lithium battery source/price thread

[JuliaYu]

Originally Posted by BruceS

Not sure how you work that out?
That price is in Australia freight free and in Australian Dollars!!
You tell me what price in Australian Dollars you can offer in MacKay, Qld please or stop being a spammer!!

1. Sorry for my misunderstanding, I thought it was US dollar price. If that price is freight free in Australia dollar, that's not very expensive.
2. The basic price I can offer is USD1/Ah, shipping cost depend on shipiing method and order qty. If big order qty plus shipping by sea, will not add up the final price much. I believe USD1.1/Ah even less is possible.
3. I am just trying to provide another battery source here, no intention to offense anyone.

[newhaul]

Originally Posted by BruceS

Not sure how you work that out?
That price is in Australia freight free and in Australian Dollars!!
You tell me what price in Australian Dollars you can offer in MacKay, Qld please or stop being a spammer!!

that's $1.25 USD so not to bad with pickup

[Pelagic]

The Norwegian Maritime Authority recommends that all shipowners with vessels that have battery installations, carry out a new risk assessment of the dangers connected to possible accumulations of explosive gases during unwanted incidents in the battery systems,” the Norwegian Maritime Authority said in statement. *

https://gcaptain.com/fire-and-gas-ex...power-warning/

[john61ct]

Was not LFP.

The LI chemistries commonly used for propulsion are indeed much too dangerous for amateurs to install for use as House banks, in any small mobile use case, especially boats.

[newhaul]

Originally Posted by john61ct

Was not LFP.

The LI chemistries commonly used for propulsion are indeed much too dangerous for amateurs to install for use as House banks, in any small mobile use case, especially boats.

that is correct corvus energy systems provided LiCoO battery banks for ferry service.
Definitely not a good fit for our house banks .
Sounds like it may have been a failure in the active cooling system . Hope we eventually find out what actually caused the incident.

[sparrowhawk1]

Just thought I'd pass this on https://youtu.be/1zAjE8BCua8
Ruixu sent will prose a high quality battery to test then sold identical looking and rated poor quality ones.

[newhaul]

Originally Posted by sparrowhawk1

Just thought I'd pass this on https://youtu.be/1zAjE8BCua8
Ruixu sent will prose a high quality battery to test then sold identical looking and rated poor quality ones.

yep that's their " drop ins" but he still recommends their bare cells for those of us making our own builds .
Someone forgot the hot glue on the bms connection.

[john61ct]

"Their" bare cells, meaning the supposed Sinopoly ones they resell?

I'm afraid once bit twice shy for me, smells like a scammer best to run not walk away.

[newhaul]

Originally Posted by newhaul

yep that's their " drop ins" but he still recommends their bare cells for those of us making our own builds .
Someone forgot the hot glue on the bms connection.

here is part two of the testing as well as part 3 where ruixu responds to will and his original test video.
https://youtu.be/1zAjE8BCua8

https://youtu.be/E1ZyCfi-U0k
sounds like they are properly addressing the concerns .

[john61ct]

Why? That is super common in this business, in fact the default position to take, need to seek positive evidence of honesty before trusting such suppliers

Seems pretty obvious that's what was going on in the Prowse videos, and as I said, one sniff is all it takes for me to avoid touching them with a ten-foot pole, they just source random BMS and cells from no-name makers and stuff it into a plastic box with no real QA and ship it out.

What you get this month completely different from next month, no consistency, just another roll of the chinese dice. No thanks.

afaic it takes 5-10 years to build a good rep, just a few bad acts and poof, down in the muck with all the rest.

Can happen even to the Trojans of this world, just takes a little longer.

Look what Sears did with Diehard, same with Optima, soon as we found out the OEM was Johnson boom we knew the party's over, they drop the quality factors that cost money, just milking a respected brand name for short term profits, time to look for a better marque.

[newhaul]

Originally Posted by john61ct

Look what Sears did with Diehard, same with Optima, soon as we found out the OEM was Johnson boom we knew the party's over, they drop the quality factors that cost money, just milking a respected brand name for short term profits, time to look for a better marque.

I really don't know about that .
I buy all my Fla direct from dyno .

[john61ct]

great outfit

[sparrowhawk1]

That's the first video where he shows why the battery a fan send to him failed. In the second video he compares it to the battery the company sent to him that has a totally superior BMS that's not sitting in direct contact with the batteries, superior wiring and good connections.

Originally Posted by newhaul

Someone forgot the hot glue on the bms connection.

[sparrowhawk1]

Another Will Prowse video....https://youtu.be/-QZ8NhD7rCk.
tests batteries that appear to be too good to be true but testing shows a match to the specs. Still having a understandable problem to buy from a company that hasn't always been honest.

[sparrowhawk1]

Battleborn drop in 12 volt 100 ah $835. Looks like today only.
https://battlebornbatteries.com/shop...stock-battery/