7.2V, 3800mAh, Ni-MH Battery fits Nikon, Dtm-500, Dtm-501, 27.36WhBattery Fits Models: Dtm 500, Dtm 501, Dtm 502, Dtm 600, Dtm 800, Dtm 801, Npl 821 Battery Part Numbers: Bc 80 The battery shown will replace your original and provide you with an economical alternative to expensive OEM batteries; we also guarantee the battery to be fresh and free from defects. Cameron Sino batteries have manufactured generic batteries for many years. We offer the freshest batteries straight from the manufacturers; they are reliable