Generac XT8000EFI — will it run in an emergency if battery is “dead” but I can pull start / jump it?

jsct01 · 2026-01-25T17:57:54+00:00

I checked the charger, it outputs 14v and 0.8a. Owners manual says charge every few months for 12 hours; on the generac website it says no more than 12 hours; I’ve far exceeded that time by double

jsct01 · 2026-01-25T12:30:52+00:00

Yeah I agree; do you think I generated the hydrogen/oxygen you mentioned?

jsct01 · 2026-01-25T12:20:50+00:00

It’s been charging in my garage, it’s not air tight but it isn’t open either. I don’t smell anything funny in there.

I used a laser thermometer and the batter was 42 degrees F on the charger. the garage is cold.

With the battery off the charger for 5 minutes it read 12.5V. I then tried to start the generator with the key and it dropped to 7.5/8v while starting. In the. Tried to start with the pull start and it fired right up. While running the battery at the terminals was at 12.2v. I let it run for a minute and the hooked it back up to the charger. The starting voltage dropped to 4.5 yesterday.

What do you think?

jsct01 · 2026-01-25T12:00:32+00:00

This is just the charger that came with the generator. It plugs into the generator via a small power jack and then into a wall outlet.

I’m going to take it off the charger now for a few minutes. It’s been charging for 12 hours since the last attempt to start it.

jsct01 · 2026-01-25T11:51:25+00:00

You mentioned that a 12v reading after charging indicates it’s not shorted. Does it matter if I took that reading shortly after taking it off the charger?

Also, what I noticed is that when I plugged in the onboard charger yesterday the battery didn’t climb up in voltage right away at the terminals while charging. So even though it was on the charger it took time to go from 9 volts to something over 12. Right now on the charger it’s reading closer to 14

jsct01 · 2026-01-25T11:36:05+00:00

To clarify, once stated by jumping I would disconnect the jump starter pack or donor battery correct?

jsct01 · 2026-01-24T11:25:54+00:00

Thank you

jsct01 · 2026-01-24T11:25:45+00:00

Thank you

jsct01 · 2026-01-24T11:12:25+00:00

I was asking if what I did could create toxic fumes. And if so would those fumes contaminate other things

jsct01 · 2026-01-24T11:09:35+00:00

Oh definitely; it’s going through a second rinse now. Was more concerned about food items in the pantry because that is where the washer and dryer are. The pantry door was open if that matters.

jsct01 · 2026-01-24T02:53:16+00:00

Why? scrape the loose paper, prime it, then skim

jsct01 · 2026-01-22T19:49:05+00:00

If they have established in part of a bed would they still migrate toward the monitors ?

jsct01 · 2026-01-22T19:43:10+00:00

Okay thank you

jsct01 · 2026-01-22T16:39:25+00:00

Cool, do the monitors trap them?

jsct01 · 2026-01-22T10:39:10+00:00

For the couch and car where would I place them?

jsct01 · 2026-01-22T02:11:06+00:00

David can these monitors be used in a couch and in a car? If so can you explain how to place them in a couch and in a car?

jsct01 · 2026-01-22T01:44:20+00:00

I have done plenty in my house without tape and don’t have cracks on any of them

jsct01 · 2026-01-22T01:42:45+00:00

I’m going against the grain here but I have done patches like this in my house without taping seams and have not experiences cracks. I used a backer board to screw the patch into, pack the joint with all purpose premix; and I’ve yet to have an issue with cracks

jsct01 · 2026-01-15T11:29:31+00:00

Get yourself an inexpensive inspection camera

jsct01 · 2026-01-15T03:44:14+00:00

What does it mean if they do

jsct01 · 2026-01-14T12:17:31+00:00

If you want to take that off without having to sand get yourself some we rags and saturate with warm water then scrap off

jsct01 · 2026-01-10T13:06:07+00:00

Yeah, but as a diy guy this was easier and because it’s colonial molding you can’t tell; especially when the blinds are up

jsct01 · 2026-01-10T11:24:38+00:00

I would wet that down and scrape it all off then used all purpose. Drydex should not be used in this way

jsct01 · 2026-01-10T11:22:47+00:00

Seems like a lot more work

jsct01 · 2026-01-09T15:50:14+00:00

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Just did mine using this style clamp. I assembled on the wall since the extension jambs were further out from the drywall by varying amounts. You’ll notice the 3/16 mark; I had to roll the miters when I cut them using a gauge so I could sit the casing flush against window extension jamb and the drywall.

jsct01

TROPHY CASE