# **Dual Battery Bank Wiring Diagram** Use the following wiring diagram if you are using the GP-PWM-30-UL to charge two separate battery banks. Connect battery bank 1 to the battery 1 terminals and battery bank 2 to the battery 2 terminals on the back of the solar controller. **IMPORTANT**: Ensure your primary/perma…
**Maximum Power Boost Technology™** Maximum Power Boost Technology™ (MPBT) allows you to override the normal charging algorithm of the solar controller. MPBT is designed to be used before the end of the day, if you know you will be running many loads through the night. This feature can also be used when you have just…
**Viewing the Controller Display Information** ![][1]GP-PWM-30-UL has two modes to watch the display information, manual and auto scroll. You can change between the two modes by holding down the A Button for 3 seconds. **Mode 1: Manually Scroll Through Display Information** ![][2]**Battery 1 Status Values** To to…
**Battery Charging Profile Chart ** ![][1] [1]: https://hf-files-oregon.s3.amazonaws.com/hdpgopower_kb_attachments/2020/02-13/9dddca6f-e574-4157-8e83-757a925df9a8/image.png
# Charging and Hardware Troubleshooting ### If you're having issues with your Bluetooth connections, [click here to view connectivity troubleshooting.][1] The solar controller requires power from the battery in order for it to operate (9-14 volts) . The first step in troubleshooting any solar controller is to determ…