03 vtx 1800 battery /charging system

I have 2003 1800 retro
I can get about 15-20 starts from the battery and then it's to weaK to start. I have gotten to the point that I carry a charger with me and when we stop overnight I charge it. It will run all daywith out dying on me but have gotten stuck in some bad positions before ,( like walking 2.5 miles to buy new battery)
Problem is I have 4000 mile trip next month and would really rather have this problem solved ,especially since I just installed fairing with stereo. I dont want to stop for gas and have to ask for a jump to get started again.

I don't think it's the alternator or regulator if you can run it all day with no problems....There should be a procedure in the service manual for checking the alternator...

I did a little googling on VTX's and found this...which could be a culprid...

?Ground Fix? for VTX 1800 Bareass Choppers Motorcycle Tech Pages

I think if you're going to need to get the factory service Manual if you plan on keeping the bike...even it you don't keep it,the next owner will appreciate it....

Good luck...let us know what you find...:cheers:

If it's a new battery or just starting for the first time of the season, it may not be properly charged-up. You should slow-charge (1-1.5 amps) overnight for at least 8 hrs.