Hi Clare, brute force Jenny here,
I had 3 of them in mind. Not new but still hold a good charge. But as I mentioned I do also have some gell cells and would make for an neater and easier installation at the gate.
Thanks for all your help.
They are indeed. My local surplus store always has some on hand. Jenny, AGM means "absorbant glass mat" which in practical terms just means sealed with no filler caps -- ya don't have to check the water.
Hey Don, isn't amazing how much electronic engineering comes out of people who mostly seem to have learned all they know from E-Bay ads ? :-) ...lew...
Hey, I didn't learn it all from e-bay ads - I just didn't have my reference books handy, and wanted to show what could be grabbed off ebay (scrounge mode). without getting into anything complicated.
I used to do some product development - stuff like conversion boxes to run 12 volt trailers on 24 volt landcruisers - both the lights and electric trailer brakes. Sold several dozen of those conversions years ago. Also built and drove my own electric conversion of a Fiat 128L coupe. Used to do board level repairs on computer motherboards too - back when it made financial sense to do it.
Hey Not refering to you specifically just in general the kind of things that pop up here and there. There are a few electronic engineers around here, some have been retired for a few years and are a little behind all the latest developements :-) ...lew... vacuum tubes through CMOS :-)
OTOH, "I" don't need the 36 V.
jk
Ain't that the dyin' truth! I don't even understand most of the acronyms used in the trade rags anymore -- but I still have my tube manuals! I won't mess with any surfacemount part having more than 20 pins if I can avoid it, and I need a dang microscope even to do that. I think Jenny picked the right pony in using a stack of solar panels, but I've continued to mess with that little dirt-simple inverter anyway just for fun. It works quite well.
As an added note.. with AGM referring to a specific battery design/construction technology, but similar types of low maintenance or maintenance-free batteries are generally loosely referred to as SLA (sealed lead-acid) or gell cell types.
WB metalworking projects
So AGM batteries can be "wet"? Maybe that has more to do with construction for deep cycle service? I know that deep cycle plates are more fragile than those used in automotive batteries, and TM batteries do take a pounding in a fast boat on rough water.
AGM batteries are "damp". There's just enough liquid electrolyte absorbed into the separator mat to do the work, and no more.
Unless you wring it out, you can't get any liquid out - and if you short the plates squeezing electrolyte out I can guarantee that much excitement will ensue, as they have a tremendous fault-current capacity.
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What is being referred to is also known as "starved electrolyte"
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