Battery: Where did we go wrong?

[Ari423]

Originally Posted by DonShaw

We have transitioned over to AGM batteries for the safety of being sealed and being designed to be used at other orientations. They are also a bit more environmentally friendly since they have no lead in them.

I was under the impression that (according to 2015 rules) everyone had to use Sealed Lead-Acid batteries to power the robot.

Originally Posted by 2015 Game Manual

R20: The only legal source of electrical energy for the ROBOT during the competition, the ROBOT battery, must be a non-spillable sealed lead acid (SLA) battery with the following specifications:
A. Nominal voltage: 12V
B. Nominal capacity at 20 hour discharge rate: minimum 17Ah, maximum 18.2Ah
C. Shape: Rectangular
D. Nominal Dimensions:7.1 in x 3in. x 6.6 in (+/- .1 in. for each dimension)
E. Nominal weight: 11lbs to 14.5 lbs
F. Terminals: Nut and bolt style

Emphasis mine. Maybe I'm misinterpreting?