These are AA rechargeable Batteries. The batteries are NiMH, which do not have memory issues when charging. They are also 2600mAHr, which is much more powerful than most rechargeable batteries you can get in stores.
The picture of the battery may not be represenative of what we have in stock at any given time. We use different suppliers, etc so the batteries may have different covers, but they are all high quality AA NiMH batteries.
This battery holder features two 6", 26-gauge leads that have 5 mm of insulation stripped off of the ends.
This small synchronous switching step-down (or buck) regulator takes an input voltage of up to 38 V and efficiently reduces it to 5 V. The board measures only 0.7″ × 0.8″, but it allows a typical continuous output current of up to 5 A.
This robot uses custom length sides and 10 inch tires with IG52 285 RPM motors. We have included everything to make it ready to run including batteries, chargers, and a controller.