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by kiev
Tue Apr 23, 2019 6:58 pm
Forum: Batteries and Battery Management
Topic: not charging my iON, cell or CMU or BMU problems
Replies: 37
Views: 6614

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

The LTC6802 cell monitoring chip does not have direct access to the CAN buss and does not receive or store the CMU number. There is a microcontroller chip that communicates between the LTC chip and the BMU. If it is defective in reading a cell voltage, then it could be the source of an error or issu...
by kiev
Sat Apr 20, 2019 8:02 pm
Forum: Batteries and Battery Management
Topic: not charging my iON, cell or CMU or BMU problems
Replies: 37
Views: 6614

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

The is a reference to cell numbering in the description of the BMU pins 48 and 49: 1 Auxiliary battery power source 2 EV-ECU control power source 3 BMU earth 6 CAN interface (high) 7 CAN interface (low) 8 K-LINE 12 Main battery cooling fan relay 13 Main battery cooling fan PWM signal 21 Input signal...
by kiev
Tue Apr 16, 2019 4:44 am
Forum: Batteries and Battery Management
Topic: 12V battery BCI Size?
Replies: 20
Views: 2128

Re: 12V battery BCI Size?

Lead acid sucks as a storage battery, but it's hard to beat the safe, reliable, low maintenance, and dependable nature of a lead acid starter battery. Tesla uses a regular lead starter battery just like everyone else. To save weight and extend range, Boeing tried to use lithium as starter batteries ...
by kiev
Sat Apr 13, 2019 7:19 am
Forum: Batteries and Battery Management
Topic: 12V battery BCI Size?
Replies: 20
Views: 2128

What is to be gained? What is the Benefit?

But why-- Because it weighs less? That is too little useless a benefit for the risk of failure. The price for this little UPS battery is the same as the full-sized lead acid in the miev. Plus it is way undersized for the current loads of a running car with headlights ON. The chemistry requires a dif...
by kiev
Thu Apr 11, 2019 6:27 pm
Forum: General / Main Owners Forum
Topic: new program for monitoring charge readings
Replies: 70
Views: 7969

Re: new program for monitoring charge readings

i think what is puzzling to everyone is why do the BMU and CMU voltages not match up exactly--there is about 0.100 volts difference between the two for the same cells. Which value is correct, and why is there an indicated difference in the readings? This is a problem that needs to be answered before...
by kiev
Tue Apr 09, 2019 6:21 am
Forum: General Technical Discussions
Topic: EVSE blink 2 led
Replies: 2
Views: 146

Re: EVSE blink 2 led

Here is a link to a troubleshooting page for the OBC/EV,SE http://mmc-manuals.ru/manuals/i-miev/online/Service_Manual/2012/54/html/M154950080003200ENG.HTM Basically they indicate to check the EV,SE device/cable, or connect MUT to read the OBC codes and run thru the steps for the code. Blinking Fault...
by kiev
Tue Apr 02, 2019 8:20 am
Forum: Modifications & Accessories
Topic: Project to add temperature reading to odometer button
Replies: 0
Views: 73

Project to add temperature reading to odometer button

Maybe someone is interested to explore their car and help out? i got a PM from a fellow in EU that wants to redo the 93c66 eeprom in the speedometer to add the outside temperature to the push button options of the odometer gauge. It seems that the EU cars don't have that feature-- i don't know? This...
by kiev
Thu Mar 21, 2019 4:50 pm
Forum: Private For Sale, Want To Buy
Topic: for sale 2012 Miev Chicago area
Replies: 12
Views: 1142

Re: for sale 2012 Miev Chicago area

This looks like a trick question, and i'm not so good at math so i should just give up, but i'll guess,

2
0
1 in 2012
by kiev
Thu Mar 14, 2019 4:47 am
Forum: General / Main Owners Forum
Topic: Turtle at Half Charge Under Load?!?!?!
Replies: 9
Views: 432

Re: Turtle at Half Charge Under Load?!?!?!

Graveaxis wrote:The car has about 54,000 miles. It still got the original battery.


i would bet that your problems will go away when you replace the OEM aux battery. Put the money for the obdii tool toward a new battery. i hardly ever use my scantool, but i use that battery every day...
by kiev
Wed Mar 13, 2019 6:20 pm
Forum: General / Main Owners Forum
Topic: Turtle at Half Charge Under Load?!?!?!
Replies: 9
Views: 432

Re: Turtle at Half Charge Under Load?!?!?!

What is the age and condition of the 12V aux battery--is it the original OEM or has it been changed, etc.? We have a separate thread devoted to troubleshooting the OBC/DCDC Converter with lots of detailed information in post #2 about testing the 12V aux battery. i would have expected to hear that th...

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