New 4s Sunwoda 14.68v 150ah 2.2kWh Lithium Ion - $50/kWh

Just $110 for brand new 14.68v 150ah 2.2kWh batteries. Crazy deal on these. Every battery is factory tested and perfectly balanced. Excellent energy density.

You can easily add a 4s Lithium Ion BMS or series these into higher voltages. The lids just pops right off if you use a flat screw driver. Super easy access to the busbars and balance lead connections.

The batteries are also light enough to ship ground instead of freight which is a huge bonus. They are 4s lithium ion with a 3.67 nominal voltage per cell and 150ah. These are EV grade 2000 cycle rated cells.

Module Fully charged 16.8v (4.2v per cell)
Module Fully Discharged 11.2v (2.8v per cell)
Main +/- bolt size: M6 x 1.0
Max Continuous Charge Rate - 150a
Max Continuous Discharge Rate - 150a
Pulse Discharge Rate (10 seconds) - 450a
Weight 26 lbs
Dimensions: 14" x 6" x 4.5"

Wiring harnesses are not include but you have easy access to the connections of the cells. There is already nickel tabs and soldered connections. Super easy to use a cheap soldering iron to connect your BMS balance leads on the existing beads of solder. Or crimp connections to the nickel tabs.