Unless your **** bent on having the charging feature. It's just as easy to turn off the base charger and grab yourself an external charger with extra batteries on Amazon.
I never bothered to see if my base charger even works. I don't like the idea of leaving it on all the time. My base is unplugged when not running trains.
This seems like cheap insurance from damage caused by a power surge or possible component failure from simply being on 24/7. Especially now more than ever. Since these bases are discontinued.
I just leave it on plugged into a timer set to one hour after using it.