We sold hundreds of ST4s before we created the Vmount and Gold Mount battery plate options that are offered standard on all new Spectrum ST4's. If you own one and want the added convenience of an attached click in battery source, then you can upgrade by sending your unit back in by buying one of these tow products in our store and interacting with our support to line up the retrofit.
We get asked a lot about if we can just send parts and instructions to do this. The answer is no and for several reasons. In short, it is complicated and there are many places where things can go wrong. When things go wrong, it takes a lot of our time figure out what that is. Support and Troubleshooting time is expensive and never conclusive remotely. Units would have to come back. In the end, a broken unit or fixing issues with an almost-right upgrade will likely be quite expensive and we have to pass that cost back to you.
We know we will can perform the upgrade in a safe a predictable period of time. We know the results will be great. We have tried to price that competitively and encourage you to choose this.
"Hey, read some words, but got board and I am super smart and want to do it on my own."
Nothing is stopping you. It's your product.
"Will you support me or send me parts?"
Please read more words.