This Hyperion SWIFT CAR Race Hard-Case Pack has dimensions typical of a 6-cell car NiMH pack - so it'll fit virtually any 1:10 to 1:12 Scale car. But inside the protective hard case you'll find a super-high-rate, large capacity 7.4V Lithium Polymer battery pack. This pack uses an "Orion-Standard" Plug system of female 4mm bullets for main leads and a 2mm bullet balance connector (male connectors also included in package).  To charge on Hyperion EOS chargers, you may purchase the harness pictured below, or make up your own harness using the supplied male connectors (2x4mm, 1x2mm connectors included).

Specifications:

Weight - 235g (8.4oz)
Size (L-W-H) - 137 mm x 46 mm x 23 mm  (5.4" x 1.8" x 0.91")