This would be a separate unit that you plug the battery into and then you run a battery test. Perhaps have a digital screen and be able to look at the 12 hour , 24 and 36 hour. It could connect to Wi-Fi so once you have your test results, you could send the info to Cobra and they could tell you if the battery is good or bad.. The unit could also charge extra batteries. And also calibrate them if needed.
Then I don’t need to be turning on mods and coming back and checking them all the time the unit could just run the battery test.