Realizing that I will have to store most of my PS2.0 engines, I decided to remove the batteries in case of leakage. I haven't done this yet, and will likely do a couple at a time (dread doing the 4 Bipolars). Since I hate having to disassemble these things, I thought why not bite the bullet and install the charging circuit, so that in the future if I want to run the engine I can simply put it on the tracks. Other than the cost as compared to batteries, are there any downsides to the circuit, other than having to wait a minute for the circuit to charge before running the train? I assume the engine will remember its features as programmed. I have older PS2.0 engines (14 years) and new ones (6 years) so I am guessing the BCR is for the older ones and BCR2 is for newer ones, but need to verify that. Also, since my engines may be stored for many years until theoretical retirement (>10 years) until I can consistently run them again is there any downside on installing the BCR circuits now and having them sit for what could be years? Many of them have already sat for at least 5 years.
Does the circuit simply plug into the battery connection or is there wiring connections to make?
For engines with smoke units, is there any advice to storing them, e.g., wetting the wicks every 2-3 years?