MM arming on 5s? - RC-Monster Forums

jhautz · 01:08 PM

I have one older MM that is slightly sensitive on the overvolt on 5s. It works perfectly if I change my charger setting to charge to 4.15v per cell (20.75v for the pack) rather than 4.2v per cell. If I charge the pack all the way to 21V it doesnt want to start. I need to drain 100mah off the top of the pack and then it works perfectly. The other MMs I have arent bothered by 5s and work perfectly. These are all the older style though.

Try seeing if a not quite completely peaked 5s pack will let tthe MM start up.

Quote:

Originally Posted by Finnster

Uh-oh, did this get changed in the new firmware? I have an older MM that runs 5S well. I gen don't use it for that, but its nice to have. I updated the firmware, so I wonder what it will do now...

I've had no issues on mine after the upgrade. At least no issues that werent there before the upgrade.

GriffinRU · **I will check again MM... -** 02.08.2008, 12:00 PM

But I have a solution which will solve all problems including LiPo support (cutoff) for 5S and 6S.
I won't recomend running above 6S or 26V.
Picture located here.

dadnjesse · 02.08.2008, 12:22 PM

Quote:

Originally Posted by GriffinRU

But I have a solution which will solve all problems including LiPo support (cutoff) for 5S and 6S.
I won't recomend running above 6S or 26V.
Picture located here.

Do you have the specs on that cap that you soldered on!

GriffinRU · 02.08.2008, 12:33 PM

Quote:

Originally Posted by dadnjesse

Do you have the specs on that cap that you soldered on!

1800uF 35V
16x25mm
3820mA/0.014Ohms at 105C 100kHz

GriffinRU · **DON't TRY this setup!!! -** 02.08.2008, 01:24 PM

Quote:

Originally Posted by GriffinRU

But I have a solution which will solve all problems including LiPo support (cutoff) for 5S and 6S.
I won't recomend running above 6S or 26V.
Picture located here.

DON't TRY this setup!!!

I encounted serious problems with this setup, not quite sure why. But I do need to investigate, it cogs like crazy at mid to high RPM...

Sorry, update will follow.

dadnjesse · 02.08.2008, 02:40 PM

Quote:

Originally Posted by GriffinRU

DON't TRY this setup!!!

I encounted serious problems with this setup, not quite sure why. But I do need to investigate, it cogs like crazy at mid to high RPM...

Sorry, update will follow.

Thanks keep us informed