I haven't yet but this is a new set of batteries and charger. I charge at 15.2 to 15.5 so the sg is always up and the readings are pretty consistent. I'm also buying a Mega Watt power supply and will be able to equalize at 16 v. I'll watch my sg readings to see when it's needed. I believe many rv converters dont have the ability to truly equalize but I'm not familiar all the models.