Sounds like a smart buy to me. If you have multimedia habits you know that the G1 runs out of juice really quickly. Amazon is offering this combo that has a T-Mobile G1 Case + Charger + car charger, for 14 bucks. I’ll give it a try. If it’s not good enough I’ll just return it ’cause it’s Amazon!
Here is a nice G1 Accessory, wall charger for the T-Mobile G1. Avoid depending on the computer’s USB to have charge on your G1 Phone. The T-Mobile G1 Phone’s resources will surely get a lot from your battery, so just grab a non-expensive high-quality one.