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PowerMax manufacturer Battery Charges, Power Supplies, DC Converters, DC-DC Converters, and Automatic Transfer Switches.

What our clients Say

“Hello Graham and Errin, I wanted you to know you have a very satisfied customer. We have been using your converters for about three years now and have 25 in use. Your products are excellent and your service is even better!”

Ed DeJulis

Service Manager, Audi Salt Lake City

Folks, if you are looking for the VERY BEST in Customer Service and a proper battery charger or maintainer for your personal use or business you need look no further than Powermax!! Powermax chargers have the charger you need whether you need it for a power supply during vehicle diagnosis, a maintainer, or to charge batteries. They have the proper charger for all types of applications as well, even the new lithium Ion batteries installed in some high performance automobiles. Graham McWilliam will give you the very best in Customer Service and their prices are sure to please you!! If you need a Battery charger or maintainer give Powermax a call and I am sure you will be delighted.

John Reynolds

Assistant Service Manager, BMW of Murray

The Power Max team is great! I order from them all the time, they always have what i need and great prices to. I recommend their converters to everyone. As far as warranty they stand behind their products, hands down. Thanks Graham and the power max team keep up the great work.


Johnnys RV Center

Latest News from Blog

Saque ipsa quae ab illo inventore veritatis et quasi architecto beatae vitae dicta sunt explicabo

Record carp sets new bowfishing mark

A Toledo bow fisherman can’t carp about his recent catch in Lake Erie. A whopping, nearly 54-pound carp  is now in the record book as the largest taken by a bow fisherman, the DNR Division of Wildlife announced.  ... read more

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