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This One Secret Can Double The Life Of Your Toyota Prius Hybrid Battery

There are many voices out there competing for your attention when it comes to fixing your hybrid battery. When we get right down to it, we should have learned how to take care of your Toyota Prius hybrid battery long ago. Learn why I am flying to Brazil to teach shop owners why this secret is so important.

If you have read any of my previous articles on hybrid batteries or hybrid battery repair, you already know how critical taking care of your hybrid battery is. The thing is, most consumers have no idea why their battery fails in the first place or what the symptoms are before failure.

We are taught that you drive your Prius, and if the battery fails, you have three options. Get it covered under warranty, replace it with a new or remanufactured one, or get a new car. The sad part is this, very few Prius owners get their battery covered under warranty. Once battery failure occurs, you only have two rather expensive options replacement of the battery or the car. Neither of which a hybrid owner wants to have to deal with.

What if there was a solution to this problem? What if we could double the expected life of our hybrid battery just by learning a few simple things about it? The good news is this is 100% possible, and it is available to Prius owners everywhere.

I am so passionate about hybrid battery maintenance that I am literally, as of this moment in writing flying down to Brazil. I have been asked to be a guest speaker at an automotive conference, my topic? Hybrid battery reconditioning and maintenance. Why? Because it is possible to keep your battery healthy for longer, and it is very affordable.

I want to give you some free knowledge here that I know will benefit every Prius owner on the planet. Then you can decide if it is right for you. Here is what you need to know about double the expected life of your hybrid battery.

What Causes Toyota Prius Hybrid Batteries To Fail?
First, we need to do some science here. Do not worry, there is no test on this, and I am going to give you all the answers you need. The science behind what makes our Prius go is the battery. The battery is made out of something called Nickel-Metal Hydride or for short NiMH.

Remember having an RC car as a kid? Then you probably remember Nickel Cadmium or NiCad batteries. I hated it when my truck only gave me 5 minutes of playtime after I charged it for hours on end. The thing was, I never knew what caused the issue, so I never knew how to correct it. The same thing happens with our Prius' and other hybrids.

Think about it like this. Visualize a bucket, in a river, filling with water. The water flows in the bucket, it fills up, and then the liquid flows out. If we were to go and pull the bucket from the river and pour it out, we would have, however, many gallons of water available to us from that bucket. Battery capacity is similar to this principle. In our hybrid batteries, we have a set level of capacity or storage that the individual cells can hold. If we start with a 5-gallon bucket, we have a lot of available capacity for use.

Now imagine that bucket staying in the river for years on end. What would happen? Believe it when I tell you that over time, that bucket would start to fill up with silt or debris that would begin to decrease the capacity or available storage of the bucket. It is the same idea as our Prius traction battery. This process is called voltage depression or crystal formation, and it is 100% going to happen. That is the bad news, battery failure is inevitable and will happen, it is just a matter of when.

Toyota Prius Voltage depsression

Luckily, we do not have to use NiCad batteries in our Prius, but we do have NiMH. This battery technology was hailed at the solution to the battery memory problem that plagued its predecessor. The thing was, the technology was still so new when Prius and Insight came out, we had no idea that we would be facing similar challenges with this new battery. Now all these years later, we are facing a memory effect. Now we know why our batteries are failing.

Ok, great, so every hybrid owner that has NiMH batteries is going to have a failure, thank you, Pete, I guess? You are darn tootin' you should be saying thanks because I am about to drop some seriously sweet knowledge on you about what can be done to postpone the problem for a much longer time.

The Secret The Dealers Do Not Want You To Know, Hybrid Battery Maintenance
Here is the secret that every Toyota dealer will never tell you about your NiMH hybrid battery. It is 100% serviceable. I know you are asking yourself the same question that I did when I was first learned about this concept. How do you service a hybrid battery? Does the Prius not maintain it by itself?

Excellent questions let us unpack this. When Prius and Insight first came out, there was not much data for these batteries over a long time. It was not until failures started occurring that people began to question why they were failing. Do you know why people began to question it? Because it cost a small fortune to have it replaced, that is why.

