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Thanks for noticing. The connector for that red wire is too corroded to remove, so I used caulk in lieu of a nut. Great news! The switch from parallel to serial was a success and the gate still works. Hopefully, the batteries will appreciate the switch. Thanks everyone...great forum!!

Yes, the gate opener tech told me to do this. He predicted about 40V VOC and and 34 VMP. we'll see...

I guess you saved me from a real mess. Thanks much for speaking up. I'll try it tomorrow. Yes, there's a charge controller built into the board that operates the gate. It'll handle up to 80W.

I came back to check this before I snipped wires. Yikes...thanks...I think you're right. I found this in the info sheet that came with the panels. The documentation is upside down from the way the panels are mounted so I reposted the junction box upside down. I guess the new plan is shown...

I cleaned it some more using a toothbrush and terminal cleaner. The positive terminals are quite corroded. The negative terminals are OK. The junction box on the upper panel is in good shape, since it never got ants. I think I can leave the terminals alone and just cut three wires and change...

I have two 25 year old 12V Solarex VLX-32 32 watt panels hooked in parallel that operate a gate. Our old gate was 12V and the new gate is 24V. I'm told it would be better if the panels were connected in series. I opened the lower panel junction box and it was full of ant crud and the...

I have two 25 year old 12V Solarex VLX-32 32 watt panels hooked in parallel that operate a gate. Our old gate was 12V and the new gate is 24V. I'm told it would be better if the panels were connected in series. I opened the lower panel junction box and it was full of ant crud and the...