What do the "prolong" charging systems do for the HV battery?

Yes, you could install a harness to each module, OR spend MUCH less time and purchase Torque Pro for $5. A Bluetooth OBD cost me $12. See pic's...

 

So you'll be charging the battery in the car with the top of the cover off?

Or you'll be installing a separate harness as all the hybrid automotive harness does is connect the leads.

There are apps that can tell you individual block performance while the car is under load.

Or get techstream and see all the individual modules while you put a load on it.

That's what I'd do if I was that curious.

 

I thought that only let you see block voltage (pairs of modules) vs. individual module voltage?

 

You are correct. Torque Pro displays module "pairs". Investigate if a block (pair) is low.

 

I have Torque Pro
Works well, but can't keep up with "voltage spikes". It will show a weaker block, but for me it doesn't give an idea how weak it is.

Yes, separate bundle. As in Prolong - only I would like to get verification and individual charging.
I'm also thinking about adding some BMS to the harness. If it succeeds, it will be possible to use, for example Turnigy Quattro to regenerate the entire battery in one go. Theoretically

What applications for example?

I was thinking about him and probably when I finally get it. However, it requires a laptop, Windows, etc., which is obviously troublesome.
I am going to add the option of charging / discharging from the A / C socket.
The Charger itself should give me enough basic information to predict the problem before it becomes a nuisance.

However, at the same time I would like to test whether it is possible to connect modules in parallel.
Just starting, I do not know the subject well yet. I haven't found anything specific about the second battery for 2gen yet. Probably it was already processed here, but I haven't reached it yet

 

Someone in the forum mentioned the modification of the 12V Battery, which gives an additional Wh (if I understood correctly) ...
I will be grateful if you can tell me more about this, what exactly is going on?
I can't find it the second time, and it was just a mention in the post.

 

If it ever really was here it probably has been deleted.
"modification" of batteries is generally not possible......except by adding cells in some rare instances.

 

I mean a regular 12V starter battery
Someone wrote that something could be done with him (replace with another type or something) and it was supposed to help in something.
I saw one thread and now I can't find it :/

Posted via the PriusChat mobile app.

 

But, add the second is possible?
Were all these projects a misfire and nothing came of it in the long run?

I need to find time and go through all the posts in these topics ... But where to get so much time, since reading here for half a year minimum

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Might this be the thread you're thinking of? : Fitting mobility 12volt AGM battery. | PriusChat

 

Great idea. Don't know much about that Quattro product, but a BMS sounds perfect.

Check out Hybrid Assistant, and the sister graphing app Hybrid Reported. You may need high quality OBD2 adapter Hybrid battery diagnostic and repair tool for Toyota and Lexus

Any windows device should work, just needs to have a USB port. You can also emulate windows with https://virtualbox.org

Do you mean a second HV battery, or a second 12v battery?[/QUOTE]

 

Yes I know what you meant.
No "modifications" are possible.
But generally an AGM type is better when it comes time to replace it.
Older models had that type standard; newer models don't.

 

The use of appropriate BMS gives one more possibility - an open gate for attempts to change from Ni-Mh to Li-ion. At least that's the target plan

All right, I'll check. Thanks

I was thinking about a second HV battery (or increasing / expanding the current capacity).
However, after the strange behavior of my 12V Battery during HV battery failure, I also started to wonder if I would try to put on an additional small 12V deep cycle.
All the more so when I read here that the 12V battery is not responsible for starting the ICE, so the starting current of the 12V battery does not matter, as in the case of ordinary cars.
I hope I understand this correctly? Please correct me if I'm wrong

In my case, the car after a few minutes on the standby was able to "suck" 12V battery to 9V which, e.g. the day before was fully charged. But, I suspect it could also be the fault of the damaged 6.5V modules in the HV battery.

However, deep cycle batteries e.g. to UPS give off much more energy at the same capacity compared to normal starting, and since Prius doesn't need a 12V start it seems to me that it's better to invest in capacity than unnecessary starting current.
What do You think about that?

