The battery, must be charged separately from the htc one v (although htc one v hard case you can use your htc one v's charging cable to do it) and will give up to 45 hours of use on a charge.It htc one v hard case looks kind of neat, if you really want such a bulky thing. I prefer Apple's Bluetooth keyboard as it is htc one v hard case small enough to sling in your bag, but separate so I don't have to carry it with the htc one v all the time. htc one v hard case In fact, I bought the Apple keyboard but almost never use it. Like Wired.com NY bureau chief John C Abell, htc one v hard case I find I actually prefer typing on the htc one v's screen. The auto-correct along with the big keys means htc one v hard case I actually type faster and more accurately on that than I do on a "real" keyboard.