In order for you to know what to expect from a Refurb® product, A, B, and C gradings are used.
Grade A
Refurb® items in very good condition, where small scratches may occur. You are guaranteed a battery with at least 80% of the original capacity.
Grade B
Refurb® items in good condition, where more obvious signs of wear than Grade A occur. You are guaranteed a battery with at least 80% of the original capacity.
Grade C
Refurb® items in less good condition, where significant signs of wear cannot be avoided. You are guaranteed a battery with at least 30% of the original capacity.
Please note that for all items, the battery warranty applies for 1 year from the date of purchase. Batteries are covered for a shorter period of time, as they are consumables which can be expected to deteriorate over time, and how long a battery can maintain capacity is highly dependent on usage patterns.