PorscheCharge-o-mat Pro Battery Maintainer and Charger

Works very well and extremely convenient to simply plug into the power socket to keep battery topped up. If your Porsche’s not a daily driver, don’t learn the hard way that it’s a pain to get the “frunk” of a modern 911 or 718 open once the battery runs down! (You have to connect 12 volt source to a point on fuse block under dash). Your battery WILL run down if car is not driven weekly. And of course the “frunk” is where the battery lives….The charger is overpriced compared to the generic model, but if you want the Porsche labeling, you pay for it. At least It does include the nice protective rubber bumper and car plugs, which is extra on base models. The only flaw is that in the event of power loss the charger does not return to “on” status after power is restored, so if you’re away for a while or don’t notice, your battery will run down even though charger is connected and plugged in. Some of the other models of this brand return to charge status when power is restored, like this one should.Unlike other reviewers, I have had good success with this brand charger lasting for years under continuous use. I have 5 of them, several over 6 years old, that are still going strong. I have not had the same success with other brands.

Does exactly what it says. Great unit.

The ability to charge and keep charged a battery through cigarette lighter is genius. Access to battery terminals in the newer Porsche requires the removal of panels to access the battery terminals. So convenient

This charger initially seemed promising, but it quickly proved to be unreliable. It works for a few hours, then starts blinking and refuses to charge my Porsche. The inconsistent performance and lack of durability make it a frustrating and disappointing product.This product is a complete waste of moneyCustomer service was unhelpful and unresponsive to my concerns. I would strongly recommend looking for a more reliable and efficient charger from a different vendor.

I have had a Porsche charger since 2008.... that one finally quit working so I bought this one for my car. It works great, simple to use and maintains the battery during the winter while the car is stored

Perfect accessory battery tender

Pretty good option for car storage but it does take a awhile to give a full charge. Also, it would have been better if it came with battery clips instead of just cigarette lighter plug in.

If you live in a climate where the Porsche gets garaged for months, get this. What a great item! Smart, cheap, and works. I’m stoked to have found it.