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Originally Posted by poodlebone I've always followed Minimed's recommendation of using Energizer batteries. They last for about 7 weeks (one AAA). I don't use the vibrate alarm function but I do use the backlight a lot. Saving a few cents on no-name batteries isn't worth the risk. |
After having several Duracell mishaps with my 515, I took MM's advice and use only Engergizers. they last about 6+ weeks. The Duracells would generate a "Battery Failure" message after 4-6 days! I'd check their voltage at around 1.46. Energizers don't stop working in a 515 until they are depleted to around 1.36 or 1.38 (I forgot which). Something in the 515's battery indicator circuitry doesn't like the Duracells. I still feel foolish for arguing with MM over the issue. Turns out they were right--but they couldn't explain WHY I needed to use Energizers. Duracell button batteries worked fine in my 506/507/508 pumps.
