Quote:
Originally Posted by The Cramblersons
Thanks. No certainty in that thread either, but the backup voltage for the ramp door lock seems like a good guess. Though, just last week, I tried opening the ramp door with the key when I had the battery shutoff in the OFF position and nothing happened. If those are the backup batteries for the ramp door lock system, they didn't work....or they are dead. I'll try replacing them and see what happens.
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The batteries could be back up voltage for the door lock solenoid or they could be for the key pad memory.
If the latter they would last quite some time, if for the former, and connected in series, they might last long enough for a limited amount of usage.
Only the blind installers know for sure, maybe.