Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Analyzing, refurbishing/repairing a dead hybrid battery pack (2000 Honda Insight)

sandt38 · 07-12-2014, 10:44 AM

eq1-

Thanks for the info and I will read the thread.

I am using different chargers, that effectively operate the same way that the charger used in this thread work. However, I am not really blind cycling, as I have some very specific battery load testers, to determine effectiveness of the charge. The load testers and chargers are computer based and provide all graphing and analysis information for me, simplifying the analysis of the effectiveness of my charging/cycling.

Sorry, but simply based on the fact that so few people in my industry know how to do what I am doing, and even fewer have really spent the time, money, and effort into figuring out how to do it, I cannot really share the equipment or methods/algorithms I am using... it is simply a matter of making money.

I actually read the entire thread and pulled out certain nuggets I needed to set up my chargers. However, I did notice a few things that I decided to do differently. For example, the charge and discharge rates used are not the rates I elected to use. Not only that, but they are not using what I have found to be the best algorithm to introduce a charge to the chemistry of the batteries in these packs. While the methods described here will work (I am surprised, actually, that the cell/module specifications enclosed within are very, very close to the Gen2 Prius packs, and I have a good amount of experience rebuilding/reconditioning Gen2 Prius packs) I have found that a straight charge is simply not as effective at waking up a weak or dead module as a long term (and well warranted) solution.

So I am not really walking into this blind. However, the specifications enclosed within, the time and effort of the spreadsheet with nicely done results are worthy of tremendous praise as they saved me a lot of time searching for what I needed to establish a baseline for my reconditioning of the packs.

Again, I will check out the thread you linked, as I am always interested in learning how to do what I do even better. So thanks for the link!

07-12-2014, 10:44 AM	#176 (permalink)
sandt38 EcoModding Lurker Join Date: Jul 2014 Location: NC Posts: 3 Thanks: 0 Thanked 0 Times in 0 Posts	eq1- Thanks for the info and I will read the thread. I am using different chargers, that effectively operate the same way that the charger used in this thread work. However, I am not really blind cycling, as I have some very specific battery load testers, to determine effectiveness of the charge. The load testers and chargers are computer based and provide all graphing and analysis information for me, simplifying the analysis of the effectiveness of my charging/cycling. Sorry, but simply based on the fact that so few people in my industry know how to do what I am doing, and even fewer have really spent the time, money, and effort into figuring out how to do it, I cannot really share the equipment or methods/algorithms I am using... it is simply a matter of making money. I actually read the entire thread and pulled out certain nuggets I needed to set up my chargers. However, I did notice a few things that I decided to do differently. For example, the charge and discharge rates used are not the rates I elected to use. Not only that, but they are not using what I have found to be the best algorithm to introduce a charge to the chemistry of the batteries in these packs. While the methods described here will work (I am surprised, actually, that the cell/module specifications enclosed within are very, very close to the Gen2 Prius packs, and I have a good amount of experience rebuilding/reconditioning Gen2 Prius packs) I have found that a straight charge is simply not as effective at waking up a weak or dead module as a long term (and well warranted) solution. So I am not really walking into this blind. However, the specifications enclosed within, the time and effort of the spreadsheet with nicely done results are worthy of tremendous praise as they saved me a lot of time searching for what I needed to establish a baseline for my reconditioning of the packs. Again, I will check out the thread you linked, as I am always interested in learning how to do what I do even better. So thanks for the link!