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Jacobpac
01-11-2018, 05:47 PM
I need help. I have 2 strings of 144LED neopixel strips connected to prizm5.1. On certain colors it gets very distorted sound (orange, purple etc) green and blue haven’t caused any problems. I’ve different batteries with the same result.

Please watch this video

https://youtu.be/S111HdYYyD4

Any ideas?

RarestSquirrel
01-11-2018, 06:27 PM
Boy, that's an unpleasant sound.
I've noticed similar when my keeppower 3500mah 10a battery gets down to the last legs of a charge. Glitches in turning on and in changing fonts and all that fun distorted mess.
Can you confirm the amperage your batteries are capable of discharging?

Jacobpac
01-11-2018, 07:13 PM
Boy, that's an unpleasant sound.
I've noticed similar when my keeppower 3500mah 10a battery gets down to the last legs of a charge. Glitches in turning on and in changing fonts and all that fun distorted mess.
Can you confirm the amperage your batteries are capable of discharging?


I currently do not have a way to test the battery.

RarestSquirrel
01-11-2018, 08:12 PM
I currently do not have a way to test the battery.

I was thinking more finding the tech specs somewhere, but in either case you need one that can spit out(discharge) at least 10a. There's a possibility the ones you've got can't do so, thus the screwy noises.
I know for certain the Keeppower 18650GA works with two cut to 116 pixel strips. Are you using all 144 on both strips?

jbkuma
01-11-2018, 11:32 PM
As rarest squirrel said, make sure your battery is capable of delivering the current. Make sure it's full charged and ready to go. That battery holder could possibly be an issue.

Do any of the wires feel warm to the touch? The wires coming off the battery holder look rather wimpy. The general recommendation is at least 24AWG for the power lines to the pixels, if not better.

Jacobpac
01-12-2018, 05:19 PM
As rarest squirrel said, make sure your battery is capable of delivering the current. Make sure it's full charged and ready to go. That battery holder could possibly be an issue.

Do any of the wires feel warm to the touch? The wires coming off the battery holder look rather wimpy. The general recommendation is at least 24AWG for the power lines to the pixels, if not better.

Thank you for the responses. I’ll try larger wires first. Then a different battery.

Jacobpac
01-12-2018, 05:23 PM
Thank you for your response. I cut off some of the length. I’m running 2 strings of 135. I’m going to try larger wire then a different battery. I’ll keep you posted

Keivan
01-12-2018, 11:10 PM
I have the very similar problem I just posted my saber and its static distortion sound, let me know when you fine a solution, that is wired

K


Thank you for your response. I cut off some of the length. I’m running 2 strings of 135. I’m going to try larger wire then a different battery. I’ll keep you posted

Tom Tilmon
01-13-2018, 11:33 PM
100% Dead Battery. That is what the sound does on a dead battery. Your battery needs to be charged, or you need a new one if it won't take a charge.

TOm

Keivan
01-14-2018, 01:10 PM
100% Dead Battery. That is what the sound does on a dead battery. Your battery needs to be charged, or you need a new one if it won't take a charge.

TOm

that is absolutely right, I charged my battery which it took close to 24 hours and the sound is gone, thank you Tom

RarestSquirrel
01-14-2018, 02:55 PM
that is absolutely right, I charged my battery which it took close to 24 hours and the sound is gone, thank you Tom

What are you charging with mate? The electric potential of a potato?
Do yourself a favour and get one of the smart chargers from nitecore or xtar. An i4 should have it charged in a couple of hours and you'll be able to confirm that its hitting the correct voltage.
You can just hook up a charge plug to the + and - of the charger and use it like any other charger. Or just pop the battery and plug it in.

Keivan
01-14-2018, 10:27 PM
What are you charging with mate? The electric potential of a potato?
Do yourself a favour and get one of the smart chargers from nitecore or xtar. An i4 should have it charged in a couple of hours and you'll be able to confirm that its hitting the correct voltage.
You can just hook up a charge plug to the + and - of the charger and use it like any other charger. Or just pop the battery and plug it in.

Hey there Im using the smart charger from the custom saber shop "Li-IonCharger" and i made sure it was on the right voltage,

:D

RarestSquirrel
01-15-2018, 03:29 AM
Hey there Im using the smart charger from the custom saber shop "Li-IonCharger" and i made sure it was on the right voltage,

:D

Huh. Weird.

Safe to say I still highly recommend one of the nitecore suckers if it truly takes 24hrs to get a 4.20v~ charge.
Just charged mine today and it only took 3.5hrs with a nitecore d4. Slow even by the more modern chargers.

ps,
Jacobpac, sorry mate. Derailed your thread a bit, but its probably relevant given you two are experiencing the same issue.

GavilanOrd
01-16-2018, 05:10 PM
Hey all - did you hear that high pitched noise right around :43 seconds after he ignites the blade and before the popping starts? Is that due to low battery as well? I get that no matter what my charge is and that noise sounds exactly like mine.

jbkuma
01-16-2018, 08:51 PM
Hey all - did you hear that high pitched noise right around :43 seconds after he ignites the blade and before the popping starts? Is that due to low battery as well? I get that no matter what my charge is and that noise sounds exactly like mine.

What battery are you using? How many strips and pixels? If your battery can't handle the output it will sag (out put a lower voltage than when unloaded) below the operating parameters of your electronics.

PCModulus
01-20-2018, 02:35 PM
Next time, hold the phone sideways, watching vids like that hurts.

starlighter1212
05-04-2019, 12:47 PM
I'm having this same issue. The noise is only happening on colors with Red in them. Ice Blue works fine.

Tom Tilmon
05-05-2019, 08:47 PM
If you are using an improper battery, this is common because of the high drain neopixels can put on the battery, it may cause the amp to drop out due to lack of power. You must use a battery with appropriate drain for neopixels.

scott
05-07-2019, 06:15 PM
I had the exact same problem and bothered Tom T with troubleshooting...switched to 15a 3.7v and all was well...for sure can’t use the standard 5a Battery.