Black & Decker Black and Decker & Grass Hog Electric Trimmer  "replace battery screwdriver" Questions

Is there a replacement battery available for cordless screwdriver KC9036 Replacement batteries Batterie 3 6V 2 1Ah pour KC9039 et KC9036

...find a 12V 5.0AH rechargeable battery, like the kind used in many home alarm systems. You can get a replacement at most battery stores (they'll even pre-charge it for you). Somewhere around $20, I ...