Go to advanced search

by coulomb
Thu Sep 10, 2020 4:28 am
Forum: Batteries and Battery Management
Topic: Battery current sensor
Replies: 14
Views: 1875

Re: Battery current sensor

i'll have to look for an LEM datasheet. Here is one: https://www.electronicsdatasheets.com/download/1589.pdf?format=pdf So you are looking for the connector and mate for the oval-shaped housing to make a break-out box for the wiring? I would have said more rounded rectangle, but now that I look aga...
by coulomb
Thu Sep 10, 2020 4:13 am
Forum: Batteries and Battery Management
Topic: Battery leakage detector (presumed)
Replies: 6
Views: 919

Battery leakage detector (presumed)

[ Edit: I neglected to mention that this detector resides inside the iMiEV battery enclosure. ] I've seen this described as a "battery detector"; I'd say it's actually the battery leakage / insulation detector. Note the long plastic legs separating this device from the metalwork. (The moun...
by coulomb
Wed Sep 09, 2020 11:18 pm
Forum: Batteries and Battery Management
Topic: Battery current sensor
Replies: 14
Views: 1875

Re: Battery current sensor

The current sensor itself: https://i.imgur.com/HVKEb7V.jpg https://i.imgur.com/rTWx1uo.jpg The blue and green paint was just something the owner used to keep track of the connectors and where they go. Edit: the large number 710... seems to be the world's most high resolution date code (with the lead...
by coulomb
Wed Sep 09, 2020 6:52 pm
Forum: Batteries and Battery Management
Topic: 5 dummy connectors
Replies: 3
Views: 598

Re: 5 dummy connectors

Photos are finally up in the above post in case anyone is interested.
by coulomb
Wed Sep 09, 2020 5:42 pm
Forum: Batteries and Battery Management
Topic: 5 dummy connectors
Replies: 3
Views: 598

Re: 5 dummy connectors

For example all the red wires collected into one; the gray and black wires combined into another; Ah! The red wires were pointed out to me yesterday, but it didn't register. I'd say that these are essentially shorting bars. These would be the star points for all the commoned wires, such as +12 V (g...
by coulomb
Tue Sep 08, 2020 11:30 pm
Forum: Batteries and Battery Management
Topic: Battery current sensor
Replies: 14
Views: 1875

Battery current sensor

I'm considering modifying the main battery current sensor output to allow use of higher capacity cells in the imiEV battery case. The current sensor seems to come out on 10-pin connector C26. Anyone know where this connector (male and female) can be purchased? Does anyone know the consequences of mo...
by coulomb
Tue Sep 08, 2020 11:25 pm
Forum: Batteries and Battery Management
Topic: 5 dummy connectors
Replies: 3
Views: 598

5 dummy connectors

I'm wondering what all the unused connectors inside the battery box are about. I count 5 connectors with about 20 pins, and they seem to be plugged into what seem like dummy sockets. Is this loom designed for another product or something? One without the CMUs? Or is it for factory diagnostics, when ...
by coulomb
Sun Jun 21, 2020 4:55 pm
Forum: Batteries and Battery Management
Topic: 12V battery cumulative drain higher then overall charging.
Replies: 19
Views: 4918

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

With the ~13mA drain, does it stay that high for ever? I mention this because I've been checking the current drain on my 2012 Leaf; it has terrible problems with auxiliary battery drain. The Leafs draw hundreds of milliamps for ten minutes (with a step down or two in that time, starting at over two ...
by coulomb
Sun Jun 21, 2020 4:29 pm
Forum: Batteries and Battery Management
Topic: Troubleshooting and repair for On-board Charger (OBC)
Replies: 620
Views: 239309

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

All that soot and molten metal [pic# 21]looks to me that the OBC was operating with a split snubber [pic# 11] that was arcing and eroding over some length of time. Look at the size of that gap! That looks like arc erosion has just eaten out the guts and spread it inside the box. I agree, and was th...
by coulomb
Sat Jun 20, 2020 5:06 am
Forum: Batteries and Battery Management
Topic: Troubleshooting and repair for On-board Charger (OBC)
Replies: 620
Views: 239309

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

I guess there is a lesson to be learned from this repair. If you choose to replace the capacitors without removing the lower board from the Waffle Plate™, you risk leaving some soot on the top of the Waffle Plate™. I'd say the devices themselves would be fine; that potting mix and the epoxy of the d...

Go to advanced search