The above article is an original battery for your Nitro 5 AN515-54-77CK. It is ideal as a replacement battery for your existing or defective Nitro 5 AN515-54-77CK. It can also be used as an additional spare battery for travelling. It can be handled and charged as usual with the standard mains adapter/charger. The electronic protection against overcharging and short circuits offers you a high level of safety. All batteries are new and unused. Our own quality assurance guarantees a high standard of quality. Note: If we do not expressly state that this is an original product, we are supplying a compatible product. This means that it is not an original product from the manufacturer and is therefore not manufactured or recommended by the manufacturer. All brand and product names belong to their respective owners and are used only to describe compatibility.