I've got a 300-watt, 18-volt solar panel connected to a Renogy Wanderer Li 30A 12V PWM charge controller, which then goes into a 12-volt, 140-amp lithium battery. The issue I'm facing is that my 2000-watt Pure Sine Wave Power Inverter keeps power cycling because the voltage is exceeding 16 volts. I'm wondering if there's a way to keep the charge voltage below that threshold, or if my charge controller isn't suitable for this setup.
2 Answers
You might want to look at the manual for your charge controller for any specific settings or troubleshooting tips. Here's a link to the manual that could help you out: [Renogy Controller Manual](https://www.renogy.com/content/RNG-CTRL-WND30-LI/WND30-LI-Manual.pdf). It could offer some insights on why your voltage is spiking.
It sounds like there's a misconfiguration somewhere. Typically, the solar panel connects to the charge controller, which should regulate the voltage and keep it below about 14.6 volts for battery charging. Your inverter should connect directly to the battery, which normally outputs between 12 to 13 volts. Check your connections closely; something might be off.