roadrunner20
Well Known Member
Solved: Blown Battery Contactor?
I was doing some battery power on EFIS configurations this evening. Apparently, I drained the battery power down. When I opted for engine start, the starter wouldn't engage due to low battery.
While trying to attach the charger clamp thru the cowl oil access door, I grounded the positive battery terminal to the FW ground. The battery reads 12.5 V, but I get no master power.
Did I just blow my battery contactor? FWIW, I can't remember whether I had a diode attached.
I've not had a chance to remove the cowl as it was getting late.
Just thought I'd get some advice prior to troubleshooting it tomorrow.
UPDATE: while attempting to do a battery contact, I inadvertently disconnected a quick connect. I've corrected this with encapsulating the quick connect with some shrink tubing to prevent this in the future. I'm also rigging a remote battery connect as others have suggested.
I was doing some battery power on EFIS configurations this evening. Apparently, I drained the battery power down. When I opted for engine start, the starter wouldn't engage due to low battery.
While trying to attach the charger clamp thru the cowl oil access door, I grounded the positive battery terminal to the FW ground. The battery reads 12.5 V, but I get no master power.
Did I just blow my battery contactor? FWIW, I can't remember whether I had a diode attached.
I've not had a chance to remove the cowl as it was getting late.
Just thought I'd get some advice prior to troubleshooting it tomorrow.
UPDATE: while attempting to do a battery contact, I inadvertently disconnected a quick connect. I've corrected this with encapsulating the quick connect with some shrink tubing to prevent this in the future. I'm also rigging a remote battery connect as others have suggested.
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