Is this a good one to start with or should I buy something else. All help gratefully received
It's hard to say just from looking at the pictures it looks like a 510 threaded battery of unknown quality. In my mind just the fact that they don't give any information is cause for suspicion.
If you want to stick with a small cigarette like battery the 510 from:
Electronic Cigarette - Batteries - 510
Along with some boge cartomizers is a better way to go. You will need more than one in any case. At least one charging and one to vape. Three would be better.
The next step up would be a Joye ego. By better I mean mostly bigger but the quality in terms of battery life will also be better. In vaping bigger is almost always considered to be better. On the other hand it is also a matter of personal choice and what works for you. So don't be intimidated by people who claim you must have a bigger battery.
The next sep would be an even bigger battery.
There are also several variable volt models but they are more expensive. Those would be the best way for a beginner to start if they know they are going to keep vaping.