2020 Hyper 950 SP Ongoing Battery/Charging Issues, Low Voltage, and Starting Problems

Hi, I have a 2020 Hyper 950 SP, now with about 7000 miles (previously posted when it had 6000 miles), and I've been dealing with persistent issues related to the battery/charging system. Even after a year and about 1000 more miles, the problems continue.

• When in a lot of traffic and hot >217 F and the fans kick in, the voltage drops to the point I get a low voltage warning and the idle RPM increases. This is noticeable even though the battery voltage at the terminal reads OK, and the battery is fully charged. However, on the dash, it reads approximately 1 volt lower.
• Sometimes, when I start the bike, the fuel pump primes, and the engine cranks and starts, but it dies after 1-2 seconds. Turning the ignition switch off and back on usually resolves this, and it starts normally again.
• A year ago, I noticed one of the pigtail pins leading into the fuel pump was burnt and out of place. This caused intermittent malfunctions of the fuel pump, as it would intermittently stop working while riding or not prime when turning on the ignition. I cleaned the pin, added dielectric grease, and adjusted it so it wouldn’t move, which seemed to fix the issue temporarily. It hasn't caused problems since then, but I'm not sure if it's contributing to the new starting issue.
• The heated grips still do not consistently activate because the dash reads the battery as low. They would sometimes turn on after pulling some wheelies but then turn off again after a few minutes, which made me think it was a charging issue.
• Voltage Readings at the Dash:
  • With the OEM battery, voltage was:
    • Engine off: 12.1V
    • Idle: 12.3-5V
    • 3000-3500 RPM: 12.6-7V
  • I replaced the battery with a Shorai lithium-ion battery:
    • Engine off: 12.7-8V
    • Idle: 12.3-5V
    • 3000-3500 RPM: 12.6-7V

These issues persist despite the dealer changing the voltage regulator and installing the new battery. Any advice is sincerely appreciated!

Dead alternator, obviously. Should get over 13v with the engine spinning.

nickwst4 said:

Dead alternator, obviously. Should get over 13v with the engine spinning.

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I thought that too but the battery doesn’t actually discharge from regular use, the dash reading seems to be fully wrong since when I measure voltage at the battery terminals its almost full

Well, if not dead, maybe some of the coils are shot and you are only getting a trickle charge. You'd think a proper Ducati mech would sort this very easily. New batteries and probably regulators are always worthwhile but there's a fundamental problem here. Good luck getting to the bottom of this.

I’m suspecting a bad ground somewhere so gonna inspect those next.