Part 2- Prius P0A80 Battery Pack Rebuild- Overview and Charge Cycling
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- Опубліковано 8 кві 2021
- Part 2 of rebuilding my Prius battery pack. Summary of what DIY battery pack rebuilding looks like, and then I do some charge/discharge cycling on my battery.
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Great Job. I am working on this project now and you helped with some clarification for me. I found it extremely helpful when you shared your spreadsheet to confirm what a bad cell would look like. Thanks again for taking the time to post this.
Thank you for sharing your experience in detail, has been the most helpful as of yet
Thank you so much for mentioning things like seeing the battery voltage while charging get up to 9v as this was also making me question the process but you have given me a baseline to work from, thank you!
Wow bro, incredibly informative video. Thank you for going into great detail to explain everything. Best video on hybrid battery pack rebuild that I have seen.
Thank you very much, you’ve been very helpful! Truly!
Hello, for hybrid or nimh batteries to work for many years, they require passive and permanent balancing due to their low cell tension, they will not be the same. This is solved by connecting a shunt zener diode with its current limiting resistor. It balances all the cells at the same voltage. It is not perfect and a small percentage of capacity is lost, but it is better than a dead battery after 3 years. This method is highly effective, reliable and easy to integrate, achieving triple the useful life of a battery.
Well explained mate! Easy to understand!
Quick little hot tip. Make sure the wires you use are of good quality. I jacked around for months trying to figure out what was wrong with my charger. The charger was fine. When I finally checked voltages under load at the battery terminals, then at the charger terminals, low and behold, they were different. Changed out the wires and everything made sense.
What brand wires did you use?
@Miami King, I initially ordered and struggled fruitlessly with YXQ wires. Don't get those. Finally I got some new alligator clips and banana connectors, and used some pretty good speaker wires I had laying around to make my own. I had to do some soldering because the aligator clips I used weren't quite big enough.
@@billmansikka4100 I had the same issue Bill, and I can't stress enough how important it is to have good leads for this type of project, don't go cheap here. I thought it was my charger, many bad battery modules, but then finally looked at my new cables. The wire gauge was way too small (20 or maybe less), and both the plug and clip ends were just pinched on, badly at that. I was able to salvage the clips and plugs, used good 16 gauge stranded wire, then soldered all ends. Low and behold my numbers looked like what they should be, much bigger discharging and charging numbers.
Is there a benefit from using 14 awg gauge vs 16 awg gauge. They are the same price online
@@tgsurf62Is there a benefit from using a 14 awg gauge vs 16 awg gauge? They are the same price online
Back when we used this Battery make up and material to race RC cars we would use tail light bulbs soldered together to fast drain our packs before recharging them before the next race.. This could speed up your process if discharging is taking up a lot of your time
Yes Steve, this is very helpful. I purchased the same Venom charger as well. Same as Jim Hartzfeld, It took me quite a while to figure out the programing. I'm now using the exact same settings. Hoping it will work for me too. Thank you so much for this video, much appreciated!
I cannot get the freaking Manual mode to switch to Automatic, I keep pressing dec and inc but it only fluctuates up and down and then it holds but it doesn't change. The Amp is blinking. I tried it in two different devices no luck
All the milliamp numbers and readings you’re getting is the basically in the term to be explained the fuel capacity of each sell the ones that hold larger numbers called larger charge ones that hold lesser numbers probably should be replaced or matched with a different pack I like what you were doing here because this is something we did during RC racing we would take packs and match them with the cells that match the best and even if we had a low number cell as long as it was matched with sales just like it it would be a really good pack
Great watching this video knowing you are not as well versed in what you are doing as one might believe.
Follow every step! 😁👍
I've never done anything like this B4 but ur vids on this have made understanding what to do extremely helpful. Thank you very much for taking the time into making such a detailed tutorial. Now the only question is when will I be able to actually have the time to do this along with being car-less for a week. Guess I need to find a girlfriend with a car
Fun fact: if you read the Venom ProQuad charger manual, you will see that the default setting for NiMH sensitivity is 7mv, not 5. That being said, is it better if it is set to 5mv? Then you are potentially at a risk of under-charging due to early termination. Maybe set sensitivity to 5mv and charge at 4A instead of 5? Idk… I’m new to all of this.
Hey Steve we need part 3 !!
I'll post it on Friday! Sorry, these videos take so long to edit. I have hours and hours of footage from this project!
@@stevevanpelt4475 I totally understand, thank you for uploading these videos, I have learnt a lot watching your videos, btw my 2009 hybrid camry with p0a80 error code is arriving tomorrow, cant wait to put my knowledge to use
Thank you for this video, but i wanna ask about internal resistance limits please, thank you
Also. You talked about leaving a link for your template chart but I don’t see it anywhere. An excel template would be amazing since idk how to use that program.
Thank you Steve for this video, but there was a cut in the shooting. Can you repeat the video and explain the unloading and charging in an easy way and I will be thankful to you
I do this with Tunigy Reaktor Charger. (iIam from germany, i hope you can read my comment). Some modules from my 2006 Lexus GS450H also sweel up. Which one you declare as bad?
