickle Charging RV Batteries which settings

[Rich Franklin]

I have a trickle charger that can charge at 2, 6, or 10 amps, which should I use? It is an automatic charger so I shouldn't have to worry about over-charging.

Rich

[GringoPhil]

Any of them. The usual maximum is the battery's capacity in amp-hours divided by 5

[NewellCrazy]

If it is an automatic charger, there should be no need for any setting less than its max. But how do you know how good the "Auto" is? If just keeping the charge up in storage once the battery is fully charged, I'd use the 2 amp setting. Otherwise I'd use 10A.