Review on 🔌 Progressive Dynamics PD9270V Inteli-Power 9200 Series Converter/Charger - 70 Amp with Charge Wizard: Ultimate Power Safety and Efficiency by Adam Webbie

I use this to properly charge and maintain the GC2 bank in my garage to use as a backup power source when the power drops out of. It supports them properly, and the built-in loadmaster keeps it from overcooking. Most people use them for RVs, but they also work well during shutdowns or power outages to keep the batteries alive and charge them quickly from the generator during a long outage. The power is on and in the event of a power outage, the batteries will automatically turn on and keep the sump and oven running. For longer shutdowns, it is better not to leave the generator running all the time, which can charge the 4 GC2 battery to 90% in about 3 hours. The batteries can then handle any required loads for the rest of the day without the need for a generator.