Voltmeter + Park light Reminder!!
 

I got around to fitting a Gammatronix battery level / charging indicator today. I took the supply from the infamous spare connecter behind the dash so it's switched & also comes on with the key in park light position as a handy reminder when the bike gets parked up in a hurry. I bought it off eBay as suggested by Pleiades (Thanks mate) it was a simple fit. Glows green when all is well, yellow when somethings not so well & red when there's a real problem.
Some spot lights are next on the list.

http://images.tapatalk-cdn.com/15/10...123ba9e1f8.jpg

Sensible bit of kit. I fitted mine years ago, but I also made it switched as it can be a bit obtrusive in the dark.
Mine will actually go orange if I have everything switched on and in traffic for any amount of time.
Does the job

PS Just for others' information, I do have an old 250RS Honda and got a small gizmo off the evilbay that fits into a cigarette lighter socket and shows battery charge, air temp and has a USB port!
3 in 1 Car Thermometer Car Voltage Detection Table USB Port Charging Sale-Banggood.com