since the unit arrived, it runs in continuous operation. The first batteries in stock that require regeneration or have a defect are found quickly. The device can be operated very easily. With just a quick look at the operating instructions and recommendations in the reviews. With the refresh function I could regenerate Energizer batteries with 25% insufficient capacity again to approximately 95% of the manufacturer's specification. 500mA charging current fully meet. The batteries heat up even with this value already quite well. Thus, the decision against the BC1000 and the MEC-Energietechnik was AV4m properly. The BC700 is a sufficient charge current and sufficient functionality for my use ready. The other two devices in my short list does not justify their additional options the additional price for me. From the money saved to buy better yet a set Eneloops. Full buy recommendation