Interesting Conversation with MAHA Support

[Turak]

I just got off the phone a few minutes ago with them.....

According to the gentlemen that I was speaking with, there is NO DIFFERENCE between the following models;

0G0B01
0G0C01
0G0D01
0G0E01

It was explained to me that the first 2 digits are the firmware revision....would seem to mean that ALL the models that begin with 0G are the same.

Makes me wonder though, he didn't seem to know what the last 4 were. Possibly production runs????

 

[Turak]

Does anyone here have two 9000's at 2 different, above listed, firmware levels, possibly confirm that they see/have experienced no differences?

Does anyone here disagree with what I was told above? If so, can you explain the differences you have encountered.

Just curious.

 

[Bones]

Does anyone here disagree with what I was told above? If so, can you explain the differences you have encountered.

According to the posts hyperlinked below, the repeating digits bug reported in the first release was still apparent in release OGOD01 and not in release OGOE01.

Intial report of bug by TorchBoy:
http://www.candlepowerforums.com ... p=1891712

Subsequent report of bug by LuxLuther:
http://www.candlepowerforums.com ... p=1945759

Another detailed report of bug by Gazoo:
http://www.candlepowerforums.com ... p=2096164

Report that release OGOD01 has bug by cam94z28:
http://www.candlepowerforums.com ... p=2094550

Report that release OGOE01 does not by lampthis:
http://www.candlepowerforums.com ... p=2095311

Confirmation that lampthis has release OGOE01:
http://www.candlepowerforums.com ... p=2090809

Report that there is now a release OGOE02 by jsphand:
http://www.candlepowerforums.com ... p=2149609

 

[Turak]

Bones, thank you for the reply....

But, all the links you show do not confirm anything about the E version not having the cycle bug.

The only link that shows the E version, was a mistake in that the cycle was only ran 1 time.

The cycle bug ONLY show itself if you run the cycle for 2 times or more and only after it has fully completed the 2nd cycle.

It is possible that I am wrong here, since I do not have an E revision.

Can ANYONE else with a revision E model that understands how to reproduce the cycle bug confirm that it is indeed fixed in the revision E model?

I appreciate the responses.....trying to confirm whether the support person I spoke to REALLY knew what he was talking about or was just blowing smoke...

I use cycle quite a bit and would like to see that annoying bug gone. Didn't want to waste time getting MAHA to swap mine if the bug still exists.

Thanks again for any information anyone can supply.

 

[Bones]

Bones, thank you for the reply....

But, all the links you show below do not confirm anything about the E version not having the cycle bug.

The only link below that shows the E version, was a mistake in that the cycle was only ran 1 time.

The cycle bug ONLY show itself if you run the cycle for 2 times or more and only after it has fully completed the 2nd cycle.

Thanks for the clarification Turak, I was actually thinking of ordering another C9000 believing that the last known bug was finally fixed.

I will now await more details.

 

[tino_ale]

If I understand correctly, the available capacity displays a wrong number once it has passed the "rest" pediod, when cycling mode than one cycle in tray 1, it shows proper number during rest period, but then the two first numbers are reapeated and therefore you loose the two last digits. Do I get it right?

I have just received two C9000 , but so far I have only been using them in R&A mode, 1A/1A, they both work great so far. These chargers are bigger than I imagined, but I'm please with built/assembly quality, the screen is great and I like the persistent white backlight. The whining sound both my chargers make when charging is a bit annoying since I can't use them in a room where I stay to relax or sleep.

I have OGOE01 versions, if I have time I'll try to make that test, tomorow or on monday.

 

[Turak]

Probably the easiest way to test it would be;

Take the lowest mAh rates AA's you have say 1800-2100.

Put them in the charger. Use slots 1 and 4 (just to space them apart since we are going to use some high charge/disharge rates and they ARE going to get a bit warm).

Set the charger to do 2 cycles.

Set the rates at something like 2A charge/1A discharge and let it run till it finishes. Normally I do not recommend the higher rates as it is not good overall for the batteries, but it will speed up the test.

Then, after its finished. Move the little cursor over to battery one, and press the up arrow.

Say the real capacity was something like 2159. The display would read 2121 for the first cycle. The second cycle would display correctly.

But you HAVE to let it run for at least 2 cycles. You really only need a single battery in the #1 slot, but if you put a batt in 1 and 4, you can see the bad display #1 versus the good display #4.

 

[Burgess]

_

 

[TPA]

My 2-week old charger shows the display glitch (0G0D01). Noticed it today for the first time. Slot 1, after a few cycles had gone by. I have a missing middle digit on the first cycle. Not a huge problem, but it does surprise me.

 

[NA8]

What format is the firmware in ? Rom on a micro controller or ??

 

[TorchBoy]

A couple of posts later lampthis did say "It was during the 2nd charge cycle when I took that pic. in post #16." - which tends to indicate it was done correctly. But I'd still like to see someone else fail to reproduce the error.