Battery not charging on Monster 2009
Anyone have experience with Monster battery not charging?
If stator diagnosed as OK, regulator replaced, what are the other suspects?
SHORT
- Battery starts at 12.3v and ends 3-4mile ride at 10.5v
- Motorcycle Mechanic (MM) voltage tested stator and OK
- MM recommended replace REGULATOR but battery still not charging
- Rotating through 2 different batteries and both end with low voltage
- Acid battery 18mths & 3 mths old
LONG
- Bike (12,500 miles) complete shut down at traffic stop and would not start again
- Had it towed
- Figured it was bad battery and bought Li-Ion battery but that died
- Went to mech shop for help and they tested with voltage meter
- Battery and Stator ruled out as OK and replaced regulator as likely culprit
- Battery still not charging and voltage reading in the 10s according to bike OSD
- Spark plugs replaced
- Never had issues with bike running until 3 months ago with the shut down
- Installed, pigtail for battery tenderer, front and rear cameras
- Using Noco GENIUS1 to charge batteries. Supports acid, AGM and Li-Ion
- YTX14H-BS 18mth old
- Caltric Agm Battery 3mth old
Check the large fuse for the alternator. It's not in the fuse block. It's in line near the battery.
Wiring to/from regulator OK? Check at engine block and connectors.
What regulator did you buy?
Quote from: ducpainter on March 19, 2023, 04:04:11 AM
Check the large fuse for the alternator. It's not in the fuse block. It's in line near the battery.
Will try replacing all the fuses to rule them out. Thanks for highlighting the alternator fuse
Quote from: greenmonster on March 19, 2023, 05:09:00 AM
Wiring to/from regulator OK? Check at engine block and connectors.
What regulator did you buy?
I bought a Ducati OEM regulator
For anyone else who has similar issues, turned out to be the regulator.
Bought a new regulator from Amazon for USD25 and now the instrument panel shows 13.8-14.3v.
Thanks to everyone for their input and suggestions
Quote.I bought a Ducati OEM regulator
Quote.Bought a new regulator from Amazon for USD25
???
So why didn`t the Duc one work?!?