My VTX1300R won't re-start after charging. New battery, solid connections, headlight and auxiliary lights work fine

I think you need to have the BCM inspected or replaced if POSSIBLE .also,thoroughly inspect all wire connections, particularly in the regions where the mechanic had been handling the auxiliary battery.There could be a loose connection or any daamged wire

Maybe the deep discharge on battery trashed it and now it will not take a charge. Sure the charger is working? Give it enough time to charge the battery - at least five hours.

check the light switch for grounding

Check your connections at the battery. May have a bad ground or bad battery connection. Also check to make sure new battery is good by supplementing with a jump start. If new battery is good and connections are solid, you most likely have a broken wire somewhere. The lights may only work with the mower running though. I believe on my LA105 the lights only come on with the engine running and dim/brighten with the RPM of the engine.

Open hood and look at left side of engine compartment. Find the braid jumper going from engine block to fender. Grab hold and wiggle. It may be loose from corrosion at the fender end. If possible tighten. If not replace with a new heavy jumper from block to body of car. This a major design flaw since battery charging current and starter current is forced through this skimpy wire and connection. I replaced battery and alternator twice before discovering this defect.

Either its a bad new battery or tour altenator isn't charging it. Jumpstart it.

It had all the symptoms of a low battery. Glad you got it figured out!

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I would suspect a low battery, however I have to ask if this bike has a security system, as they cause problems, sometimes that mimic a low battery. Either way, I would put battery on charge, when it has a full charge, check for lights and starting. If it won't start, put a load tester on the battery checking for weak or dead cell.

check connections and wiring at battery and alternator then check battery and alternator -battery may not be holding charge and is dead and or alternator is not putting out enough of a charge or not charging at all some auto stores will check ur battery and alternator for free