thread Re: My square is making a strange high-pitched sound while I am charging it. Has the battery gone ba in Payments Troubleshooting

My square is making a strange high-pitched sound while I am charging it. Has the battery gone bad?

JenFurlong — Sat, 20 Sep 2025 07:47:30 GMT

my Square is making a high-pitched noise when I charge it. It looks like charging. It is actually draining the battery. Is the battery bad? Does anyone have any idea what is happening?

Re: My square is making a strange high-pitched sound while I am charging it. Has the battery gone ba

JK_Fiber_Art — Sun, 07 Apr 2024 12:28:01 GMT

Hi JenFurlong,

It's possibly something called coil “whine”. The charger handles alternating current from the wall, and and may be a switch mode power supply, both of which mean the charger is handling electrical current that has a frequency. Normally, a charger or power supply, or AC adapter ( mostly interchangeable names) should not be audible. If your device is still under warranty, consider getting it replaced. The product may not be working as designed, and a defect in a power supply could indicate a possible point of failure at some point. Please understand, I'm not a Tech nor do I work for Square so my thoughts here are just that - my thoughts.

Your best option is to contact Square's Tech Support for advice.

Re: My square is making a strange high-pitched sound while I am charging it. Has the battery gone ba

_Violet — Tue, 09 Apr 2024 13:49:28 GMT

Hi @JenFurlong - Thanks for reaching out to report this.

As @JK_Fiber_Art stated, please contact our Support Team at your earliest convenience and they will assist you further.