My 6A has always been a bit heavier than I'd like so I decided since the AGM batteries were now marginal on resting voltage and passing the annual load tests, it was time to move them out and move some lithium batteries in. I also wanted to ditch the vacuum pump and 2 vacuum gyros. With annual time here, it seemed like a good time to do this work.
Vacuum pump was driven off the left camshaft.
Two Shorai 18 AH batteries will replace the PC680 main and Powersonic 18 AH backup battery.
Vacuum pump hardware out of the plane.
After weighing what's coming out and going back in, looks like I'll shed over 29 pounds total, mostly from the batteries. The 680 weighs 14 pounds, the backup, 12.2, the Shorais only 2.2 each.
Vacuum pump was driven off the left camshaft.
Two Shorai 18 AH batteries will replace the PC680 main and Powersonic 18 AH backup battery.
Vacuum pump hardware out of the plane.
After weighing what's coming out and going back in, looks like I'll shed over 29 pounds total, mostly from the batteries. The 680 weighs 14 pounds, the backup, 12.2, the Shorais only 2.2 each.