Trailer Battery Load Support
As a followup to my recent discussion about my newly acquired CTEK Multi US 7002 Charger I'd be interested in some further input on the subject of trailer battery load support. :) First, I should c...
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SoundGuy wrote:
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Which as I see it isn't an issue for my particular application as I'd only be significantly drawing down this battery a few times each season when we lose campground shore power. Rather, I'm more interested in the battery's ability to maintain voltage under load from the inverter when I'm powering our coffee machine or toaster. I've demonstrated to myself that load supporting my current flooded G27 with my truck running does help but if an AGM alone will handle this task more easily than a similarly sized flooded, recharge more quickly than a flooded, and eliminate the need to load support with my truck, then an AGM, even a less-than-ideal East Penn AGM, seems like it may be a good solution for me.
Think I have the same 1000W CanTire Inverter you do, and had the same V drop issue. But as we boondock more, I ended up doubling my GC2 battery count.
But for your scenario, an AGM sounds good.
Just don't forget your cables and lugs. Have you actually measured your cable voltage drop? I was surprised how much I had at high currents, more than expected from the usual calculations. So I've now got 2/0 cable with heavy crimped and soldered lugs.
And once you get that toaster working, you may try something even more demanding ... as we are now doing
