This is a 6 cell (7.2VDC) 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 1x6 array of AA batteries interconnected via soldered strips and covered with a PVC wrapping. Two wire leads extend out of the pack.
As an options below you can select to get 15A 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.
2WD self balancing robot! This kit is a perfect plataform for learning Arduino, PID control, serial communications(Serial, I2C, SPI), PWM signals, IMU filtering, etc.
100 pack of black UV resistant nylon with flexible tape section, pull tight and does not come undone. Length 11 inches.