This post should where has the power gone! When the fairing was refitted, the USBs were connected up. It was a real treat to see them work first time. The USB with voltmeter was particularl good. I turned the bike off and left it until the next time I was able to do some more fettling.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgerjgYF9gAY8K8N2VCcLT8efnDCa4N2P1ve3-EySAZTbrPFZZCbHxtAJdk2zdqjZqvRYi1_RO8ASxfYMXM5WV5dL1zSZxOTc4T1cLRWlj0OrvUQkzT69W3xh-ZMkq-3fZnJWq4rCLZRhkl/s200/USB.jpg)
At the next visit I turned the ignition to be greeted with the sound of relays clicking and dull dashboard lights. I looked at he voltmeter and it was showing 9 volts. It occured to me that the LEDs onthe USBs had run down the battery over a week. I connected the batery charger and went away to think about the situation. I decided to test the hypothosis. Once the battery was showing recharged I pulled the fused for the USBs and sat back to see what would happen. I went back to the bile a few days later, using a multimeter i tested the voltage of the battery. It had dropped again but not quite as far. The new fuse box has LEDs to show when a fuse has blown. It was with some frustration I disconnected the power feed from the battery to the fuse board. The charger was reconnected. The voltage was checked after a few days. No loss of power and the bike would start on the button. Now what?
It took a few minutes for the issue to percolate in my bonce but the action was clear. I need to switch off the fuse booard when it is not needed. I could wire a switch into the heavy duty power feed so the solution had to involve and relay. I had a suitable relay in the tool box. I changed the post terminal tag connect to the live feed wire from the battery to a spade connector. That connector went on the replay. I made a jump wire with a post connector one end of the 27amp wire and a spade on the other end. Now I had a relay in between the battery and the fuse board. The wiring was checked with the multimeter. there was no current getting the fuse board. I put two spade conectors on the wires of a twin cable and conected them to the switch side of the relay. I stripped the wires at the other end of the cable and touched them off the battery. The repaly and fuse board reacted when power was applied to the switch wires. So that works.
The relay needs somewhere to live. Luckily the battery box has a handy size void at the rear of the box which forms part of the rear inner mudguard. It was a simple job to drill a hole through the mudguard, its plastic, and use a plastic number plate nut and bolt to secure the relay to the mudguard. I had measured the jump wire to allow the relay to be fitted in the void.
The only problem is that I now have to decide where the switch is to be fitted and what type of switch to use. Then I have to buy it. Then fit it.
I had a suspicion the battery would not be capable of sustaining so many warning lights. the battery is tiny compared with that of a BMW which is essentially a small car battery rather than a standard bike battery on the pan. The difference is clear but now I have resolved the issue.