Vicky,
First, the Crio connects to the 24 volt connector on the Power Distribution Panel. This is a special brown, four pin connector. The Crio does not connect to a Wago connector nor does the battery. The Robot Power Distribution Diagram found here....
http://www.usfirst.org/uploadedFiles...ution_RevA.pdf
will show you all you need to know for correct wiring. Please note that the battery connections pass through the 120 amp circuit breaker and then to the terminals on the PD. Please be careful, these are
metric studs and not 1/4-20. Please use a metric nut driver to tighten. This part is not repairable.
The Wago connectors are actually challenging to use for the first time, but once you have the sequence down you will laugh at how easy it becomes. The angle you insert the screw driver is critical. Any flat blade screwdriver that fits should work. The "green tweaker" from Xcelite works well and can be purchased anywhere you find Xcelite tools including Digikey.