I just picked up 2 Arc Pak 150 Watt AC output units. They came with 120v chargers with a weird plug to go into the units. Batteries are deeply discharged and trying to revive them out of and independent of the units. While that experiment is going on Id like to hear your guys thoughts on the reliability and function of them? I would not be using them with solar but charging from home or generator and vehicles alternator
I’ve found the 120v adapter to be insufficient to charge a depleted battery or to even keep the battery fully charged with a load on it.
We just finished a 6 day trip with the arkpak in the bed of my truck plugged into the 120v courtesy plug and the only thing on the battery was a Dometic CFX 65 fridge plugged into the 12v outlet. After a 6 hour drive the battery was already drained down to 71%.
The next morning at camp I put it on a charge with my Renogy 100w panels in full sun and a charge controller into the anderson plug, bypassing the arkpak electronics. I was able to get the battery back up to 80% while still having the fridge running off of the 12v plug on the arkpak. The next day the panels were able to get the battery up to almost 85% during the day, overnight it would dip down to about 65-70% and the next day would charge to 85% by sunset. This was consistent for the remainder of the time we were at camp.
The first day we were driving home the battery dropped below 12v after 6 hours of driving with the Arkpak plugged into 120v in the back of the truck and the fridge into 12v again.
With one more day of driving I decided to plug the fridge into the 120v plug along with the arkpak and keep the fridge in the 12v plug on the arkpak for when we make stops to keep the fridge on. After one more day of driving the batter was back up to 70% when we got home. I then plugged the battery into the wall at home and left it overnight. It did not fully charge.
So I pulled the battery out and did a repair and charge cycle on my noco battery charger. This got the battery back up to 13v overnight. I then put it back into the arkpak and plugged it into the wall. It’s been maintaining the battery at 13.4v for 2 days now.
In my old truck I had the arkpak charging with a dc to dc charger from the alternator and this provided ample power for the battery to stay topped off and run the fridge indefinitely.
Long story short, the 120v plug is great for maintaining a charged battery at home but terrible for charging a low battery or maintaining a charge with a load.
Hope that helps