iPhone 3GS 8GB in Black in Plymouth, Devon for sale

I have an iPhone 3GS 8GB in Black For Sale. Has been used so the black gloss back does have hairline scratches on it and a few tiny ones on the screen. Just normal cosmetic signs of use, no cracks or chips. Nothing severe but had been used. Handset is locked to Orange/EE. Had both networks SIM cards in and it works fine. It's all boxed up with charger and instructions including the release tool. The only problem is it keeps switching it's self on and off when it's gets to about 40%. Think it just needs a new battery which you can buy on Greatbritainlisted for about £5 or take it to the local market for about £25 and they will replace it. I have priced it accordingly at £45 due to the power problem. Any questions please just ask.