Yeah, With the engine running I would think 13 would be about normal. Have you looked at LED or HID replacements yet? Or even brighter Halogen?
I would look at the #'s on the OEM bulb(S) first and do some searching on the net. Thats what Im going to do when I have time to mess with this project.
Let us know what you figure out.
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2017 Axis / 25.4: Big Foot Levelers, Aims 1200 Watt inverter, Ceramic Window Tint, Full River AGM 6V batteries, Front Hellwig Sway bar / Rear Track Arm, Safe T Plus Steering Stabilizer, PD 4655 converter, Hard Wired Surge Guard, WEboost + WiFi Ranger, LED Headlights/Driving lights, TPMS, Surge tank, Tornado flush, Viair Compressor
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