Toyota Prius battery modules

Prius and all other hybrids that are using NiMH have software built into the BCM (battery Control Module) that only allows the battery to cycle anywhere from 20 to 80 percent state of charge. In doing so, this keeps the battery chemistry happy, and we can see a longer life out of it. The bad news is that it causes voltage depressions or "silt in the bucket."

Okay, I get it, silt in the bucket, so now what? We get a reconditioned battery and drive the car. Yeah, you can do that, but ask yourself this question. What if you did not have to replace the battery for even longer than expected? Would that not be worth looking into? Of course, it would.

This is precisely what drove the owner of Hybrid Automotive to find a solution that is giving Prius, Insight, and other hybrid owners freedom from battery replacement. He did the hard work, figuring out how. How batteries fail, and what can be done to repair and maintain them. He took what the repair companies were doing and packaged it in a ridiculously simple package that any hybrid owner can use. It is the Prolong Hybrid Battery Reconditioning package only available through Hybrid Automotive.

How Can The Prolong System Help My Prius?
Excellent question. Let me ask you one first. How long do you expect you will own your Prius? Five years, ten years, longer? If you want to own a Prius, you need this tool.

The complete system is an easy install of a wiring harness and a weekend recondition on your battery two times a year. The system, once installed, works with your aging battery to help remove the crystal formation/voltage depressions and restore lost capacity.

prolong battery maintenance system for Toyot Prius

Remember the bucket? What if you could dip your hand in the bucket and clear out the silt? Would you then have more room for water? Heck, yes, you would. So, what if periodically you went in and kept clearing out as much silt as you could from the bucket? Do you think you would have more available capacity at the time you need it most? Of course, you would.

This system does just that, and it is incredibly affordable. The whole system is less than half the cost of a remanufactured hybrid battery for your Prius. You are welcome. I just saved you thousands of dollars over the lifetime of your Prius.

Where Can I Get This System For My Toyota Prius?
If you are interested in learning more about this product, please let me know. Find me on social media, send me an email, I will gladly explain anything unclear to you about how this system can take care of your Prius or other hybrid vehicles.

If you have seen the value already and want to get started, take a look here that will ensure you will get a kit that fits your Prius.

Key Take Away From Today
Hybrids like our Toyota Prius' that use NiMH will get a memory effect; it will happen. When your battery fails, it will be expensive, and no just replacing one module is not a lasting repair, it is a band-aid best. The pack will be unbalanced, and you will be out more time and more money. Both of which no one wants.

Ask yourself these questions, though. If all this product did was help you maintain peak battery performance, would it be worth it? If all that happened was that you doubled the expected life on your hybrid battery, would it be worth it? Of course, it would be. We both see the value in it. We both know it is worth the relatively small investment that will pay for itself within the first time you use it.

You can slow the voltage depressions drastically by using the Prolong kit from Hybrid Automotive. It is proven to recover and restore capacity in your hybrid battery. Some batteries are not great candidates for reconditioning, but if your Prius has not failed yet, you are an even better candidate. Preventative maintenance will, for sure, keep your battery running longer and give you many more miles of trouble-free driving.

Again, feel free to reach out to me if you have questions, I am more than happy to help any Prius or hybrid owner get the most out of their car. I own two hybrids myself and have the kit installed on them. I am entering a long term study with a 2nd generation Prius to see how long I can keep the original battery in service. It is going to be exciting.

Thank you so much for reading. This is a long but necessary story. I do it because more hybrid owners need this product. We need to maintain our battery on our cars, and we need to keep them on the road longer.

Be sure to check out my other story, Three reasons you should run Nokian snow tires on your Prius Prime.

Watch the 2021 Toyota RAV4 Plug-in Hybrid Prime video presentation and click to subscribe to Torque News Youtube channel for daily automotive news analysis.

