Really appreciate the ease of switching these out, but it only worked as promised for about a week or two, and then wouldn't hold a charge for more than an hour. Very disappointing performance for an OEM battery of this type.You might get more life out of it by not deep cycling, i.e., keeping your PDA in the charging cradle and not letting the battery drain almost completely before recharging.. or so I've read.After my experience with this battery, I would not pay more than $10 for a new one. In fact, I'd rather buy an extended life battery, so I could use my PDA for more than an hour.. or maybe two of these? Nope.