AA Rechargeable NiMH Battery
Standard NiMH 1.2V rechargeable NiMh AA batteries with a capacity of 3,000mAh. Great for all sorts of projects and work quite well with simple solar based systems.
As a reminder rechargeable AA and AAA batteries have a lower voltage compared to regular batteries which have a voltage of 1.5V. If you plan on using several batteries in a series circuit make sure you account for the 0.3V per battery lower voltage.