My Ark Pak was great ( while it worked). Then I contacted Ark Corporation about getting it fixed and they charged me an extra $200 and everybody disappeared. NoArk. No money.

It does all the things it should, but with issues
Very noisy fan makes charging in a sleeping area not an option
Open Circuit Alarm always going off (just Google it)
240volt adapter will die early, replacement is $$$$$

Support is good, the people at Arkpak have much online support
But when you are paying north of $400 for an empty box, should you expect such issues?

Absolutely helped me to understand way better with practical use as I went along!great product wouldn't be without it now!10 out of 10 to manufacturer enjoy the look also.Totally good for charge of batteries as it conditions them back to optimum charge level every time.Very handy for those camp trips also as batterie power for every thing I threw at it in terms of living easily.Economic to run and not bad on the inviroment.Thums up to the performance also!

I have a tip if interested
If anyones ac adapter doesn't work anymore, do what I do and use my laptop one. It works for me, try it before forking out for a new one. We charge ours with 150w solar whilst camping to run our 60lt evakool frige freezer/lights, charge phone etc.