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In that case, I had to misunderstand that post mentioning increased "power"

In general, but not always. As usual, the point is in the details
E.g
AGMs are better for start / stop systems and better endure charging with higher current, they also require a less complicated maintenance process (no problems with electrolyte density).
But they are also much more expensive.
The question is whether at the present time, when better technology appears every year, it makes sense to spend 2x more money on outdated ...
In my opinion, a better option is to choose (if the start / stop system is not supported by a 12V battery) a good or very good quality traditional Ca-Ca battery than a budget AGM (in which the manufacturer for savings, mounted thinner plates or one less, there are also cases of mounting shorter panels and a "filling mat" on the bottom). I saw tests of cheap AGM Batteries, which instead of the declared 45Ah had barely 30Ah...
Also the most important is to buy a proven product, and since "We" do not need a start-up, why overpay
Behind 3-4 years, when a standard Lead acid one dies it is possible that 12V batteries on 18650 or 21700 cells will already be widely available



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You are correct on the 12v, have seen some additional 12v capacity installed in the empty cubby opposite of the 12v battery.

Others have installed additional HV capacity as well (search is your friend), not sure if anyone has done this recently. Though I vaguely remember someone in Australia who purchased an existing vehicle with an active setup, maybe @Phildo can point you in that direction.

Never leave the vehicle in standby or accessory mode, leave it in 'ready' or off.

Again, sounds correct.

Would be curious to see those test results, please post if possible.

 

The original recess is also quite large to insert a larger or second smaller one. Unless someone really needs 150Ah+

Believe me, I always check the search engine several times before I ask. But after passing "10" threads from above, the desire to continue searching decreases significantly
In part, of course, this is due to my ignorance of the characteristic keywords, and not the malfunction of the search engine - I'm aware of that too

Valuable advice!
It seems logical that the standby consumes less energy, but it is in "ordinary" cars ... I have to change my thinking

First example from the shore. Based on 7Ah for monitoring systems, but the principle is the same. In Polish, but the picture says it all

As a curiosity, here is a comparison of the discharge times of different versions of 12V batteries. One test "in the field" on the electric motor for the boat, the second in the laboratory, on the 30A discharger - the first discharge after removal from the warehouse, the second after proper charging (the test concerned the charging option, but it also gives a visual image of what we can count on with given types of batteries).
https://photos.app.goo.gl/Kyig43ahnA6bk14b7
WE ALSO REMEMBER that AGM achieves the best parameters at a temperature only of 20-25 °C, ordinary is not so sensitive to temperature.

The conclusion is always the same - buying a cheap budget Battery almost certainly overpay and choose the Battery for specific needs / conditions by buying from proven specialized sellers...
Hence my conclusion that ordinary high-end (not necessarily a large known company) will be better than the budgeted AGM.

Generally a "river theme"
I really encourage you to explore the topic of 12V batteries on your local channels / forums of enthusiasts - You will probably be quite surprised by how many things you did incorrectly


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Do You remember, in these mods the 12V battery in the additional compartment on the opposite side was connected to the HV battery to increase its capacity, e.g. through a DC-DC converter or just to double the 12V capacity when parking?



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Finally a straight answer, how hard is for most of the people to get to the point, thank you for you honest answer.

 

Well here's my thread from our old Gen3 that had the Prolong equipment installed in it:

2010 Prius II HV Battery Reconditioning

Used it for 2 years and shared it with a couple of other members.

I would still have the Prius if someone else didn't need reliable transportation and I didn't get the itch to upgrade to a PHEV.

But the equipment works well and made for one less thing to worry about as the miles piled on.

 

Thinking it was used for additional 12v capacity, or as backup, or for a sound system, or with an AC inverter.

Never heard of someone trying to connect a DC-DC converted 12v source into the HV battery before, let us know if you learn otherwise.