I just installed a Shorai LFX18L1-BS12 battery to replace a dying PC680. The installation was easy enough, there were plenty of shims with the battery. The battery is coming up at 13.4V. I gave the plane a quick start, starting was definitely better. I got a voltage drop to about 9V while cranking (the PC680 was closing in on 6V). Once started, I switched on my alternator and was a little surprised to only see a slight voltage bump to 13.8V. This is 0.4V lower than the PC680 during charge. I cycled the alternator field and saw immediate drop and return to the same 13.8V.
My question is, should I be concerned about the lower charging voltage?
My question is, should I be concerned about the lower charging voltage?