Ansmann Mono D HR20 1.2V NiMH Rechargeable Battery for Flash Units and Digital Cameras, 10000mAh Capacity, 2-Pack

Professionals with very high usage like to use rechargeable batteries with highest capacities such as the ANSMANN 2850mAh Mignon AA. The higher self-discharge is not important for users that recharge daily or many times a week because of their intensive use.