Peter Neilson is an automotive consultant specializing in electric cars and hybrid battery technologies. He holds a Bachelor of Science in Automotive Service Technology from Weber State University. Peter is also an Instructor of Automotive Technology at Columbia Basin College. Peter can be reached on Linkedin and you can tweet him at The_hybrid_guy on Twitter. Find his page on Facebook at Certified Auto Consulting

Comments

Linda C (not verified)    December 7, 2019 - 11:34AM

I have a first gen 2002 original battery , high mileage, how well will this work with first gen? (original owner bought off the lot in 2002.)
I am getting a warning light and battery drains quick)

Rod Crosby (not verified)    December 7, 2019 - 11:35AM

Only interested in Hybrid battery longevity. Driving a 14 Prius with 60k miles. To date best vehicle I’ve ever owned. Please keep me up to date on relevant issues.
Thanks.

Skeptical (not verified)    December 7, 2019 - 11:58AM

Not sure what all this stealth email for more info... But I am and did. Please email me the main info what? How much? Etc. Thank you

Peter Neilson    December 7, 2019 - 10:38PM

In reply to by Skeptical (not verified)

Sorry Skeptical. I get a ton of questions on this all the time, so I tell people that want to know, just email me. It is hard when people do not understand enough about the batteries and think that this is a scam. They are dead wrong. We know NiMH does this and we know that cycling the battery will clear up some lost capacity. Its basic science, not a Ponzi scheme.

Luis (not verified)    December 7, 2019 - 12:31PM

I had a cell replaced by a mechanic, he charged me 350.00 and the car run fine for 1200miles then failed again. I learned from this mechanic on how to do the job myself so I bought a used cell and installed it my self. However, while doing the job, I noticed that the connectors to the batteries were corroded. I cleaned them all with vinegar reinstalled them and now I have 13000 miles on this job. I feel that battery corrosion plays a big role on battery failure. I will recommend battery preventative maintenance at 100k miles and that includes reconditioning if you can. But, just cleaning the terminals will expand the life of your battery life.

Peter Neilson    December 7, 2019 - 10:36PM

In reply to by Luis (not verified)

The reason it failed is that the module was probably either too old or too new for the pack and it became unbalanced after a short time. The bus bars can cause this yes but in a few cases. NiMH will always get voltage depressions and it must be cleared out in order to maintain long battery life. Balance the battery, do it right, this is an investment.

Rodney (not verified)    December 7, 2019 - 4:49PM

I have a 2011 prius with 211,000 + miles. Never a problem with the hybrid battery. Still using original 12 volt it came with. Keeping the air vent from getting blocked, not driving with windows down, and not smoking prevents dust and such from getting sucked into the hybrid battery area and collecting around the cells which in turn overheat the battery causing failure. I also can still go at least a mile in EV mode. Sometimes farther.

Lorenzo Torres (not verified)    December 7, 2019 - 6:08PM

Thanks Peter for the info. It's just like running a trickle charger on lead acid batteries that sit for long periods.

How long do you let the Prius "cook" each time that you use the Prolong rejuvinator?

John (not verified)    December 7, 2019 - 7:58PM

From what I read, this is basically a high voltage DC trickle charger that tops off your battery over a few hours. When a cell gets full, it starts converting the extra charge to heat (very little though, as it's a trickle charger) and this allows the other cells to catch up and fully charge.
Then you can use one of their dischargers or do it manually with some 100w household (incandescent) light bulbs down to a certain voltage, but you must watch carefully not to overdischarge and risk reversing a cell.
Once discharged, you charge it again (takes many hours) with their charger.
They recommend you do this 3 times over a weekend, stopping at a lower voltage each discharge.
From one person thst used it, I read that this restored 20% of the lost capacity, which I see as rejuvenating the battery by 1-2 years or 20-30k miles.
It totally makes sense thst this approach would work, but a high voltage low current trickle charges with no charge-end sensing circuitry does not have to cost $700.
Jist my 2 cents.

