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by DBMandrake
Tue Jun 30, 2020 12:08 pm
Forum: Batteries and Battery Management
Topic: not charging my iON, cell or CMU or BMU problems
Replies: 86
Views: 22710

Re: not charging my iON, cell or CMU or BMU problems

Thanks Simon! Very good to know he has solved with a new LTC chip. As long as it's done very carefully by someone with the right solder rework equipment and skills, it does seem that the LTC chip replacement is the most likely repair method to be successful, (side stepping all possible numbering an...
by DBMandrake
Mon Jun 29, 2020 12:36 pm
Forum: Batteries and Battery Management
Topic: not charging my iON, cell or CMU or BMU problems
Replies: 86
Views: 22710

Re: not charging my iON, cell or CMU or BMU problems

Martin has probably forgotten to post back here but on SpeakEV he has reported the problem as solved. There was an interesting wrinkle to the issue though - his car is so old that it has pre-production or very very early production CMU boards which are coloured Red instead of the normal Green and ha...
by DBMandrake
Mon Jun 29, 2020 12:29 pm
Forum: Batteries and Battery Management
Topic: 12V battery cumulative drain higher then overall charging.
Replies: 18
Views: 640

Re: 12V battery cumulative drain higher then overall charging.

Guys, You're all barking up the wrong tree here looking for a problem that doesn't exist. A parasitic drain when the car is off and locked of 13mA is perfectly normal and in fact very good by the standard of many cars! The parasitic drain of my older ICE car (which has an alarm and of course central...
by DBMandrake
Mon Jun 01, 2020 10:42 am
Forum: General Technical Discussions
Topic: MCU 20A 450VDC fuse investigation
Replies: 41
Views: 18360

Re: MCU 20A 450VDC fuse investigation

That was an issue i found-- the minimum order quantity from PEC. i needed something quick to get back on the road so i ordered what was available from Mouser, which was the 30A since they were out of stock in the 20A version and it had a 12-week lead time. With all this talk of finding alternative ...
by DBMandrake
Mon Jun 01, 2020 9:50 am
Forum: General / Main Owners Forum
Topic: hobdrive - and i-MIEV ion zero, show electronic control units, reset errors
Replies: 137
Views: 47702

Re: hobdrive - and i-MIEV ion zero, show electronic control units, reset errors

Is there any particular reason why Hobdrive can't work with Bluetooth 3 adaptors on iOS when other apps can ? Especially when the same adaptor works with Hobdrive under Android.
by DBMandrake
Mon Jun 01, 2020 5:20 am
Forum: General / Main Owners Forum
Topic: hobdrive - and i-MIEV ion zero, show electronic control units, reset errors
Replies: 137
Views: 47702

Re: hobdrive - and i-MIEV ion zero, show electronic control units, reset errors

I don’t think the MX+ is BLE only “standard” Bluetooth, so I guess it won’t work then.
by DBMandrake
Mon Jun 01, 2020 3:43 am
Forum: General / Main Owners Forum
Topic: hobdrive - and i-MIEV ion zero, show electronic control units, reset errors
Replies: 137
Views: 47702

Re: hobdrive - and i-MIEV ion zero, show electronic control units, reset errors

A quick question for Serhge - I already own the Android version of Hobdrive and use it both with an OBDLink LX and OBDLink MX+. However the Android device is a tablet and is often not in the car and I would sometimes like to take a quick reading (such as traction battery cell temperature) using my i...
by DBMandrake
Sun May 24, 2020 12:59 am
Forum: Batteries and Battery Management
Topic: not charging my iON, cell or CMU or BMU problems
Replies: 86
Views: 22710

Re: not charging my iON, cell or CMU or BMU problems

I appear today to have confirmed that the MUT3 can renumber CMU BMS PCBs I actually thought that they would renumber themselves, using a daisy chained pair of wires between each CMU. Are you sure you needed the MUT3 for this? Perhaps the MUT3 is needed to "kick things off", and the CMUs t...
by DBMandrake
Sat Mar 07, 2020 1:26 pm
Forum: General Technical Discussions
Topic: MCU 20A 450VDC fuse investigation
Replies: 41
Views: 18360

Re: MCU 20A 450VDC fuse investigation

2.4kV ?

So the original 2kV caps would probably suffer a failure while my 6kV caps would survive in this scenario ?
by DBMandrake
Sat Mar 07, 2020 1:48 am
Forum: Batteries and Battery Management
Topic: Troubleshooting and repair for On-board Charger (OBC), DC-DC Converter
Replies: 514
Views: 158082

Re: Troubleshooting and repair for On-board Charger (OBC), DC-DC Converter

Here is a simplified functional schematic of the OBC, MCU and Pack, showing details of the HV DC Output section with the snubber caps and MCU fuse that seems to blow. The snubber caps in my OBC were definitely 2kV not 3kV as shown in your diagram - one was undamaged and easy to read. I fitted 6kV r...

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