Hey folks, So I picked up one of these for £33.30 (I'm British and had a discount code) because I thought for that price, why not? Anyway I've been having a bit of a play with it, see if I can squeeze a little more functionality out of it and the first thing I thought was to improve the battery life, which is fairly poor. Unclipped the case and had a look, lo-and-behold the battery is tiny! I've done a quick google search of the serial numbers printed on the back of it and from what I can gather it's basically an iPhone 4 battery, albeit most likely just a cheap replacement and not an OEM quality iPhone component. Whilst I'm a dab hand at soldering, I don't know a thing about batteries, so all I can gather form this is that it's a 3.7v battery which charges at 4.2v (please correct me if I'm wrong). Since there's so much free space inside the case, I'd like to put in a bigger battery with a higher mAh to increase the battery life of this thing. My question to you guys is how can I find a suitable battery to do this?