My new 2005 Prius hybrid battery trouble shooting

Thanks. That is the plan. Im curious what other peoples battery numbers look like. Here are mine typically. Voltage and Internal resistance and temp of the three blocks. Also what data should i be looking at ?

The ir of 10 and 14 is always a little higher than the others.

 

This is great! Thanks so much. I'll post after my reconditioning and post back.

 

Thanks! Sounds awesome. Just what i am after. Pm sent !

 

I got my grid charger yesterday! Yay. Hooked up and running. Super easy install. 4 wires.

Thanks Maxx Volts for the immediate shipping and great support! They are knocking it out of the park support wise. I never saw much online on this company or grid chargers in general about how helpful they are for prius and it made it hard to pull the trigger on a 430.00 charger and decide which one, and do i need discharge option, yada yada. So hopefully this thread will help.


I pulled the trigger early morning Thursday and ordered after emailing with Maxx back and forth a couple hours and it arrived saturday / yesterday usps. Product looks good. I got the timer with wifi iphone control. Not sure ill use that. I think it was $430.00 or something. There is no discharge option. Maxx says it is dangerous ... im not really sure what is what on that bit i was glad to not have to spend more money. Seems easy to build a discharger anyway lightbulb anyone ?

Super easy install. 4 wires only. I wanted to see what my battery looked like so i took off cover.

Its been on now for about 8 hrs. I cant wait to drive it amd read the numbers. Here are some shots of my battery and the charger when i first turmed it on and what it reads now.

The battery was sitting pretty charged up when i first turned it on. I was expecting it to be closer to 200

Thanks

 

Yes. This was the explanation given to me. It keeps charging and soaks any lagging cells for 4 hours so they all reach. I'm about to go read my numbers. What kind of charger do you have Jim?

I couldn't find much real world data beyond "It helped me once" on Maxx-Volts chargers on any grid charger for longterm data independent of the respective websites marketing testimonial pages. Things like like "I got 50,000 more miles from my battery grid charging every month, " Or , "My car only throws a code every 6 mos now and I grid charge it and am good to go" , or "When i get a bad cell , I get a used cell off ebay, grid charge it and I am good for another year until another cell wears out"

 

Thanks All. Sponsoring is a form of advertising so I don't care unless I already know about the two products and they were the same and then I would buy from a sponsor. Basically i saw three grid chargers -- prolong, maxx-volts , and another one that bought the 99mpg plans. Prolong wanted 300 more bucks for a discharge kit which turned me off a bit. And JC and you saying i can build a discharge system for 3.00 makes me think my suspicions were correct. Maxx-volts was quick to answer my questions and support has been good and I liked the look of it. So here we are.

My goal is to understand what is practical to do with these battery packs versus just getting a new one. I'm thinking both for myself as a DIY wanting to save a buck and regular people who will be looking for advice and direction from their mechanic. I have a lot of friends with Prius's and have a shop at my house. Though it is just my part time weekend job, I work on a lot of other people's cars.

It may be practical for me to charge and discharge my pack every year and replace modules and keep it going but will that be practical for customers to pay me to do that? Can you charge and then charge and discharge at a later date when you have more time?

It would be ideal to just be able to drive the car in ev mode to discharge it and monitor the battery. Is that possible? I need to read about the discharging.

Does anyone have any longterm data using their grid charger?

Thanks

 

Ha, exactly like it. How is it working for you? What is your procedure? How long has it extended your battery pack. Any numbers before and after use?

As an aside, did prolong copy Maxx or Maxx copy prolong? Not that it matters. Lol.

 

Ok. Here are my numbers after 12 hr on grid charger and then resting for an hour before driving. It settled at 241 V.

Notes
1. The soc is 59.5 %. Is that normal? Interesting ? Why not 100% ?

2. The ir was all the same and didnt jump around and be different during the drive. They started at .019 then migrated up to .027 ohm in my short drive. Ut didnt fluctuate.

3. Voltage was all pretty even. The diff between min and max as i drove (hard to tell really safely while driving ) was mostly around .1 but occasionally .3 v

How do these numbers look?
I ran max ac right away and no codes.

One thing is when im just reading the battery module voltsges at a stand still with ignition on and car off , they move a little bit between polls of the scanner. Is that normal? Or should they just be steady ?

Thanks.

 

Thanks, Jim. Hmm. So are you suggesting that my older battery modules just don't make up as big of a "tank" as they used to , thus the 60% SOC after charging for 12 hrs?

P.S. Are you going to get back to me on that battery pack? I'm definitely interested