I had my battery on a trickle charger for almost 24 hrs, bike started fine when i took it off, went for a ride and when i got back the bike wouldn't start, sounded like the battery was dead when I tried to restart it.
SOURCE: Battery drained while riding
chek your connection where the alternator plugs into your engine casing & spray it with electrical contact cleaner
SOURCE: Bikes dead!! Battery wont charge, been charging all night Help!
You didn't mention if you charged the battery in- or out of the bike. If H-D has a modern alternator, it may have failed diodes that are draining the battery and stealing charge current if charged while connected. If the battery was made in China . . . oh, well.
SOURCE: harley davidson battery went dead after riding
1.What?
2.What?
You charged the battery off of the battery charger with a trickle charge. The battery wouldn't charge while you're riding, because your alternator took a cr@p.
(Sorry if I seem gruff, but I'm an old biker, and Harleys are all I ride. I'm also a Harley mechanic.
Shhhh! I don't want that to get around! lol!)
3.Battery is at 13.4 volts now? What is the specific gravity of the acid in each cell? Don't have a hydrometer? Do you have a load tester? No? Since you measured the voltage, do you have a multimeter?
Test the voltage with the bike running. It should be around 14.6 volts when charging, less with the battery fully charged.
Don't get the correct reading, then you better look at alternator replacement. (Regulator is built in)
SOURCE: Battery slowly discharges on my 2002 FXD when engine runns
So you're running off the battery instead of the charging system, check all your wires from the alternator to the regulator/rectifier for open connections or shorts to the frame. You could have a bad rectifier if it's separate from the regulator, you may also have a bad alternator, if you've got a multi-meter check the AC voltage between the ground and each of the three wires coming from the alternator (usually yellow). They should all be about the same, and measure over 16 V, increasing with RPMs. Hope that helps
SOURCE: 883 wont start
The battery might just be done or warn out, if you get lights when you turn the key on, and can honk the horn and everything, then it should click, if you are able to honk the horn and lights etc. and they aren't real weak, when you hit the starter it should tick, if your lights are bright and horn is loud and brake light responds quickly, then I'd ask a Harley dealer about it.
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