Our decision criteria for the device:
+ Many different battery and battery types including button cells can be tested.
+ Display of voltage.
+ Capacity is given in%.
+ Large display.
+ Probe with long cable.
+ Holder for measuring tip on the device.
+ Solid plastic housing.
+ Self-test button on the device's own battery or battery for the capacity test.
+ Very solid construction.
+ Quality product.
+ Measuring stations well labeled.
+ Documentation in words and pictures in different languages.
- Capacity is not additionally specified in mAh.
- For the operation of the device itself Ansmann supplies with a battery instead of a battery. We have disposed of the battery and done a battery inside. Goes well.
- The probe tip must be pressed relatively firmly on the battery to be tested, else there are different or incorrect measurement results.
Note on application:
A 9V block (battery or battery) for self-supply of the device must always be inserted and charged, otherwise it could lead to incorrect measurements. Measurement: The measured battery or the battery must be firmly pressed against the measuring rod of the associated measuring station, then also press the probe tip firmly on the battery. The measurement result is displayed after a few seconds. It should be noted, always to choose the right measuring station, otherwise it gives false results.
If you want to check the condition of a battery in general, so you can do the following:
1) Charge the battery.
2) Check battery. He can not after repeated charging and discharging at 100% capacity charge, it should be consumed or the charger can not charge the high capacity of the new battery. Battery charger to renew or maximum load capacity in the column capacity mAh (standing on the charger) check.
3) The battery is after charging and checking 100% capacity. Then it should be checked after about 1 day again. The capacity drops too much from so z. B. to 70-80%, so the battery has a too high self-discharge. If free capacity after one day even further, so one can assume that he is worn out and needs to be replaced. However, he maintains the capacity over several weeks and months to the 100% or it has only minor capacity loss on, everything is ok.
4) Displays the battery after charging and testing within a short time a strong decline in different capacitance values, and is based on the capacity for a day under 60%, so it is strongly worn out and must be replaced. Strong fluctuations are always an indication of defective batteries. Such batteries are either already old and were repeatedly discharged deeply. One can try by repeatedly discharging and charging again to regenerate, but when a battery has been damaged by strong, then it is usually also over.
Improvements to the machine: Additional display of mAh in capacity. Is not so annoying but useful for professionals.
Overall, a useful, high-quality, robust and versatile test instrument. A clear buy.
