My adjustable voltage converter has a knob on top which I can turn to dial in a voltage while watching a voltmeter. It stays there till I dial in a different voltage, such as dropping it from a chosen Vabs to some chosen float voltage. I am the timer --which works for me, but it would be nice to be able to set times
With the PowerMax LK models, the knob on top is gone and you now poke a small screwdriver into a hole in the side of the converter. Not too bad if you happen to be able to get at the converter and see what you are doing at the same time as seeing a voltmeter.
Some sort of remote like wired or BT would take the awkwardness of that away no matter how far they stuck your converter in where you can't get at it in a dark cubbyhole, and it could have programmable timing parameters too besides adjustable voltages.
The converter itself would have to have adjustable parameters for the remote or BT to be able to change, so you couldn't just add one of these to your old converter.
The BT would only monitor what the converter is doing, so you would still need a battery monitor to see what amps are going to/from the battery and do AH counting
EDIT--I was thinking they should be able to have the voltage adjustment on a sliding scale with a readout of the voltage, sort of like the way you can set the volume of your ring sound on a cell phone