This week Google added spare Nexus One batteries for sale in the official store. The best thing about it is that they’re only $25 a piece, plus shipping. This is considerably cheaper than the $50 price tag that some phones fetch. I haven’t had any problem with the Nexus battery life and always travel with my charger, however that’s a price worth considering picking up a spare. So now we’ve got the dock and now a battery. Hopefully there will be more accessories to come, such as the car mount.