Looks a lot like an odyssey pc2150...batcap model 4000 Model 4000
Less than 800 cubic inches
Dimensions: H 8 5/8" X W 6 3/4" X L13"
Weight: 75.5 lbs.
Two years in the making, the Xstatic Corporation has tried to achieve the energy equivalent of TWO Model 2000s in ONE case!
Its here now in the Model 4000, a 12volt, 100ah battery with an internal resistance of 2 m ohm and over 2,000 amps of useable energy.