It woudl be interesting to have this mod integrated into Modular train, I mean that a train equipment let you use the batteries instead of building a separate locomotive.

To me it looks like that would require multiple modifications of the Modular Train mod. Unfortunately, any modifications that this mod would force onto Modular Train might make it incompatible with any future updates of Modular Train.

Modular Train also solves electric energy transfers with runtime scripting. Being lightweight and therefore avoiding runtime scripting as much as possible is a design goal of the Battery-Electric Train mod. I’m not too keen on adding scripting to support another mod.

Modular Train already has electric engines. Why don’t you use those?

because (non electric) modular train have low use of scripting

having integration would allow low scripting use on electric engine

I made a suggestion on Modular train to allow mods to add their engine-equipment

It seems that you think that that change would be easy. I think it won’t be.

Sorry, but modifying other mods is beyond the scope of this mod.