Hi all, I just found that SmartDisk is having another one of their 50% off sales. The last time they had one I was able to get a new battery for my Duo280c for just $50. Oddly, it looks more like a type 1 (a more elongated button on the sliding cover), but it works perfectly. It says that it's for the 2300 but no doubt you can use it with any Duo that can handle the Type 3 battery. <http://www.smartdisk.com/WinterBlowoutPricing.htm> Make sure you use the coupon code during checkout. -Mark PS. There's a bunch of stuff on the page linked above but I think the battery is near the top.