DuraTrax Onyx 100 AC/DC Peak Charger for Nicd and NIMH Batteries.

AC Input: 110V AC 60Hz
DC Input: 11-15V DC, built-in lead with alligator clips
Battery Types: 4-8 cell NICD and NIMH Cells (4.8-9.6V, but is limited to 7 cells on DC)
Battery Capacity Range: 600-6000mAh
Charge Current: 1, 2, or 4A linear (2A limit on AC)  
          Fast Charge Safety Timer: 90 minute
          Controls: auto-start, switchable current selector
          LED Indicator: Red
          Output Connections: Built-in lead with Tamiya connector
                              Built-in jack for radio batteries
          Protective Devices: Solid-state reverse polarity and current overload
          Case size: 3.5 x 4.1 x 1.1" (90 x 104 x 29mm)
          Weight: 9.17 oz.(260g)