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Scalable LFP power.

Aries™ LFP

Aries I lithium iron phosphate battery pack

Aries LFP • 79 kWh

Lithium iron phosphate (LFP) chemisty

Aries LFP • 62 kWh

Lithium iron phosphate (LFP) chemisty

Voltage
Peak Power
Cycle Life
Volume
Volume Cell-to-Pack
VED
Mass
Dimensions

348 V
120 kW
3,000 Cycles
285 L
76%
287 Wh/L
550 kg
1,730 x 766 x 229 mm

270 V
93 kW
3,000 Cycles
227 L
74%
273 Wh/L
437 kg
1,399 x 766 x 229 mm

Download Aries LFP Spec Sheet

Download Aries LFP CAD Files

Aries I lithium iron phosphate battery pack close up

Perfect for class 3-6 trucks.

Aries LFP delivers 150 miles of range on a single charge without nickel and cobalt. Using lithium iron phosphate (LFP) chemistry and innovative design, Aries LFP offers procurement managers compact power that is safe, durable and scalable. It delivers 3,000 cycles and allows daily charging up to 100% without degradation. And Aries LFP is built with abundant raw materials, so global supply issues are unlikely to slow production.

Safer chemistry. Extreme safety testing.

Our safer LFP chemistry massively reduces the risk of thermal runaway. We also perform industry standard SAE, ISO and UN validation testing. Then we go further. We test the full pack, the subsystems and every single component against our own standards to push the battery to its limits.

Watch video

Safety validation testing.

SAE J1798 Electrical Performance

SAE J2380 Structural Performance Testing

ISO 16750 and IEC 60068 Environmental Performance Testing

SAE J2464 Abuse Testing

IEC 60529 Intrusion Testing

SAE J2721 Corrosion Resistance Testing

SAE J2288 Lifetime Durability Testing

Certification for shipping per UN 38.3

EMC conformance to FMC1278

Already in production.

Aries LFP is produced in Michigan for ONE by Piston Automotive on a dedicated product line.

Aries I lithium iron phosphate battery assembly line at Piston Automotive

Piston Line

Piston Automotive lithium iron phosphate battery production line

Piston Line

ONE electric battery on production line at Piston Automotive facility

Piston Line Closeup

Let’s talk about your system needs.

Our 62 kWh and 79 kWh packs can be combined in many ways and configured to deliver the performance your system needs. Aries LFP provides 62 kWh to 316 kWh and beyond, and it delivers nominal voltage ranging from 270 volts to 696 volts.

With Aries LFP, you can configure packs in series and parallel. You can even connect 62 kWh and 79 kWh packs to each other. Aries LFP is crossbar-friendly and mounts easily in your chassis. So Aries LFP is ready for your truck, bus, boat, grid or any application requiring durable, safe energy. In fact, our Aries Grid energy storage system uses a combination of Aries LFP 79 kWh packs.

Simply scalable.
Scalable architecture allows for series and parallel configurations. So Aries LFP can power a wide range of applications, from trucks and boats to homes and grids.

More miles, less space.

Our LFP chemistry makes it possible to have larger cells while taking advantage of structural housings for load transfer. With more range and greater efficiency, Aries LFP unlocks thousands of new routes for emission-free fleets.

287 Wh/L

79 kWh

Video of inside view of Aries I battery pack

Sustainable supply.

Nickel and cobalt are expensive, and prices can fluctuate wildly. Aries LFP uses lithium iron phosphate chemistry, so it’s safer, lower in cost and made from more abundant materials like iron.