After 1 year or so I've got the first battery 14s20p prepared (prepared, not finished yet!). Very long job, last year I made the cell selection and had panels and inverter ready.

Cell buckets after 1yr
Cell are divided in buckets, from 2000 to 2300mAh (buckets: 2000-2099, 2100-2199, 2200-2299) and grouped by IR, from 20 to 60 (buckets: 20-39, 40-49, 50-59, 60...

I bought this new and never used it for my project. Powered it on twice just to check that it worked. Includes the RS-485 adapter.

Open to reasonable offers, but hoping for $70 CAD + actual shipping costs. Local pickup available in Montreal, Canada.

Does anyone know a way to talk to these? If not any idea what kind of connection this is? These are the ones battery hookup had a few weeks ago.
Thanks,
Will

[EN]
"They brought me this battery pack, and upon exit, the value is just 8.2 V. The battery pack, along with 8 others, have been without a charge for 4 years, so they have dropped below the minimum threshold. Since there are 16 cells in series, it is assumed that each one is at about 0.5 V. I told the customer that it is dangerous because chemical causes can cause s...

Has anyone got a Lantrun inverter and would like tolend me the WIFI for a few days so I can program mine. I can't find one to buy anywhere.