Topcon Sokkia CDC68 black dual charger for use with the black BDC70 and black BDC46C batteries. 
 
Input: 100-240V; 50-60Hz
Output: 8.4V
Charges two batteries at the same time
Works with Topcon BDC70 and Sokkia BDC46, BDC58, BDC70 batteries
 
*Note: This charger can ONLY be used with the black BDC70 and black BDC46C battiers