Unfortunately turned out after the first capacitance measurements of some old battery Etched me an unpleasant problem: batteries that were already weak but still usable though, had at one time a complete failure. Could I advance for weeks used in devices that consume little power, they lost at once in a few Studnden the voltage and nothing was more. Quite obviously makes the batch manager anything different from my other chargers.
If you know what you have to look into these cases, the troubleshooting is not difficult. There are two things that destroy a battery: 1. to deep discharge and 2nd hot. The batch manager creates both.
Previously it was thought to train a battery by beautiful emptied him deeply. Today it is clear that a battery should never be discharged too deeply, because that harms him immediately permanently. As magical limit applies a voltages of 1 volt: Once among discharged, and the battery is damaged. It's like a clock spring: Once overexcited, and it is not as good. New batteries you do not notice the same old are then often immediately unusable.
Now what makes the Charge Manager? It discharges to a voltage of 0.9 volts. In my case he misses besides they have to 0.07 volts, so that he discharges the battery to 0.83 volts. And over the battery. However, the batch manager has even more up its sleeve. Its minimum charge current is 500 mA (even with AAA cells). He nicely heats the low battery despite the allegedly existing temperature control and high loads while playing more than 150% of rated capacity "into".
Leaving the battery now a couple of hours in the device, then there is the next surprise. When I went in the morning in the room where stood the charger, I remarked a little dicey smell. When charging is complete, the trickle charge had turned on ("Tickle") and apparently works without any protective device. As a result, the affected batteries were so hot that you could barely touch.
The batch manager diagnoses the battery expiration incidentally itself also entirely correct: Determined, he initially have a capacity of 1700 mAh, it was during the second measurement a few hundred mAh, and consistent with multiple batteries.
My recommendation to the manufacturer:
Spendieren a firmware update, which sets the shutdown voltage to 1 Volt, prefer a little higher.
Make sure that the voltage measurement of the device is correct.
Insert a charging current of 200 mA.
Turn off the Tickle function.
My recommendation for buyers:
Stay away from this unit when you are fond of your batteries. I have instead bought a AV4m which can indeed serve a lot worse, but at least does what he should. It comes at a hobbyist named Friedrich Mössinger in a "Tuining-" version (which is then AV4m +, ie with a plus sign at the back), with a slightly more powerful software is up-played and the voltage measurement has been accurately calibrated. This device was only 10 euros more expensive, but switched at exactly 1.00 volts (which agrees exactly with my voltmeter) and deals with the batteries as raw eggs. Old batteries that I have trained with it, work fine again - unlike the destroyed during the batch manager.
Small supplement: In the answers to this review some writing that they do not have the problems described here. Possibly harms the very short time the voltage falls below 1 volt at today's Eneloop batteries not, perhaps acting on some of the measurement errors also just in the other direction. In addition, the overheating in the Tickle-operation does not seem to occur with other and my device was perhaps simply defective. That's why I raised my rating of 2 to 3 stars.
