Join Date: Jun 2007
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Rep Power: 10
11 amps? That would imply only 41% efficiency on the part of the battery charger. Are they really that bad?
AllThumbs, how do you derive 12A at 120VAC from 45A at 12VDC? Battery chargers commonly have less than 40% efficiency?
I'm going to have fire-up the ol' Sears battery charger and take some measurements.
FarCry, there are many ways to make a good, temporary weatherproof connections. I do it every season with the outdoor Christmas display lighting. Perhaps the best way is self-vulcanizing tape, overlaid with 3M vinyl electrical tape. (I don't do that.) Done right, I'd probably trust that to be water-proof. (That is not a recommendation, but merely an observation.) What I do for the Christmas lights is a few snug wraps of Glad Press'n Seal wrap, with a few tight turns of 3M vinyl electrical tape at the ends. Quick and easy to put on, quick and easy to get off. Or sometimes I just go end-to-end, and back again, tightly, with 3M vinyl electrical tape.
Notice I've been explicitly writing 3M vinyl electrical tape? Just as with duct tape: Not all "black plastic electrical tape" is created the same.