This is a Venom Racing 7.2 Volt 1800mAh 6-Cell NiCD Rechargeable Battery Pack with the Traxxas High-Current Connector.  These packs offer much longer run-times than smaller packs.  It will give you about 17-25% more run-time than a 1500mAh pack.  They are very affordable and are great sport packs.  This is a very economical battery and they are a great value!  These are great for the Traxxas E-Maxx, E-Revo, Rustler, Stampede, and many other electric cars, trucks, and boats using the Traxxas High-Current connectors.

Features:
Big capacity for sport racers delivers 17%25 longer run-times than 1500mAh packs
Can be run and recharged several times a day which is a real convenience for racers
Welded tabs
Multi-strand 14 AWG leads

Specifications:
Number of Cells: 6
Cell Capacity: 1800mAh
Total Assembled Voltage: 7.2V
Connector Type: Traxxas high current female with 4.9" (125mm) 14 AWG strand wire
Charge Rate: 4-6.5A. Timed or peak charge
Discharge Rate: 5-15A. Minimum discharge voltage: 6V
Suggested Usage: Sport racing
Length: 5.2" (133mm)
Width: 1.7" (44mm)
Height: 0.90" (23mm)
Weight: 9.7oz (275g)