I bought now more 8 batteries to my already 4 batteries of the same type of Ansmann and am very satisfied. For me, the batteries in constant use, digicam, Toys, Rc-Heli are etc .. Even after a week of use, I have now performed a complete test discharge. All batteries have a capacity in the range of 2800 to 2900mAh. I have the battery always with 2Ampere quickly loaded with the Ansmann Energy XC 3000 but I want to point out that the best batteries and best charger does not help if you do not carefully handle the batteries. Do not store battery pack long unused. If they are not used even for a while, about half charge up completely, store in a cool, and make 1 times per month * empty and recharge. Ni-MH batteries have no memory effect, no more than a battery inertia effect. Are so similar, but it can unload a few charging cycles and formatted Rechargeable batteries never overloaded (very hot) -> can be destroyed * - Making> Batteries empty means to the discharge voltage about 0.9-1.0 V Rechargeable batteries never share Unload> once by 10% over-discharging reduces the number of cycles from 1000 to ca 100. The battery only takes a moment broken by! Cameras turn off. Then recharge the batteries again. For devices without shutdown ("low bat") Make yourself out. Flashlight is rapidly eg dark. Rausholen battery immediately, no further discharged! Do not -Turn consecutively too many batteries. Take the case of a serial connection ONLY equally good batteries. Has a battery less capacity, it will be empty first, the voltage will continue to fall and he is deep discharging. This he loses a battery to capacity. In the next discharge he is then more quickly empty and will be further deep discharge. From more than 6 batteries in series you most from even when shutdown and the individual cells to charge state. -For Smoke detector or multimeter or devices consume very little power, but still in use, I recommend LSD batteries (low self discharge).
If you follow these rules, you will have after many charging cycles and long use much of these batteries!