Peter Neilson    December 7, 2019 - 10:51PM

In reply to by John (not verified)

Nailed it John. The thing that is really great about the system is that the discharger has an automatic voltage termination feature built into the discharger. That really can save your bacon and it is almost fool proof. I look at the equipment as an investment for my car. I can spend the $700 and use it for the next few years and double the life of my battery, thus not having to spend over $1000 or more to get another one. It pays for its self really when you look at it from that perspective. Plus, you could do it for your Prius friends who don't want to do it themselves and make your money back just as a side gig. Not too shabby if you ask me.

Matthew DeGeorge (not verified)    February 27, 2020 - 7:18PM

353,000 on the original traction battery of my 2008. I drive almost 30,000 miles a year and the secret to long battery life is to use it. In my opinion as a hybrid driver, If you drive under 15,000 miles a year or leave the car not running for long stretches of time, don't buy a hybrid.

Mike L (not verified)    March 4, 2020 - 2:22PM

I clicked on the link. I clicked on the product. I gave it my model & year. Here's my only concern: I had to replace my battery at the Toyota dealership about 5 or 6 years ago. Can I be sure that they used the same or compatible battery? I'd hate to shell out over $600 bucks and then set my car on fire. Any chance they could have used an after-market battery that would for some reason be incompatible with the equipment I'm looking at purchasing?
Thanks

WILLIAM V (not verified)    May 13, 2020 - 12:31AM

Hi, I'm looking into buying gen 2 battteries from salvage. I'm planning to re group two to 3 complete batteries to run my solar RV . I have 8-200 watt 24 volt panels in to 2 pmmt(4 panels per controller) controllers then to the batteries. re configuring to 12 volt to run 2- 120 volt 3000/6000 peak watt inverters. How will this aid in my situation?

Crystal (not verified)    July 10, 2020 - 8:14PM

Just HOW does this " works with your aging battery to help remove the crystal formation/voltage depressions"?

You say nothing about how it does it but do a great comparison with a bucket of water.

Gwen (not verified)    September 19, 2020 - 7:05PM

This is predatory do not buy this he clearly doesn’t know what he’s talking about and get a commission to market and sell this. Don’t fall for it. “Walk you through the process” come on people he’s a loser!!!

brian g shaw (not verified)    November 10, 2020 - 11:03AM

Everything Pete is saying is true. Just had some work done to my 2004 and the guy was discussing with me the memory issues. He had his own setup in his shop that de-crystallizes the cells to allow deeper charges and extend the battery life. Just like the batteries of an RC car will loose deep charge ability, the Prius will do the same. Its not snake oil, its chemistry and science.

Homey Clown (not verified)    November 14, 2020 - 9:01AM

What is the difference between the prolong charger and just a dc power supply like a LPC-100-350? Other than maybe stop charging at some setpoint is there any added functionality? Like is it pulsing crystals away or anything crazy like that? I would like to have a prolong but 700 bucks is silly high when the alternative is less than 100 bucks. I tried to buy one off craigslist to play with but found the replacement harness would cost me 150 bucks for a few wires. Where's the beef?

William Pyles (not verified)    December 17, 2020 - 10:18PM

Article is a thinly masked advertisement. $2K for a battery conditioner. Toyota offers 10 year, 150,000 Mike warranties now on their hybrid batteries, so save your money. They'll continue to run fine for a long time.

James (not verified)    February 7, 2021 - 9:55AM

I have a 2011 ford fusion hybrid with 146K. Car runs good and has no issues that Im aware of. I read your explanation on hybrid batteries and have been getting myself mentally reading for the dreaded battery failure to happen sooner or later. I am pretty good mechanically and can fix most machines with the help of the internet.
Most all the info i have seen on the web pertains to the Prius/Toyota hybrid battery systems. Not much for the Fords. I dont want to tear into my battery without technical info about disassembly and reassembly.
Thank James

BilljustBill (not verified)    February 25, 2021 - 11:34AM

Would this type of technology work for conditioning a set 8 L-16 lead acid batteries or a forklift type battery used in off grid solar panels?