This is a 20 cell (24VDC) 2200mAhr Rechargeable NiMH battery pack. The batteries are NiMH so they do not have the memory issues common with NiCad battery packs. The batteries are arranged in a 2x10 array of AA batteries interconnected via soldered strips and covered with a PVC wrapping (color may be different than the picture). Two wire leads extend out of the pack.
As an option you can select to get connectors for the batteries. The connectors are sometimes referred to as Anderson Powerpole connectors. They can be soldered/crimped onto the wire ends and offer a great way of disconnecting the batteries for charging, etc. The 15A connectors and 30A connectors are the same and can plug into one another, they only are for different gage wires.
22.2 V 10 Ah pack is made by 6 pcs High power Polymer Li-Ion cell of 3.7V 10000mAh batteries with 50Amp drain capability
These are 6" inch diameter Mecanum wheels with custom shafts, lock collars, and bearings.
This is a Pre Built direct drive 4WD base Programmable robot kit that uses Nexus mecanum wheels and hubs. Its a Arduino robot platform for indoor robotics. It can vector in any direction. Customized version of TP-142-004.