On 3/15/20 7:45 PM, Ken Hohhof wrote:
Is it normal, or problematic, to replace AGM batteries and when you
connect the new ones to the charger (in this case an Eltek rectifier)
they make noise?
Like a faint bubbling sound inside? It's possible they have always done
this and I've never heard it in the past because my ear wasn't within a
foot of the batteries.
Too much charge current perhaps. You could try lowering it. The
controller should have a way to limit current. If there isn't a current
monitor on the battery leg set the controller's current limit to your
normal load + whatever the battery datasheet says the maximum charge
current should be. Of course then you will have to make sure to adjust
this if you add/remove equipment.
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