Teardown & Testing of RED FUEL by SCHUMACHER SL161 Lithium Jump pack

I got a couple of RED FUEL Lithium car jump-start packs at WalMart for $15 on sale...they were by Schumacher (which I've had good experiences with their 120V powered car battery charger/booster units) and at that price too hard to pass up.

The 12V "engine start" connector is a "EC5 Male" and the "jumper clamps" have a EC5 Female plug. 3rd party adapters are available to turn it into a "lighter socket".

Specs from the back of the unit:
Lithium Ploymer 8000mAh | 29.6Wh
Cranking Current: 400A peak, 200A cranking
USB: 5V DC, 2.1A | 5V, 1A Total 3.1A Max

I didn't get to put in the video but I did also do tests on the USB outputs and they performed up to spec (2.2A out the 2A port and 1.3A out the 1A port).

The capacity is where there were issues - all the tests I can perform max out around 2500mAH capacity for the battery. My guess is since it's made of 3 cells they did some "marketing math" and multiplied the capacity by 3 to get 8000 but that isn't how it works when you have batteries in series.

UPDATE:
In connecting a 2.0A constant test load to the USB port it ran for 2 hours 35 minutes and measured a significantly higher apparent capacity of 5100mAh (25.5Wh) from a fully-charged to fully-drained battery