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by vh2q
Fri Feb 12, 2021 5:23 pm
Forum: Batteries and Battery Management
Topic: Replacing 4 cell pack
Replies: 6
Views: 883

Re: Replacing 4 cell pack

What is the consequence of guessing wrong when switching out the 4 cell module?
by vh2q
Thu Feb 11, 2021 4:11 pm
Forum: Batteries and Battery Management
Topic: Replacing 4 cell pack
Replies: 6
Views: 883

Re: Replacing 4 cell pack

The replacement pack is at 16v. The rest of the traction battery is fully charged. So they are all circa 4V. The balancing function will level it all out, I hope. The bad pack I have one cell that is about 3.6V and another about 4v when the rest of them are at full 4.1V. The BMU shows only 4 bars at...
by vh2q
Tue Feb 09, 2021 5:50 pm
Forum: Batteries and Battery Management
Topic: Replacing 4 cell pack
Replies: 6
Views: 883

Replacing 4 cell pack

About to drop the battery to replace a bad cell. It is one of the cells in a 4 cell pack so i plan to replace the entire module. Could not buy just one cell. Question: is the replacement 4 pack plug and play or am i going to get into an eprom nightmare?
by vh2q
Sun Feb 07, 2021 11:24 am
Forum: General / Main Owners Forum
Topic: hobdrive - and i-MIEV ion zero, show electronic control units, reset errors
Replies: 154
Views: 84357

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

Can someone remind me how to get to the traction battery diagnostics? Ie which screens to navigate? Call me dumb but i hsve done this in the past, cannot remember exactly how, i cant find those screens now even though the rest of it seems to work.
by vh2q
Sun Feb 07, 2021 10:53 am
Forum: Batteries and Battery Management
Topic: Can't get bmu stats thru Hobdrive
Replies: 0
Views: 514

Can't get bmu stats thru Hobdrive

Been a while since i used hobdrive. Have been able to access cell-specific data in the past. I cannot pull them up now. All i get is accy battery voltage. When i hit "screens" and then "diagnostics" i get "initializing" for 5 minutes or more. Maybe my license has expire...
by vh2q
Mon Jan 11, 2021 9:46 am
Forum: Batteries and Battery Management
Topic: Deep Cycle Accy Batty
Replies: 1
Views: 453

Deep Cycle Accy Batty

Would a deep cycle battery not be more appropriate for these cars than the std lead acid? No cranking. But sometimes, if you let the car sit, it does drain the accessory battery.
by vh2q
Sun Jan 10, 2021 11:17 am
Forum: Batteries and Battery Management
Topic: How to charge a 4 cell module out of the car
Replies: 15
Views: 4154

Re: How to charge a 4 cell module out of the car

Pack seem to be OK, never went below 3.3V per cell, all cells coming up and equalized even though I am gang charging. Going to swap this pack out soon. Meanwhile the car has stopped taking a charge at all .. lights on charger cord don't come on at all neither do fans. I am assuming voltage of the ba...
by vh2q
Sun Jan 10, 2021 9:05 am
Forum: Batteries and Battery Management
Topic: battery cover bolt size
Replies: 0
Views: 701

battery cover bolt size

I am going to remove my batty pack to replace one of the 4 cell packs. I have read that the small bolts securing the undertray shear off. Can someone tell me the size so I can have some spares handy? (Car is in a remote place where you can't go down to fastenal). Anything else I should take with me?
by vh2q
Fri Sep 18, 2020 10:28 am
Forum: Batteries and Battery Management
Topic: How to charge a 4 cell module out of the car
Replies: 15
Views: 4154

Re: How to charge a 4 cell module out of the car

Hooked up NOCO in "repair mode" and it's bring up the 4 pack slowly. Took all morning to get from 4.06V to 4.15V. It's delivering 1.5A. So I think that's the ticket. I'll bring it up to 16V, check the balance, and then ship it over to the island. I'll bring the existing pack to 4V per cell...
by vh2q
Wed Sep 16, 2020 11:53 am
Forum: Batteries and Battery Management
Topic: How to charge a 4 cell module out of the car
Replies: 15
Views: 4154

Re: How to charge a 4 cell module out of the car

Great! Thanks. I can put it on a boat or there is an air charter service that says it's AOK to bring on board with me. Will charge that sucker up to 4V per cell, and when I get to Bahamas, will charge the rest of it up (or discharge) to match (have hobdrive). Anyone who wants a free vacation and is ...

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