100 a/h Lithium Battery for $21?

pianotuna wrote:
BurbMan,

Write them and ask the parameters of the battery management system.

Here is a link to a pdf from them.

himaxelectronics.com/wp-content/uploads/2021/04/HiMASSi-Battery-Manual.pdf

I remember the learning curve when we built our lifepo4 pack. Assembling it was relatively easy. Fine-tuning, programming, calibrating the BMS much more difficult. One wrong setting has the potential to permanently damage all the cells.

The "best" BMS settings are always a hotly debated item on any battery/solar forum. On top of that, one discovers the best settings are worthless if the BMS doesn't implement them properly. There's the settings/parameters on paper, then there's the realworld. That's what makes Will Prowse so popular. He has the resources to test so many of these things. Sometimes they meet specs/parameters, sometimes they don't. Nice to find out on a YT video, rather than first-hand.

I feel for the OP, or anybody in the early stages of transitioning to lifepo4. It's a bit of a learning curve. So many options. A number of things to consider.

otrfun,

I'll never have Li unless it is Li titinate, which I can not afford.

NOT a real costco website. Beware Scam

Four pages in??…Would even make P.T. Barnum envious…I suppose a sign of the times - lol

3 tons

lem55 wrote:
NOT a real costco website.

Bingo.
Gotta love the Costco corporate contact info:
******************************************************
Contact us

If you have any questions or concerns, please do not hesitate to contact us.

We would love to hear from you, contact us on:

Email:undeodwehnclaynad@gmail.com
*****************************************************

Not a newbie at all, they set the prices so low so people will be less inclined to pursue getting their money returned. The hope is people will just write it off, and not bother. There was never any intention to ship anything, so any money they don't have to give back is gravy.