![]() There are many factors to consider when running an artificially powered charging system alongside a solar charging system. As explained in the previous post about solar charge controllers, they are the gate keepers for the solar panels and will reduce the current coming in from the panels to 0 amps if need be. Higher end solar charge controllers are designed to ensure that the batteries are never overcharged. The bottom line with two charging systems working simultaneously is that each will do a little work, but one will do more work than the other. This can throw one or the other or both systems off of their normal Bulk-Absorb-Float cycle.īecause solar charging systems operate 24/7, the most common scenario in which two charging systems work simultaneously is solar charging and some form of artificially powered charging, either a converter or inverter/charger when the RV or boat is plugged into shore power or the generator is turned on, or an engine alternator when the boat or motorhome is under way. They see an artificially elevated battery voltage due to the presence of the other charging system. However, when this happens, and the two charging systems measure the battery voltage to determine which charging stage they should each be in, they don’t see a “real” value. When two battery charging systems are working side by side simultaneously, each follows its own internal algorithms to get the job done. WHAT HAPPENS WHEN TWO CHARGING SYSTEMS OPERATE AT ONCE? Getting The Most Out Of A Backup Generator.Lessons Learned From Our Engine Alternator and Solar Charge Controller.Effects of Wiring Voltage Loss and Differences in Calibration.Setting Common Baseline Charging Stage Voltages.What Happens When Two Charging Systems Operate At Once?. ![]() This is a long post and you can navigate to the various sections using these links:
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