Thank you for your great question! The correct replacement for the SR920SW is the Energizer #371/370. Hope this helps. Any additional questions, let us know here or give us a call at 1.800.383.7323.

Yes. Energizer manufacturers a 371 battery that is the replacement for the SR920SW. While distribution may vary from store to store, our records indicate that Walgreens carries this particular type.

While distribution often varies from store to store, our records indicate that the Energizer A544 can be found at a few of the national Hardware retailers as well as Sporting Goods. Unfortunately, this is a type that does not have mass distribution given that it is a very specialized battery for only certain devices.

Hi Joel, thank you for this great question, I would be happy to assist you. Regarding the A544 battery, this has a 3 year shelf life. There are two ways of detecting this, one take a look at the "copyright" date on the lower left of the package in the back, add 3 years to that. You can also see it etched on the body of the battery itself.

Please feel free to contact us with any additional questions or concerns.

Thank you for this great question, I would be happy to assist you. Regarding the PX28G, yes, the A544 battery will be the right replacement.

Thank you for taking the time to contact Energizer.