Patrick Horan Posted February 21, 2024 Author Report Posted February 21, 2024 5 hours ago, LANCECASPER said: I don't think these are in any way connected to each other. I think you're correct - that your trickle charge fuses have been blown awhile. This is not really published anywhere (but Mooneyspace), but on Long Bodies don't switch from BAT 1 to BAT 2 or vice versa with the Master switch on or with the airplane running. There is an expensive relay you can blow and I think these Slo-Blo fuses also get blown often because of switching batteries under voltage. (I exercise both batteries, but on odd days I use battery 1 and one even days battery 2, as a means of making sure both get used.) Regarding your lights going back to your first post, you said "I adjusted the overhead vent and all of a sudden the overhead lights/baggage lights went out". Thats where I would be looking to solve that - looking for a chafed wire or something close to that vent that is the cause. Thank you for the tip, I knw I switched the batteries in-flight once or twice.....whoops! Quote
carusoam Posted February 21, 2024 Report Posted February 21, 2024 hey gents! The goofy battery relay works ok when brand new… … and you don’t take a lot of time when pushing the switch… But… if you push the switch real slowly… you can either find a dead spot with no power running through it… or both batteries connected allowing for excess voltage from one battery finding another way to go to ground… if you study the electrical drawings for the switch and relays…. you may find that they theoretically make sense… but, in real life, with a bit of wear… remember to push the switch with intention… there are a few relays by the batteries that share the same part number… I bought a spare because the relay wouldn’t switch batteries… it turns out… the battery switching relay was attached to my dead battery…. O1s didn’t get the nice set of CBs in the tail… (‘94) pp thoughts only, not a mechanic… Best regards, -a- Quote
Patrick Horan Posted February 26, 2024 Author Report Posted February 26, 2024 I just want to Publicly thank Lance for helping me out! He sent me new fuses and bayonet fuse holder!! All that fixed my lights! 1 Quote
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