JimmyB
Now retired - trains and fishing
As an observation - is the weight of the battery pack going to give a riding issue, or is it not heavy enough to worry about?
So I thought I would elucidate how I added weight to this tram, however this could be applied on any loco, I use divers ballast and resin.
In this case the additional weight is to counterbalance the weight of the batteries, which weighed in at 96 grams.
First I build a container from styrene that should be of sufficient size to hold the weight and will fit the location:
Although the container is thoroughly with a liquid styrene glue of your choice, in the instance Slaters Mek-Pak, experience has shown they can leak, so masking tape is applied to the container:
The weight of choice divers bagged ballast, (I use to use lead shot, but also no longer available). Working out that the resin required would be about 15 -20 grams, 80 grams was the weight of the container and ballast:
The resin mixed and poured, until the weight is achieved, in this case total weight is 96 grams:
Weight made it is fixed in place, in this case with Velco, I only use the genuine article, if it is good enough to hold some aircraft components in place it will hold this weight.