Li9k Max Battery Station

Li9k Max Battery Station


FINANCing availAbLE

Under the Inflation Reduction Act (2022), all energy storage products over 5 kWh qualify for a 30% Federal Tax Credit.

Joule Case is the only scaleable battery system that powers limitless possibilities.

The Li9k Max Battery Station provides provide the highest energy density in the smallest footprint possible. This workhorse is the gold standard to power heavy-duty, mission-critical applications. With high-density Li-NMC cells providing 9,000 watt-hours of energy, this station is designed to be paired with a 3rd-party inverter, and makes a great solution for applications that require a large amount of energy but have limited space considerations.



Voltage, Nominal


Operating Voltage

35.0 - 58.8V



Energy (Nominal)




Cycle Life to 70% initial capacity


Maximum Discharge Rate

100A continuous; 120A for 10 seconds

Maximum Charge Rate



Full suite of voltage, current and temperature protections

Smart system

Pack voltage, cell voltages, current, % remaining

Data bus

Two port RS485, daisy chain-able up to 16

Parallel capability


LED indicators

4 x LED SOC indicator; run, fault LEDs


2.5” LCD

Operating Temperature

-10°C to +60°C

Charging Temperature

-0°C to +50°C


UL1973 (cell), ROHS

Solar charge capable

(with optional solar controller)




130 lbs


17.3 × 22.5 × 7.8 in

Warranty & Returns


Returns notice - For any returns where there are technical issues or breakage, you can return and money will be refunded. If the shipping box has been opened and the product is in working shape, you cannot be refunded due to the nature of this product.

If our customer service team determines that this is a warranty matter, we will have you ship it back to us. You must properly package the product including proof of your purchase date with the product. You must then send the product by mail or courier, with shipping costs paid by you, to Joule Case at 121 E 38th St, Suite 102, Garden City, ID, USA 83714. We will process your return and send your repaired or replacement product to you, at our expense, for warrantied products being shipped to locations in North America. For products purchased or being shipped outside of North America, please contact the local distributor from whom you purchased the product, or email to obtain further distributor information.

Shipping Information


Shipping costs are additional and are based on the size of the order and the destination.

Product Features

No Fumes

Traditional generators produce toxic, harmful fumes that are bad for humans and the environment.

No Noise

Our batteries are silent—no shouting to have a conversation or being drowned out by the constant hum of a generator.


Expandable battery system designed to charge using renewable or on-grid sources.


The stackable design gives you the control to add more power based on your needs.

The power to do anything

Fridge (100W)

90 hrs*

Microwave (1000W)

9 hrs*

Laptop (60W)

150 hrs

50" TV (110W)

81.2 hrs*

*based on average wattage

See why our battery systems are the solution for you


Customer Success Stories

Not sure if Joule Case can handle your power needs? Let us prove you wrong.