Nimh IMA Battery. Rejuvenation Procedure....

56657 Views 387 Replies 44 Participants Last post by Parker87, 2 mo ago

PeterPerkins

Discussion Starter · Dec 18, 2020 (Edited)

A detailed walkthrough on how to charge/discharge and cycle your old lazy CR-Z/Insight G2/Jazz Hybrid Nimh IMA battery to restore some performance?

It's a well established relatively inexpensive maintenance technique used successfully for many years on the other Honda Nimh IMA cars.

I'll do a text/video guide for the process/equipment/connections if there is enough interest.

Note. The IMA battery does not have to be removed from the car to carry out this process.

Have a safe Christmas. Peter UK

PS If something already exists along these lines please let me know.

Reactions: 5

241 - 260 of 388 Posts

Jeffd

· #241 · Apr 8, 2022

Will it? That's a new one !!

PeterPerkins

Discussion Starter · #242 · Apr 8, 2022 (Edited)

J1000 said:
Or just pull your 12v negative terminal for a minute or two that will also reset the battery capacity.

That resets the SOC not the useable capacity.

Reactions: 2

Naazir

· #243 · Apr 11, 2022

@PeterPerkins, I own a Honda Fit Gp1 Hybrid, which has a similar CRZ NimH battery pack. As per your guidance I tried balancing charging for 24hrs, but my batteries were too lazy and was back to 23% within a month. Decide to follow your 2nd step by discharging and cycling, a quick concern regarding the discharge, I will be using 240v 60w bulb, should i leave it connected until the voltage drops to 0v in the pack? or just until the light glow off. pls help. Thanks for all your support.

PeterPerkins

Discussion Starter · #244 · Apr 11, 2022

Naazir said:
I will be using 240v 60w bulb, should i leave it connected until the voltage drops to 0v in the pack? or just until the light glow off.

When the bulb goes out will be low enough for the first discharge, but if you do two cycles then leave it for a few hours after the bulb goes out on the second time.
It's not critical either way.

Naazir

· #245 · Apr 11, 2022

PeterPerkins said:
When the bulb goes out will be low enough for the first discharge, but if you do two cycles then leave it for a few hours after the bulb goes out on the second time.
It's not critical either way.

Thanks Mr. Peter. Will do as advised. Will keep you updated on the progress.

ctroxtell

· #246 · Apr 18, 2022

@PeterPerkins What output voltage do we need on the led drivers? I found 300mA on Amazon but there are several different output voltages. https://www.amazon.com/Chanzon-Cons...efix=led+driver+cc+250ma,aps,163&sr=8-40&th=1

PeterPerkins

Discussion Starter · #247 · Apr 19, 2022

That info is in this thread.

But you need a combined voltage of about 130-160V capability.
So two x 65V ones in series or one x 130V etc etc

The LED drivers must be the constant current type with a maximum current output of 350ma or less.

ctroxtell

· #248 · Apr 19, 2022

Sorry, I should of asked more specifically...these seem to have a range of dc out voltage, is this saying the dc out voltage varies depends on ac in? So this driver puts out 36v dc with 100v ac, so at 110v this would only output about 38v dc? Thanks for the help with my confusion.

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PeterPerkins

Discussion Starter · #249 · Apr 19, 2022

They should work. You need two with the DC output in series.

Reactions: 1

ctroxtell

· #250 · Apr 19, 2022

Okay, thanks I ordered two of those. I was just assuming that the DC output would only be 132v dc in series if you were feeding it 240v. Under that assumption feeding it 120v in the US would barely be pushing maybe 70v dc.

Jeffd

· #251 · Apr 19, 2022

Ahhaaaa! USA only 120v. How antique

Reactions: 1

PeterPerkins

Discussion Starter · #252 · Apr 20, 2022

I found a single LED driver with a voltage range that appears suitable for the UK.

Circuit component Electronic component Electronic engineering Cable Electrical wiring

Its a tiny PCB and seemed to put out the right voltage in my bench tests but would likely need some cooling for the claimed wattage.....

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Reactions: 1

ctroxtell

· #253 · Apr 24, 2022

PeterPerkins said:
They should work. You need two with the DC output in series.

Just wired these up and am getting about 165v dc out of this. That's too much for charging the battery isn't it?

PeterPerkins

Discussion Starter · #254 · Apr 24, 2022

ctroxtell said:
Just wired these up and am getting about 165v dc out of this. That's too much for charging the battery isn't it?

That's fine, that will be an unloaded voltage, they all do that..

Reactions: 1

ctroxtell

· #255 · Apr 26, 2022

The pack got to about 118v, when I connect a 60w 130v light to it nothing happens. If I put a CFL bulb in it then it just kind of does a continuous fast flash. Maybe the alligator clip wires can't handle the current or am I missing something here?

PeterPerkins

Discussion Starter · #256 · Apr 26, 2022

You must use a standard 60w incandescent bulb not a CFL.
Your bulb must be blown then or you have a bad connection in your wires.

ctroxtell

· #257 · Apr 26, 2022

PeterPerkins said:
You must use a standard 60w incandescent bulb not a CFL.
Your bulb must be blown then or you have a bad connection in your wires.

I wasn't using the right connections. I used the right side front 2 Phillips head screws to charge, which seemed to work, but you can't connect a bulb using that setup. I realized you pulled the negative off of the connection further back on the right side of the battery pack. I attached my negative to that post and the light lit right up. Thanks.

PeterPerkins

Discussion Starter · #258 · Apr 27, 2022

ctroxtell said:
I wasn't using the right connections. I used the right side front 2 Phillips head screws to charge, which seemed to work, but you can't connect a bulb using that setup.

Please post a pic of exactly where you wrongly connected.
I hope you have not damaged anything.

ctroxtell

· #259 · Apr 27, 2022 (Edited)

PeterPerkins said:
Please post a pic of exactly where you wrongly connected.
I hope you have not damaged anything.

I had charged it with these two Phillips headed screws that sit just to the right of the Panasonic label I think it is, my meter was showing a complete circuit of 104v before charge and 118v afterwards.

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Wahonoid

· #260 · 12 mo ago (Edited)

Halo pak Peter Perkins ..saya dari indonesia ... mungkin anda bisa membantu saya,saya punya masalah dengan honda crz dengan kode dtc P0B3B dan saya sulit mendapatkan bagian untuk diganti .. saya perlu modul kontrol baterai dengan nomor bagian 1K440 RW0 013 dengan kode A, B, C dan D yang Anda miliki pak untuk bagian ini tolong putar ulang pertanyaan saya ... terima kasih ... ini nomor aplikasi whatss saya +628161337230.

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