Li-Ion Battery for HP iPaq rx3100, rx3115, rx3400, rx3410, rx3415, rx3700, rx...

• 3000 mAh High Capacity, 3.7V, with Longer Runtime
• Li-Ion Rechargeable Internal Battery
• Made from High Quality Japan Cells
• 100% compatible with original batteries and chargers
• for HP iPaq rx3100, rx3115, rx3400, rx3410, rx3415, rx3700, rx3715

I bought this for my Ipaq 3115. The useable life for this is easily 3 times that of the OEM battery. It requires a larger cover for the back, and the wrong one came with the shipment, but Ospray-Talon's customer support was very quick to respond, I sent them jpegs of the problem and they quickly sent a replacement cover. I get hours of life now for surfing and playing MPG4s. Product and company highly recommended.

Buy Li-Ion Battery for HP iPaq rx3100, rx3115, rx3400, rx3410, rx3415, rx3700, rx... Now

Even though this battery seems a bit bulky, you definitely get up to 5x more battery life out of it, that of course depends on what applications you are running in the foreground as well as the background along with a screensaver.