If we used Lithium Battery instead of 12volt Lead-Acid one ?

If there was a problem I would have come back and posted, but been happy until now. Planning on bumping my thread at year 4....

REVVL V+ 5G ?

 

Only thing that's different between a standard 12v and a lithium 12v is that the Lithium one requires some relatively inexpensive battery management electronics to make sure it doesn't operate outside of safe parameters.

 

I got mine from a seller on eBay. I found my old email confirmation but when I clicked on the item it wasn't exactly what I got. The one I have has a battery backup which you press the button and can start the car if you accidentally drain the main one. A lot of what they sell now doesn't have the backup. (And to be honest I've never had to use it). So anyways I searched and this is the cheapest one now (with backup):

46B24R 12V 20Ah 40Ah 46Ah Smart BMS Control Lithium Phosphate Battery LiFePO4 | eBay

It seems the backup version includes the 20Ah as the main battery. You could probably get away with just that. (Back in mid to late 2018 I paid $361 or somewhere around that)...

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Well, I still have 2 years and some months to go to reach 6 years, but it does look promising so far. (I bought the warranty that eBay sells and it went to waste. Back then they came with 1 yr warranties and the eBay one was for 2)....

Actually the battery came with JIS terminals and a pair of copper rings to convert to SAE if needed. You can verify/confirm with the seller prior to purchase both the size of the terminals and position of + and -. (I did for both and was pleasantly surprised that adapters were included). I definitely did not want to deal with the wrong size terminals or POS and NEG being on the wrong side, especially at that price point.

Mine did come with "edges" aka bottom mount lips that gave me trouble with installation. As it is mine does not sit flat because of them. I did make the seller aware and some appear to offer the option to have it with or without bottom mount "edges". I actually said "edges" in my discussion/messaging to them, so that is where they got it from. The seller I dealt with didn't have a very strong English proficiency and having dealt with Chinese a lot of my life I tried to make my wording as easy to understand as possible. I would suspect sellers based in Hong Kong or Taiwan to have better English vs the Chinese mainland ones.

The batteries are shipped fully charged, and I recall the instructions say to use the onboard V meter to verify it has "arount 13.2 V". (Yes, around is spelled with a "t". I vaguely remember it was 13.3 V but don't quote me on that).

The instructions say the charging input should be 13 V - 15 V, and this coincides exactly with Toyota service specification when checking the "charging system".

Yes, my back was forever grateful with the lightness.

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Braille Battery in FL was my first exposure to the Lithium batteries. They are horribly expensive in comparison. There is another company that is priced somewhat in the middle but has less sizes available. I forgot the name (because of the size limit) but they have a remote to enable the backup pack. (There is a 100-20 (BCI Group 49, H8) Chinese one that has this as well now. Also one seller offers to fill the typically 100Ah with 120Ah worth of cells instead). Since I never used the backup I was thinking of going for that instead. If you look carefully there is "Best Offer" you can ask for a little discount....

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BTW- Looks like Porsche knew about this possibility a long time ago:

https://www.porsche.com/usa/aboutporsche/pressreleases/pag/?pool=international-de&id=2009-11-23-02

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Lead Acid battery is the most environmental friendly battery with 99% recycled materials. It last much longer than any Lithium battery under normal usage in cars with extreeme heat in summer and cold winter.
Li battery fits well for something that you kept it from extreeme heat and cold like power tools or laptop. It is just dumb using 12V Lithium battery in car. Even Tesla do not use them. Because Tesla maker is not that stupid.
Li battery is practically not recyclable besides the plastic and small portion of the cathode. The anode is just carbon. The Li and electrolyte becomes total waste

 

Shrugs...

Used Lithium-Ion Batteries | US EPA

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I talked about real recyclability. Not campaign and gimmick of the government. Lithium-ion battery recycling is not that profitable and often it is greener by reuse the battery for something else like as battery bank for electric grids. The recylability is not more than 50% of the whole Lithium battery. Many states of the electrolyte and Li-salt separation will cost more than the products.
I am not sure if some of us have time and get a salary from Battery RnD research.
Any Li battery is never better than a comparable Lead-Acid battery from Walmart for cars in terms of performance, durability, and value.
Not everything with Li battery is beneficial. Some of us are ignorance but we learn together. Pb-acid battery is not replaceable by any kind of battery for cars. It is just the best and cheap too.

You may need Li battery for deep charge applications like boat, but not for cars that we always top it off all the time. Li battery degrades really fast in fully charge states all the time. That's why my Laptop battery can last 5-8 years and still 90% capacity by limiting the charging state from BIOS or software up to 50-60% only. If you do not do that, most Laptop battery degrades to less than 50% capacity within 1 or 2 years of continuous usage. Macbook design such way that it stops at less than 80% real capacity.

 

Pretty sure Pb is more toxic to humans than Li. Still waiting to see if my Li 12 V fails early like you claim...

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Everything is toxic in any battery. In facts Lead acid battery with 99% recyclable materials, it is way more environmental friendly, excellent network chain in recycling even in 3rd world country. Not many has funding to loose money on recycling Li battery. Recycling business is often more about environmental reason, not profitable. Lead acid battery is both environmentally good and profitable.
We need to get enough physics or chemistry knowledge to accept the reality.

 

Honestly, I got paid from Li battery research and I know exactly what our biggest problem in Li battery. It is indeed really good with high capacity, but much harder to recycle compared to NiMh, and far worse than Lead acid.

Prius used LaNi6 electrode in its NiMh, Lanthanum is pretty abundant although it is part of rare earth family.
It makes the battery very reliable and still profitable for recycling unlike Li battery.

The main problem is Co that now getting so expensive because we get 70% supply Cobalt from warzone Congo. Without Cobalt the cathode is not as good as with Cobalt. We are now trying to make Cobalt free battery by increasing Ni contents but honestly, it is still worse in performance and long term stability.
Back to car Battery, just stay with Lead Acid battery. We also do not need expensive AGM for engine bay installed battery. AGM is meant for inside cabin for passanger safety in case of accident, nothing more than that.
4th gen Prius, corolla hybrid 1.8 do not need AGM but 2.0L Corolla need AGM because it is installed in the trunk like 3rd gen.