Flex bed 12v voltage low?

[yoyomav]

I was installing an usb outlet with voltage indicator in my flexbed. The voltage is showing 12.2V.

Wonder if this is voltage straight from the lead acid battery? Seems kinds low to me. I've gotten 2 deepsleep messages last week but not anymore. Never an issue with starting the truck.

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[paneubert]

What does it show when the truck is running?

 

[Tailender]

My volt meter in the bed shows 12.8 when not running and 14.5 when running. I'd keep an eye on it especially since you got a deep sleep message. Check the meter after the truck has been sitting for several hours and see what it reads.

 

[yoyomav]

I measured the voltage again when the truck had been sitting there for few hours and the voltage actually went up to 12.8V, which is fully charged level for lead acid battery.

I think there must've been some electrical components still drawing power right after the truck is driven. This also explains why I always got deep sleep messages right after I parked the truck.

Just didn't expect that since with all my other cars the voltage is highest right after driving it.

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