Adding more batteries

jeremywatco wrote:
Would solar trying to charge at same time trick the converter?

Yesterday what I did to get my bank charged (above the 4amps it tried to charge at) was to unplug Mt solar controller, then unplug the converter. Let batteries sit for a min and then plug back in converter. It would then charge at like 25ampa for an hour or so. Did that a few times with the amps gradually tapering off. Was a pain but did the trick.

Can't tell what is going on with the converter unless you tell us the voltages at the converter's terminals at the same time as you give the changes in amps. Also we don't know the actual state of your battery bank.

You are missing the basic point that if everything is working properly, then your 220AH battery bank will only accept the 60 amps until the bank reaches about 70% SOC, when amps then taper.

If the bank is actually smaller than 220AH (most likely after two years of under-charging) then it will accept 60 amps only to say 65% SOC or even lower in SOC.

-----If the smaller size bank that will only take 60a till 65% is already at 67% and you hit it with 60 amps, then amps will immediately be lower than 60----- and start at what the bank will actually accept and taper from there. *That might be what you are seeing*.

So your Boondocker, might be working properly, but your battery bank is not as many AH as you think.

OR, something might be wrong with the converter. No way to tell with the little information being provided.

If the Solar has the battery at 14.x already, then 15 min after starting, the converter will drop to 13.6 and do fewer amps than it would at its 14.6. If the bank is starting at 60% as reported, there is no way the solar will get it up near 14.x any time soon, so that is not likely the problem here.