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
22.2 V 3Ahr pack is made by 6 pcs High power Polymer Li-Ion cell of 3.7V 3000mAh batteries with 30Amp drain capability
This is a SDR 4-wheel drive remote control robot kit. It uses four powerful wheelchair motors and 35AH batteries.
This is the chain and sprocket kit for the IG52-DB4 robot platform. It includes the sprockets, 6 feet of #25 chain, and 4 connecting links.