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Battery Modules


Capacity (ideal)5.2 kWh (233 Ah)
Module Energy Density198 Wh/kg
Discharge Current (max, 3s)1,520 A (~6.5C)
Discharge Current (10s)1,000 A (~4.3C)
Discharge Current (continuous)233 A (~1C)
Discharge Power (max, 3s)30 kW
Discharge Power (continous)5 kW
Charge Power (max, 10m)8 kW
Charge Power (continous)5 kW
Cell Configuration6 series of 74 parallel (6s74p)
444 cells
Weight58 lbs (26.3 kg)
Dimensions (approximate)27 x 12 x 3"
Voltage (nominal)22.2 V
Voltage (max)25.2 V
Voltage (minimum)18 V
Cell typeTesla Custom Panasonic 18650
(similar to NCR18650B)
Cooling5/16" tubing (8mm)
Required when (dis)charge >= 1C
Coolant flow0.25 gal/min max
Coolant pressure2 psi max (per module)
Max operating Temp60C / 140F
Min operating Temp-18C / 0F
Min Temp. (charging)4C / 41F
(Charge rate should be limited at low temperatures)
TerminalsM8 bolts (13mm, included)
* NOTE: Actual battery capacity specifications may vary in real-world conditions and are listed here as a base reference for a new module and are for comparison purposes only. While we strive to sell the best possible battery modules, the Tesla battery modules we acquire are used and actual capacities are not guaranteed. They may vary based on the actual age, usage patterns, cycles, etc.

It is up to you to use these battery modules in a safe manner within their specifications. We explicitly disclaim any and all liability related to the use of these battery modules.


$1389 + shipping

Significant discounts available for purchases of two or more modules
US Customers: Get a quick quote with shipping!
Or contact Us for details!


This product is currently in-stock and available for immediate shipment for some quantities. Subject to change. Contact us for details.
US Customers: Get a quick quote with shipping!

Orders are processed in the order payments are received.
Contact us with any questions about this product or its availability.

Purchase Options

Shipping and discounts vary based on destination location and quantity.
Please contact us to purchase this product!

Note: Pricing is per module. Full battery pack and multi-module images shown above for illustrative purposes only.


Tesla Lithium Ion Batteries

Tesla battery modules are an excellent choice for many different projects, such as EV conversions, backup power, solar power storage, RV power, off-grid setups, and more.

The energy density of the Tesla battery modules are unmatched. The most popular, the 85-type, has an energy density of nearly 200Wh/kg! To see just how much space these modules can save compared to other types of batteries, check out 057 Technology founder's massive off-grid solar setup.

  • (1) Tesla battery module (Tested and working)
  • (2) M8 13mm terminal bolts with integrated washers
  • (2) Plastic protective covers (both top and bottom)
  • (2) Protective terminal covers
  • (2) Coolant line caps
  • Option of shipping with Tesla BMB or 057 Tech BMB->XH converter board (see below)

What else do you have for these?

Glad you asked! We offer all customers who purchase Tesla battery modules from us the option to have us swap out the proprietary Tesla cell sense board with our own custom converter board. Free of charge. This way you can easily use these modules with nearly any lithium ion balancing charger or BMS without having to deal with modifying the wiring to sense each cell.

(Meter shown is not included. Our MiniBMS is available as an addon with purchase.)

Don't settle for modified modules with butchered sense wires. Let us do the work the right way with our custom converter boards that breakout the large module into a single 6s XH balancing connector.

Just let us know if you would like this option when ordering. If you're unsure, contact us and we'll help you decide if this is the right option for you.

Why else should I buy these here?

We have extensive experience with these battery modules. Our founder is well known in the Tesla communities and was the first to put these modules to use outside of a Tesla vehicle in his huge 44kW off-grid home solar project. We properly and safely extract them from Tesla vehicle battery packs, test them, and package them properly for shipping or pickup. When you purchase these from us you can be assured your purchase will reach you safely and quickly.

Every module is fully tested using our in-house equipment, and modules that do not meet our standards are simply not sold. This way our customers are always getting the highest quality battery modules available.

These modules are also generally in-stock and can be shipped within one business day, unless otherwise specified. Some other vendors selling these modules claim to stock them, but instead will make you wait weeks or months to receive your order while they use your money to acquire them in the first place. Don't fall into that trap! While we do accept orders for these modules when we are out of stock and expecting more soon, we make this very clear before you order. We're not going to accept your order and then just wait for you to wonder where your purchase is weeks later.

Some of our customers have come to us after a bad experience trying to source these modules elsewhere (eBay and the like). Sellers with shady tactics (including like explained above), combined with improper packaging, shipping without sufficient insurance, and many other pitfalls when dealing with other vendors.

Suffice it to say, we have sold thousands of these modules to-date without any issues. Buy with confidence from a knowledgeable and trusted source!

Parts shown are used/recycled components unless otherwise specified.
Unless otherwise specified, used parts are non-returnable and non-refundable.
Parts are sold without as-is without any warranty or guarantees. Be sure you are ordering the correct part for your application.