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.
After building many custom WiFi HD2 robots, we have combined the most common requests and come up with this standard WiFi HD2 robot.
This robot is a prebuilt 2WD All Terrain Robot (ATR) designed and fabricated in North Carolina USA. This robot supports our IG42 planetary gear motors.