I like the non-programmable motorcycle version better. I pulled the trigger on one. Now to fashion a mounting bracket. Think I'll reverse copy the choke lever mount on the handle bar bolt.
edit. I received mine today. I like it! The LED is big. I put it on a variable dc power supply, and it is accurate. It blinks green every 2 seconds when battery is between 12.5 - 12.8v. yellow between 12.4 - 12.1v, and red from 12.0 - 11.5v. Lower than that it goes blank. Solid green when charging, and flashes red/green if it hits 15v.
Two wires, red and black go directly to battery. Claims it draws only 0.5 mA, which is practically nothing.
Now to mount it.