HEYVALUE 3.7V Galvanic Rechargeable Battery Pack, 2.5 Amp, 2.4x1.0x1.5 Inches, for Emergency Backup and Portable Electronics, Model Gb-37

Works for my bluetooth speaker.

I took a chance this battery would work as a replacement for the dead one in my X-Sense driveway sensor. The battery fit the available space exactly but does not have the correct connector to directly plug into the sensor. I was able to make it work by cutting off the attached connector and splicing the connector from the X-Sense OEM battery to it. The sensor is now returned to service and working properly. Please do not attempt a modification like this unless you have the correct tools and accept the potential damage you can cause to your sensor. There is limited space in the sensor case so you will need properly sized crimp connectors and heat shrink tubing to protect the circuit board from contacting the splice.

Good replacement battery.

Used this in a rechargeable light that had an old and dated battery. Replaced the battery with this one and it's back to working like normal. Can't get it to recharge, but unsure if it's a problem with the battery itself, or the light.

great product thanks