I don't think the product itself is bad. However, we used it in our old wall cell phone that ran on the same battery for many years. The first battery lasted about 15 years(!), the second about four or five, and this was the third attempt. However, it will not hold a charge. My guess is that the phone itself and charger just expired as I've heard from other people about similar experiences with older phones. The battery itself is probably fine, but we ended up replacing the phone with a Panasonic.
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