- C-Type batter- 1.2V- 4000mAh- Ni-MH<br />- <strong>Good News (10/3/2008)</strong>: this product is now?shipped with 4000mAh capacity (up from?3500mAh).                                                                                                                                Dimensions: 1.97 in x 1.02 in x 1.02 in<br />Weight: 2.65 oz