New to the PSR-500 scanner so this question may ring of newbie, but here it goes. I use NiMH batteries so I set the battery type to NiMH seems reasonable. When I look at the charge time setting its default is 99, but the docs say the default for NiMH is 16 hours. So I’m confused as to what the charge time settings are calibrated for, does 99 just mean use default (16 hours) and any other number would equal to hours or does it mean it charges for 99 hours?