I bought with my new Canon SX220HS this spare battery, which comes from the company chip-tip in Hamburg. However, the battery know some differences to the originals. He does not hold nearly as long as by the original battery, which indicates either a used or a counterfeit battery. He is also processed worse, the plastic has arched up and you feel a gap between the inside and the plastic wrapping. The text on the battery is at the Buy your different here, for example, lacks the production date, there is no CE mark available and also the disposal instructions are missing.
If you want a proper battery, they do not buy from the dealer chip-tip!