12.0V, 2100mAh, Ni-MH Battery fits Festool, Tdd12, Tdd12es, 25.2WhBattery Fits Models: Tdd12, Tdd12es, Tdd12fx, Tdd12mh Battery Part Numbers: 489 003, 490 021, Bph12, Bph12t, Tbp12 If you are worried about the quality or the performance of the products from Cameronsino, take a look at the reviews from our customers. Sound quality is assured as the products are manufactured to a very high standard The battery shown will replace your original and provide you with an economical alternative to expensive OEM batteries;