King-Pawn Smart LiFePO4 Battery (12V-48V; 310Ah-1240Ah; 8-64kWh)

From: $5,400.00


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Built in Canada and providing from 8kWh – 64kWh of power. Our King-Pawn battery system is truly one of a kind. Providing the ability to have one brain (Smart BMS) control essentially unlimited amounts of power. These batteries are 100% customized to order, please contact before placing an order for more accurate quotes on additional features and dealer/bulk pricing.

With our King-Pawn system there is only one Bluetooth device to connect into, making it possible to see all cells of the battery which are in separate more portable units. Each King-Pawn battery consists of four 3.2V 310Ah cells per unit (4kWh). Final voltage and capacity determine how many units are required for each battery. For example, a 24V 620Ah battery requires 4 units. Within this example there would be one King unit with the smart Bluetooth BMS and 3 Pawn units that connect to the King via communication connection. Besides for the communication connection between units, just wire up units in series and parallel as required.


Using multiples of four, our high capacity 3.2V 310Ah prismatic cells translates into more reliability; less parts, less issues. Our cells are designed to use full depth of discharge giving maximum capacity when required. You always have the option (through Bluetooth) to change the charging and discharging parameters to a 20%-90% cycle to extend the lifetime of the battery. Compared to lead acid, lithium offers more that 2x more power per rated Ah as well as consistent voltage.

Cycle Life

If you use a full cycle daily, it will be 8-13.5 years until you realize a 20% capacity loss. This means per 310Ah, after 3000 – 5000 cycles you would still have up to 248Ah of usable power. The battery can easily have a useful life of more than 10,000 cycles/25 years in most applications. This is the only battery you will need, which is why we include our 10-year warranty, but do expect it to run much longer.

Smart BMS

Lithium batteries require a battery management system (BMS) to ensure proper voltage and temperature cut-offs. Above all else, with our smart Bluetooth BMS you can set parameters of charging and discharging, monitor real time usage, see available power left, and turn on and off all from your phone. At any time, you will know how much power you’re discharging or charging and how much you have left. The BMS also tracks how many cycles you have used. The BMS has automatic high/low temp and voltage cut-offs to maximize your battery life. We use quality Daly BMS for our King-Pawn system.


LiFePO4 chemistry cannot be charged in 0 °C or discharged in -20 °C which is why our BMS disable these functions when low temperatures are detected. Depending on your battery location and climate, you may require your battery to work in colder weather. Our batteries can come with built-in automatic heating in each unit. The optional heater can keep the battery temperature above 0 °C to allow all functions to work in any weather. The heater uses very little power to keep everything warm.

Amp Rates

Our smart BMS is rated to output 150A continuous with a 300a peak (3 seconds) and charging up to 150A continuously. Please gauge your wiring accordingly to account for your expected loads.


The most important thing to all our batteries is safety. LiFePO4 is one of the safest lithium chemistries and will not catch on fire like other li-ion batteries. There is no venting or required maintenance with these batteries. Storage losses are under 3% per month so you can leave the battery dormant for long periods without issues.


There is no lighter or smaller battery per kWh. Our batteries are made using the smallest size case possible and to be portable with multiple units vs one heavy unit. This battery can be oriented however you need to fit in your battery space. On these batteries we use a very durable plastic ABS case.


There is no parallel or series connections possible outside of the preconfigured unit requirements. These batteries are built and customized to specified voltage and capacity. All units of a King-Pawn battery must be connected to work and cannot be used in any other configuration. If you are looking for something to be upgraded in the future or with more voltage versatility, our Tiny 12V is capable of series and parallel. We also offer the Power N Go which offers even more portable features. If you require more capacity, voltage, or anything else please contact us directly as we can do anything for your project!


King-Pawn 12V Spec Sheet  |  King-Pawn 24V Spec Sheet  |  King-Pawn 36V Spec Sheet  |  King-Pawn 48V Spec Sheet

King-Pawn Brochure

The King Pawn System Features

Weight25 kg
Dimensions37 × 19 × 27 cm

12V, 24V, 36V, 48V

Capacity (Ah)

310Ah, 620Ah, 930Ah, 1240Ah

Automatic Built-in Heating

Yes, No