Has anyone had any luck charging a Jackery 500 while plugged into the rear 110V when driving, so limited to 100 watts?

I used a Jackery to power a Dometic Fridge and was wondering if I could plug the jackery into the stock outlet to charge and pass power through to the Dometic.

Looks like some folks have had luck doing it and others not.

Thank you for any info,
Matt

Why not just give it a go? I have a Jackery 300 and could test this out this weekend probably..

I've done it. Had a fridge connecting to jackery and jackery connected to the outlet in back. Works fine.

That's what I do. Works fine, no issues.

Can the Jackery not charge with 12V or does it just charge with more wattage plugged into 110V?

Yes. I’ve used pass-through to a fridge and charged a Jackery 500 both ways, with the 12V DC and with the 110 VAC from the inverter through the Jackery power brick.

12VDC charging supplies about 40 W to the Jackery while the power converter brick can output 24 volts @ 3.74A (up to 90W). AC charging is faster. You just have to remember to turn on the inverter each time you start the engine.

Like ElectroBoy and others have said, Jackery does pass-through charging well. (Bluetti claimed to and we almost lost 5 days worth of food on way out to Death Valley. Luckily saw the fridge had an error midway on the drive. This is what prompted me to switch to the Jackery.)

If you do the add-a-circuit to keep the 12v hot, you could leave the Jackery plugged into the rear 12v and it would charge all the time until it was full as it tapers off the power automatically. My fridge draws around 35-40W, which is around what the 12v outlet outputs so the Jackery would hardly need to pull power from the truck to keep the fridge maintained once at temp.

Side note, the Rockpals folding solar panels are a nice way to keep the Jackery powered up during the day again using pass-through. Mine put about 74W to the Jackery in ideal light.

Also running a dometic (55IM w/ insulator bag) with a knockoff 600Wh battery pack.

From the 12v I get about 25-30W with a USB-C Cable and the 110 with the battery's brick puts out around 90W. My battery can dual charge via DC plug and USB-C so 120W total. The fridge averages 60W draw and about 30% duty cycle on most days in CO that are around 70-80 deg F.

Notes from my experience:
1) On my 2015 SR5, If I push the inverter button and shift to drive too quickly the inverter will kick off. I have to let it sit for about 30 sec for the battery draw to normalize (I think at least) and then I can drive and charge without interruption. I cannot turn the inverter on while driving which I attribute to the draw being over the 100W limit that the 4Runner puts out while in Drive.
2) If the fridge goes into idle mode and doesn't kick back on for 20-30 min the battery will shut off the 12v socket as it doesn't have any draw. I think most battery generators have this feature. To get around this I have an led light string plugged into the usb socket of the dometic. These lights keep the battery from shutting down and serve as a a visual indicator that the fridge it still running.
3) The 55IM has too much power draw to be run off of the 12v on its own. It continuously gave me a compressor startup error when I had it configured this way.

Battery for reference: Amazon.com : Portable Power Station 622Wh, MILIN 600W Solar Power Generator with 2 110V Pure Sine Wave AC Outlets and PD 100W Quick Charge, Backup Lithium Battery for Home Use Outdoor Camping RV Travel Emergency : Home Improvement

I’ve charged my Jackery 500 both ways with my Dometic fridge plugged into the Jackery 12V.
I just charge the Jackery with the 12 volt while driving. I don’t have the rear outlet wired “always on”. I don’t use the 110 outlet because I know I will forget to turn it on again after shutting of the truck after stopping somewhere.
I use a Goal Zero 100 watt panel to charge the Jackery while camping.

Great info. Thank you.