Are these cheap lithiums ok to use??

[admiralslater]

Originally Posted by anotherview

Not sure what you need. I am simply relying what I feel I gained for others knowledge. Your best source is ReLION or an authorized distributor.

Should have been more specific
Did you have to change your alternator regulator ie external balmar etc.
I assume you have fully programable solar regulator and battery charger .
Other than the set up of the charge parameters , did you feel it was a drop in system

[hikersailor]

Roland Stockham you are incorrect as there are many reasons why LiFePo4 batteries are superior to fla batteries and even agm's. Read Marine How To expose on the subject for a more informed discussion by someone who knows what he is discussing and backs it up with extensive testing to prove what he stipulates. I have lithiums on my boat and could not be more pleased. If you plug in the cost and extrapolate over the lithium life it is as or less cost than fla, safer not to mention other benefits like way less weight and space.

[Boatsie]

Here's an article from last 2 years.

Glad they're stabilized now.
Reads about explosive, instability in water.

Slight loss, greater stability ; new chemistry versus older chemistry.

https://www.abc.net.au/news/science/...eality/8869748

[dancor01]

Cheap in batteries = waste of time and $


Did the mistake to get one of those $120 Advance auto part deep cycle.
After it was replaced 4 times during the 1 year warranty. It is still crap.
You withdraw 10 amps out of it. it is below 12v, 11.9 actually
Withdraw 25 amps. it's below 10v.


One battery It can happen. Just a very bad one. 4 of them? Nope.


All in all The amount of my time I waisted on that battery isn't worth the saving. And still have to replace it.


Warranty of 1 year on a battery = Stay FAR away from it.

[newhaul]

Originally Posted by dancor01

Cheap in batteries = waste of time and $


Did the mistake to get one of those $120 Advance auto part deep cycle.
After it was replaced 4 times during the 1 year warranty. It is still crap.
You withdraw 10 amps out of it. it is below 12v, 11.9 actually
Withdraw 25 amps. it's below 10v.


One battery It can happen. Just a very bad one. 4 of them? Nope.


All in all The amount of my time I waisted on that battery isn't worth the saving. And still have to replace it.


Warranty of 1 year on a battery = Stay FAR away from it.

deep cycle 12 volt battery from auto parts house isn't a deep cycle battery.

[newhaul]

Originally Posted by Boatsie

Here's an article from last 2 years.

Glad they're stabilized now.
Reads about explosive, instability in water.

Slight loss, greater stability ; new chemistry versus older chemistry.

https://www.abc.net.au/news/science/...eality/8869748

we are discussing a totally different chemistry of lithium battery lifepo4 not licoO2.

[dancor01]

Originally Posted by newhaul

deep cycle 12 volt battery from auto parts house isn't a deep cycle battery.

This where it is wrong. The label say deep cycle.
Advertising a product under false pretending Is A FRAUD


Not only those Advance auto part battery claim they have a 220 amps capacity. They don't even give you 30 amps. Another FRAUD

[hellosailor]

boatsie-
"Glad they're stabilized now.
Reads about explosive, instability in water"
Don't believe everything you read. Especially if it is just on the internet and not in your native language. No batteries are famed for exploding in water. But common flooded lead acid batteries will generate gobs of free chlorine, rip your lungs out, and kill you if seawater gets into them. Oh, did the article forget to mention that one?

dancor-
AutoZone batteries tend to be made by contract with JSI, possibly the largest battery maker in the US. The contract specs will be whatever AZ has set them to be--but JSI typically does not get involved in junk. What you may be saying is simply the difference between a battery that was rated, as per the industry standards, at a 20-hour discharge rate, versus a much higher rate that you used. Since you don't mention the rates...Who knows?
As for the term "deep cycle" that's pretty vague and undefined. An SLI battery is designed for a maximum 10% discharge, so anything designed for a 30%-50% discharge would legitimately be "deep cycle" compared to an SLI battery. Then you get into batteries that are designed for even deeper discharge rates, but they're usually considered to be "traction batteries" used in fork lifts and golf carts, not just "deep cycle". The devil is in the details.

[newhaul]

Originally Posted by dancor01

This where it is wrong. The label say deep cycle.
Advertising a product under false pretending Is A FRAUD


Not only those Advance auto part battery claim they have a 220 amps capacity. They don't even give you 30 amps. Another FRAUD

more likely the battery says dual purpose deep cycle. Not a true deep cycle. That 220 amp number likely followed by RC . Reserve capacity .( not deep cycle )
https://marinehowto.com/what-is-a-deep-cycle-battery/
These should help you

[dancor01]

Originally Posted by hellosailor

boatsie-
"Glad they're stabilized now.
Reads about explosive, instability in water"
Don't believe everything you read. Especially if it is just on the internet and not in your native language. No batteries are famed for exploding in water. But common flooded lead acid batteries will generate gobs of free chlorine, rip your lungs out, and kill you if seawater gets into them. Oh, did the article forget to mention that one?

dancor-
AutoZone batteries tend to be made by contract with JSI, possibly the largest battery maker in the US. The contract specs will be whatever AZ has set them to be--but JSI typically does not get involved in junk. What you may be saying is simply the difference between a battery that was rated, as per the industry standards, at a 20-hour discharge rate, versus a much higher rate that you used. Since you don't mention the rates...Who knows?
As for the term "deep cycle" that's pretty vague and undefined. An SLI battery is designed for a maximum 10% discharge, so anything designed for a 30%-50% discharge would legitimately be "deep cycle" compared to an SLI battery. Then you get into batteries that are designed for even deeper discharge rates, but they're usually considered to be "traction batteries" used in fork lifts and golf carts, not just "deep cycle". The devil is in the details.

Never did mention AZ


The label say. 100 mins at 20 A
The reality. is far from the specs.


And yes Lead/acid batteries and salt water. Not a good combo

[newhaul]

Originally Posted by dancor01

Never did mention AZ


The label say. 100 mins at 20 A
The reality. is far from the specs.


And yes Lead/acid batteries and salt water. Not a good combo

AZ = auto zone. And you are correct you said advanced auto.
that is reserve capacity for cranking . Not a rating of ah at the 20 hour rate

[dancor01]

Originally Posted by newhaul

AZ = auto zone. And you are correct you said advanced auto.
that is reserve capacity for cranking . Not a rating of ah at the 20 hour rate

All it says is reserve capacity 210

[newhaul]

Originally Posted by dancor01

All it says is reserve capacity 210

that is a starting battery not deep cycling
A deep cycle will say !!!!ah at 20 hour rate. On the label
Sounds like you got ripped off

[dancor01]

Originally Posted by newhaul

that is a starting battery not deep cycling
A deep cycle will say !!!!ah at 20 hour rate. On the label
Sounds like you got ripped off

That is what I have been saying all along.
The label does say Deep Cycle Marine/ RV Pro.


And that is also why I'm saying Advance Auto parts batteries stay the F away from those

[guitarrich]

“Drop in” they are not. I’ve had massive issues with a Victron LifePo bank on a new build. The “service” alternator kept burning out. The so called intelligent regulator didn’t limit charging for reasons I never ascertained, but the big thing to bear in mind is that a Lithium battery has a flat charge curve. It will suck and suck at max Amps until full, causing normal alternators to simply burn out. Had to lash up a bodge whereby bowthruster agms are charged by a greatly limited alternator, and this circuit feeds a pair of buck boost dc/dc converters which trickle juice to the mighty LifePos. Bespoke Victron chargers do the ac charging via shore or generator power.
No doubt this new battery technology is vastly superior, but needs VERY careful management. I know another new build where the lithium bank literally melted down due to engineer ignorance.