Hughes Autoformers RV220-50SP RV220-50-SP Voltage Booster/Surge 50 Amp

We have a 50 amp RV parked in a seasonal 20 amp site. Not ideal, but it’s what we have. This thing is amazing! We had voltage dropping to 90 on busy, hot weekends, and it was around 105-110 at its very best. Now we’re hovering around 115-120v. It’s a definite relief to have it, and the surge protection is the cherry on top.It was REALLY nice not to have to order this direct from Hughes because we would have had to “re-ship” it since they can’t legally sell it to us here in Canada. It’s worth noting that it is NOT CSA approved. Not yet. We were all set up to ship it using a re-ship service to get it into Canada, but it would have cost us more to do it. This was an expensive purchase, but it’s worth it for peace of mind.

This is a lot of money to spend for an RV toy. However, this is more than a toy, it is a great insurance policy for your electrical equipment in your RV including your very expensive batteries. In my mind, this is a small price to pay to have assurance that you will be protected and have ample voltage at parks with little reliable power.Recently a group of us were camping in a Michigan park where the voltage dropped to 104 volts due to all the other RV's running their AC's. This unit protected our RV while others in our group weren't so lucky. They had non-boosting protection and damaged their DC batteries along with some other components.I opened the unit upon receiving it (this is okay as this is what you need to do if you need to replace the surge unit) and examined the parts used to build the device. Hughes isn't gouging the consumer. They are using expensive, certified, reliable parts to provide a quality unit.Because this device does not have the bluetooth monitoring built in, I took the liberty to add some CT clamps on both lags along with connections to monitor the voltage to view remotely. This can also be accomplished by separately purchasing the model that does the monitoring with the Hughes app.

Works great. Wish you could connect to it via Bluetooth app to see whether it is boosting and other status information like incoming and outgoing voltage levels.

Best option for when you’re on the road and end up with dicey park power. When everyone else’s surge protectors are tripping you will have smooth constant power with this autoformer. Plus your AC(s) will thank you for the even power.

With the campgrounds full and using maximum power do not see 104V anymore, lowest I have seen is 114V.