These are steel cased packs containing 444 Tesla/Panasonic 18650 cells.They are in a 6s74p configuration so the true nominal voltage is actually 21.6v.

We are guaranteeing each pack for a capacity of at least 180Ah (~3.9kWh). 

These packs are made for rack-mounting(4U) but can also just be stacked without issue.

They do have an internal BMS, however I have not found a way to communicate with it. From searching on the internet it looks like there is a DIY hack using an Arduiono and CAN commands that is available on GitHub, at some point if I have more free time I might see if I can get the interfacing set up and post more info.

If you are interested in buying 2 or more feel free to contact us for a free LTL quote, depending on the amount that you wish to buy and your location it can be significantly cheaper than Ground shipping.

Usage:

Max Charge Voltage: 25.2v
Nominal Voltage: 21.6v
Max Discharge Voltage: 19.8v

For longevity we recommend running the packs between 21v and 24.6v.
While running in that more narrow range each pack should still yield 135+ Ah(~2.9kWh). 

Physical specs:

Weight: 85lbs

Length: 29.5" (31" including the coolant nozzles)
Width: 13.5"
Height: 4"