Yeah, that’s a huge design fail on the super-bright always-on green battery LED (when keypad is powered)! Should have had it only light up on motion sense like the keypad digits when the battery is fully charged. Even if it does require a hardware change, PLEASE rev the hardware soon and fix it! Your customers are suffering.
While you’re at it, the keypad & mounting bracket have a major design flaw in that they do not easily support the USB power cable coming out of the wall instead of hanging straight down outside the wall (in which case you can use the groove in the back). It’s just BARELY possible to slide the keypad into the mount when the cable is coming through the wall, and requires bending the heck out of the cable (likely to fracture wires if done repeatedly).