I found some bad (very big) swell modules and i stop to charge. But other modules swell up to the sides for 1-2mm (german metric). What is your key swell for the modules.
And the final question: I have modules with discharge results from 5400-3500 mA/h. What is your target to replace a modul?
Greats from germany
could i use the cell data from my torque pro which tells me the voltage of the cells?
Steve, very helpful. I purchased the same Venom charger. It took me quite a while to figure out the programing. I'm now using the exact same settings but having very little success moving beyond only a cycle and a half. DCHG-CHG-DCHG then aborting. With your experience do you have any ideas? Also, even at 5 amps I'm feeling almost no heat in the blades and zero evidence of swelling. I've only had one cycle that reached the 7250 mAh. Hmm. Watching again, I see my NiMH Charge on Manual not automatic. I'll try that.
Changing to Auto did not seem to make much of a difference.
Odd thing, I can't switch this from man to auto. I ran it and 2 modules capped out. Any ideas?
Steeve,
I purchased the same charger, tried to recondition my 2015 prius battery however the mAH after each cycle is getting lower.
I’m doing all your settings.
I was wondering if you could help
What is the amperage capacity on 34 cell NIMH Camry - 1.6kWh … I set the capacity at 7200 & on EV Peak charger & it appears that the machine cutoff at 7200 flashing as if the cell had more amperage room available- than the 7200….I would want each cell to be at full capacity-it has more power for our Camry & battery - overall ….does anyone have the right figures?? THANKS…
Yep
Itll take forrrrrevvver
I'm getting a cap out! Error message after the cycles are done. Happening to all the modules. I have the same settings as you. Have you run into this issue?
hi, just curios, you use 4 chanel, but only 1 light on, per chanel 1. isnt it suppose to be 4 for 4 chanel?
Seems like the car would act juxk like a grid charger?
what do you think about the Dr. Prius app that ID bad cells. Did you buy any replacement cells
It’s not totally accurate. Just gives you a general guidance. I’d get tech stream or a battery balancer/charger/discharged to be safe. I’ve learned hybrid “apps” aren’t reliable.
Dr prius app shows temp three high temp 115!shall i movr cells to other side ans isnthat near fan
i have not able to get to any of the delta peak at anytime - all my settings are correctly followed. i have changed the value to 7000mAH just. please asvise @steve
Rest in Peace
Why did you say that? @YouGotServed835
@@anubismemnon-ra1667 he's no longer with us.
I cannot get the freaking Manual mode to switch to Automatic, I keep pressing dec and inc but it only fluctuates up and down and then it holds but it doesn't change. The Amp is blinking
Venom support said they are collapsing auto man mode in, because they use the same algorithm anyway. So, I proceeded with man mode.
My charger keeps stopping at the 1st D>C, it doesn’t run through the second and third.
I have to keep restarting it to get a second and third discharge then charge.
Also, the top number reaches 7500mAH but the second number is always below 5000mAh but only goes up 100-200mAh at t a time. It’s taking forever to complete the first 4 cells.
Is this normal?
I'm in the process of doing the same thing and am encountering exactly the same thing. Makes the process a whole lot more involved to babysit the charger so much.
If your discharge number is above 5,000mAh, then I consider it a good cell. You may have to run multiple cycles. After 3 cycles, if it doesn't reach 5,000mAh, replace.
hello I have a prius 2010 I provided all the modules and they are fine but it still gives me the code P0A80, what could it be? cells are not balanced.
Old comment. But for people in the future, this could be corrosion in wiring between the HV Ecu and the modules. If your copper bus bars were significantly corroded it is highly likely the corrosion traveled up from there. You can replace these wires as a whole unit. Also, cells too far out of balance could cause this I believe.
""WAT " is displayed on screen ......??? after charging .....what does this mean?????
I brought this charger and on my 1st few cells... i got "cap out".... looking through the manual i cant find this a meaning for this any idea people of earth?
I'm getting the same issue. Have you resolved this?
Hi Pob3d code can you give me a better explanation?
I RATHER JUST REPLACE THE BAD CELLS WITH ONES FROM EBAY
Buying a whole pack with known mileage on it gave me a bit more confidence that the new modules would match the old ones in my pack. I couldn't tell you whether charge cycling really helps or not. I don't know that anyone really has a perfect way to do it- even the well known companies have modules fail frequently on their rebuilt packs. Swapping in a $20 ebay module is cheap, so it can't hurt much!
@@stevevanpelt4475 funny I just brought whole battery pack just few hours ago
I decided it was better than to deal with guessing games
im just a bit worried about the voltage being 7.5 volts donor pirus had 101k miles
Great video, thank you! Is there a link to the blank spreadsheet? If you could share it that would be great!
I heard working on these batteries were dangerous, but from your video I wouldnt know for sure.
Hard to follow. Put settings in desc
Hybrid battery dies quickly if you use the economy mode or the power mode or the EV mode.Avoid these things.
Because those modes use the hybrid battery more?
This is an awesome charger -Hi Steve - can i get your email address or WhatsApp and the template copy...