I contacted Assi Rutzki from Enerdan (Germany) 6 months ago regarding a problem I had with the MH-C9000 charger I bought from them. He told me to send it over, he will check it and eventually send it to Maha/Powerex for repair. Since then, it is impossible to reach him. He won’t reply to my repeated phone calls and emails. I am pissed off by this guy, I should have contacted Maha.
Should I consider my charger to be lost? What are my options?
You should try to post your question on the other English forum CPF. Tons of C9000 users there!
Thanks tempo, I will.
too bad you didnt call maha.
i bought some of the first ones released that had bugs and one of the replacements died.
they sent a replacement with a label to return the duds.
could not have been easier to deal with.
unpack replacements and repack the duds.seal and slap the tag on.
Can someone who owns the device watch the below video and tell me if the charger works properly?
It cycles like that indefinitely, always on 0 minutes with the same MAH. But after posting on their Facebook page, Enerdan replied, telling me that they did not find any problem with the charger. Please let me know asap. Thanks in advance.
After there “DONE” label, mine cycles with same numbers too, I think so must be. If there some other label, than “DONE”, then numbers must change.
I’ll check mine today and post a picture.
Matik, these batteries were empty when I put them in the charger. But supposing I made a mistake and tried to charge full batteries (hence the “0” minute charge), shouldn’t the mAh be more than 3 or 4 as shown on the screen?
Mine shows the minutes when done. I’ve owned this charger for 5 years. BTW, these Eneloops were close to fully charged when inserted into the charger.
Sorry, so I thinked, that I dont get a point.
Only guestion leaves, that if they are empty, why they show 1.54V? Can you check with some multimeter them? I get after charging my eneloops ~1.46V
exceeded 1.47 terminated before even 1mah charged,and the trickle took them higher?
if they were discharged and it does this they should have said high.
meaning junk cells.
you video would not load.post to youtube instead.
those oddball sites often dont work.
Thanks atbglenn for recording and posting the video. It helps comparing the results with mine. I should mention that my batteries were AAAs. I am pretty sure they were empty at the time I load them into the C9000. Realizing they are not charging at all, I used a generic charger to charge them. I am still unable to determine whether the charger is malfunctioning or not. I guess I will ask Enerdan to send it back to me for further testing.
Tapis, glad I could help. Have you tried other cells just to be sure?
Unfortunately, I don’t have the charger with me. I sent it to Enerdan for repairs. I will tell them to send it back to me, so I could do more testing. Frankly, I found its behaviour quite suspicious, but I’m not an expert in the area, that’s why I posted here to understand if it’s possible for the charger to indicate “done”, “0 minutes” and 4 mAh. The batteries can’t be damaged, I only have four of them, charge them regularly with a generic charger for using in my daughter’s flashlights.
That sucks. I would say with confidence your charger is faulty. BTW, I tried AAA’s as well. I still got similar results that I got with AA’s.
Remember the amount of energy put into the battery does not equal its capacity, that can only be determined by a discharge with appropriate parameters.
the batteries are still the top suspect.
just because they “work” in a cheap flashlight and can be charged with a dumb charger doesnt mean they are any good.
those worn out cells are exactly what causes the behavior you describe.
if you have an esr tester you may find they are garbage.
had some from motorola 2way radios that would charge and receive ok but radio would reboot if you transmitted.
those had ir of 1.5 ohms!
way beyond shot.
He has not provided enough information really.
Sounds to me like he over discharged the batteries so then the charger would not charge them. Then charges them in a charger that does not care. Then puts the full batteries into the C9000 and it actually does the correct thing and after a very short time determines the batteries are fully charged.
All the above is possible with good batteries. Since they are not experienced in the use of the C9000 it’s not possible to do any trouble shooting of this particular use case. That will have to wait until he gets the charger back and has a good read through the manual. A capacity test will quickly tell if the cells are healthy.
Now that I see video it looks more like they were full and the charger handled them as it should.
It then trickled to a higher voltage.
Those being eneloops its less likely to be junk cells.
Waiting for it to return to get the conclusion….
What would be a good quality esr tester to buy? I only found around the house a Fluke 17B multimeter my in-law bought many years ago on ebay and never used, and I doubt it can be useful for the purpose of testing batteries.