I just installed a new Cicada DSP150.4d amp and some Hertz bag speakers in my 2016 Ultra. I was out jamming yesterday for about 150 miles loving the new system. Today I went to start my bike and it barely turned over. Is my amp pulling so much juice that it wasn't charging my battery? The specs say say the amp pulls 40 amps for music and 80 amps max. That's a whole lot of juice if accurate.
Before I sat and really thought about I went ahead and ordered a new battery figuring the one I had was probably OE. Turns out it was manufactured in 2021. I'm glad I was at home when it didn't start, but damn... If it's what I suspect does this mean I need to install a 54 amp stator? That sux if so.
Also, I don't think it's parasitic draw. The amp shuts down when I shut my Sony XAV AX7000 off.
Thanks.

 

if you want to make sure you don't have a parasitic draw, disconnect the ground from the battery and place your volt meter between the ground cable and battery ground post. if it reads 0, your good, if not...
You can do it on the positive side as well, but I like using the ground side so you can't accidentally ground out the battery.

 

You mean ammeter right?

 

actually, either works. if there is a parasitic draw, it will show up as a voltage on a volt meter, or amperage on an ammeter.

 

There will be some draw for memory and alarm system. You can start pulling fuses to see where the drain is coming from.

Make sure your charging system is working correctly too.

 

Your OEM stator #29987-06D is a 3-phase, 50 AMP stator.....

If those amp specs are accurate, just a slow cruise, blaring tunes, with all the other electrical stuff going on for the bike to function.... it seems totally possible, or even probable, that you are using more juice than the stator is making.... thus wearing down your battery...

There are many ways to fix that, but it all boils down to the math... amps in v amps out...

If your electrical system checks out to be healthy, the cheapest fix may be to get an amplifier with lower power consumption....

 

Thanks. I didn't realize it was already a 50amp stator. I did notice the volt gauge was up around 14.7v while I was riding so I believe the charging system is working like it should. Way too coincidental that this happened after I installed the amp.
I put the battery on a charger last night so I'll throw it back in today and run some tests.
Cicada claims this is a purpose built motorcycle amp so I doubt they built it so it would be a battery killer, but who knows.
Thanks for the help.

 

Like Black ultra said, with everything off, disconnect the negative wire to the AMP, use a voltmeter between that wire and a good ground source.
It should read 0, If not the AMP's not shutting off. Then disconnect the signal wire from the head unit and test it again.
If the grounds go to 0 the head's unit signal wire isn't turning off, if it still reads voltage between grounds the AMP's internal off switch is defective.
It's easier to test for voltage than DC amperage, not all clamp-on multi meters can read DC amperage but ALL multi meters ca read DC voltage.

 

If your voltage is 14.7 running with radio on its not overtasking the charging system.
Make sure your amp is shutting down when off or some parasitic draw as others have mentioned.

 

Thanks. That's what I thought about the voltage. Must be the amp not shutting down even though the lights shut off when I shut the stereo off or just a coincidence with a failed battery.