Here's a challenge/idea for someone. How about leaving the existing battery mounting in place, but adding some connections that lead to an external socket. Similarly fit a battery holder to a closed wagon or carriage with an external lead and plug.
This way if you want a speed boost you could add the wagon/carriage and plug it into the loco's socket giving a voltage boost. Alternately have a looped plug that you can plug into the socket when you don't need/want the voltage/speed boost and want to run on the standard battery(s).
This way you get the best of both worlds, you could even potentially rig up something so you could take the wagon/carriage and plug it into a charger so that you just have rechargable battery(s) inside it and charge them in place rather than having to open it up when you want/need to change them
Using this sort of method you could potentially mod all your locomotives and have the option to boost any of them...
This way if you want a speed boost you could add the wagon/carriage and plug it into the loco's socket giving a voltage boost. Alternately have a looped plug that you can plug into the socket when you don't need/want the voltage/speed boost and want to run on the standard battery(s).
This way you get the best of both worlds, you could even potentially rig up something so you could take the wagon/carriage and plug it into a charger so that you just have rechargable battery(s) inside it and charge them in place rather than having to open it up when you want/need to change them
Using this sort of method you could potentially mod all your locomotives and have the option to boost any of them...
![[-]](https://www.blueplastictracks.org/images/collapse.png)