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MultiNav Pro+ Power Kit super-cap charging time from dead zero?

Rodney BellJune 13, 2026
Hey all, working on a remote sensor node that'll go through power cycles pretty regularly - think solar topped off during the day but fully draining overnight in winter. My concern is what happens when the super-cap system starts from basically zero charge. Like if the panel hasn't seen sun for two days and the caps are completely flat, how long am I actually looking at before the module has enough juice to boot and start operating normally? Is there a minimum voltage threshold it needs to hit before it'll even attempt to initialize, or does it try to come up immediately and just brownout-loop until the caps are charged enough?
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