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Old 06-15-2021, 12:41 AM   #15
janice142
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City: Madeira Beach, FL
Vessel Name: Seaweed
Vessel Model: Schucker mini-trawler
Join Date: Oct 2011
Posts: 1,236
Load tester for cheap: in the automotive section years ago I found a car trouble light. It came with a cigarette lighter plug. I removed that plug, split the wires, and added battery charger clips.

With the batt being tested separated from the rest, I clip on the light. My battery will fall .6 or so... so from 12.7 to 12.1 (give or take)

A bad battery will continue to drop. When I remove the light a good battery will come back to starting point. A bad battery will not recover. It is immediately removed from my system.

Anyway, the "trouble light" is what I use as a load tester. The bulb in mine says it is 1 amp.

Anyway that's what I do.
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