Just got a DROK DC 0 120 V DC 0-100A battery monitor. for discharging and charging. Keeps track of overall power usage. Once the Brand new RV is out of repair (been there nearly 4 months straight from the factor to 4 months of repair. NexusRV told me they will not honor their Warranty even after they told me to take it in for repair. We will see if they offer to pay anything, probably will end up in court... anyhow, I almost have the RV electrical systems working like they should. This is an addition I'll add after this is all over. We will bring you a bunch of adventures with this RV and the Motorcycle (after we get a trailer to pull it.