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by coulomb
Mon Apr 12, 2021 8:09 pm
Forum: Private For Sale, Want To Buy
Topic: Wanted. Battery detector 9499D325
Replies: 4
Views: 652

Re: Wanted. Battery detector 9499D325

In fact ,it looks like it's a different size, and the mounting holes will be different (for other readers, mine is the second photo): https://lh3.googleusercontent.com/pw/ACtC-3dkWn3xb4EOPzLs-jIA2MkvFPKTn79ChvYRbUBe0YU0qEHwX3mp6mRzQItVuJKyubvxsALYUZwm1x0ifDQOxLtsuuq-k1cbCUT_CdE2VtjYxGP97-Rfi35bktw8e...
by coulomb
Mon Apr 12, 2021 7:40 pm
Forum: Private For Sale, Want To Buy
Topic: Wanted. Battery detector 9499D325
Replies: 4
Views: 652

Re: Wanted. Battery detector 9499D325

I have a spare one of these somewhere... I'll do a tidy up and see if it turns up. It turned up today, along with my clamp meter that I've been searching for :roll: The part number is 9499A648. Under that is G8D-803M. So that doesn't sound very promising, sadly. It has a 5-pin connector, and of cou...
by coulomb
Tue Apr 06, 2021 6:11 am
Forum: Batteries and Battery Management
Topic: Replace CMU?
Replies: 6
Views: 467

Re: Replace CMU?

i think there is a forum thread with pictures and schematics of the CMU board, i remember seeing this Yes, one by that helpful Kiev chappie :D http://myimiev.com/forum/viewtopic.php?f=23&t=4302 Edit: only a couple of partial schematics are traced, but one happens to involve the auto-numbering c...
by coulomb
Sun Apr 04, 2021 5:17 pm
Forum: Batteries and Battery Management
Topic: Replace CMU?
Replies: 6
Views: 467

Re: Replace CMU?

kiev wrote:Simon and coulomb know more about the automatic renumbering feature of the BMU.

I only know the details of how it works, at the firmware level, but unfortunately not any practical method to trigger it.
by coulomb
Mon Mar 29, 2021 8:14 pm
Forum: Batteries and Battery Management
Topic: Level One Charger Won't Charge
Replies: 11
Views: 674

Re: Level One Charger Won't Charge

Yes, earth is required for EV charging.
by coulomb
Mon Mar 22, 2021 5:56 pm
Forum: Batteries and Battery Management
Topic: No READY. P1A15 error. Condenser charge timeout.
Replies: 138
Views: 59273

Re: No READY. P1A15 error. Condenser charge timeout.

Duh. The capacitor voltage is obviously declared too low (whether it really is or not), because of the trouble code. So forget what I said about the main contactor not working. A final thought: maybe when that trouble code is asserted, the EV ECU does something to quickly discharge the DC bus: perha...
by coulomb
Mon Mar 22, 2021 5:44 pm
Forum: Batteries and Battery Management
Topic: No READY. P1A15 error. Condenser charge timeout.
Replies: 138
Views: 59273

Re: No READY. P1A15 error. Condenser charge timeout.

Maybe the capacitor has a decreased capacitance and is not 800 microfarad due to aging? If it has, it will only make the pre-charge process faster. It may have excess leakage, but I don't expect that from a film capacitor (if that's what it is). if they are the same, and still the EV-ECU receives o...
by coulomb
Sat Mar 20, 2021 4:36 pm
Forum: General Technical Discussions
Topic: Not able to drive. P1A15 error.
Replies: 32
Views: 4200

Re: Not able to drive. P1A15 error.

Charger set to charging voltage 14.40 V. After battery was fully charged, Voltage 13.15V. Does your charger do a proper absorb charge, or just stop when the battery voltage reaches 14.4 V? It should keep the battery voltage at 14.4 V or so for long enough that the charge current drops to a low valu...
by coulomb
Sat Mar 20, 2021 4:26 pm
Forum: Batteries and Battery Management
Topic: European 3ø Inverter Interface
Replies: 2
Views: 258

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

The charger in the car is a single a phase, 230V, the same as we all possess but I made a mind experiment to power this imiev’s AC cable from 3 phases, 400VAC rectified by a half bridge composed of just 3 diodes into a direct current. I see two problems with this idea, neither of which may be fatal...
by coulomb
Wed Mar 17, 2021 8:53 pm
Forum: Batteries and Battery Management
Topic: New Replacement Traction Battery - Changes in Construction
Replies: 4
Views: 454

Re: New Replacement Traction Battery - Changes in Construction

centex wrote: what differences are there compared to the original battery?

As far as I know, the only difference will be the LEV50N cells, replacing the original LEV50s. The Ns are a fair improvement, but that's it as far as I know.

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