Advanced battery platform built for a new generation of electrification.
Magnus is Estes' patented, scalable battery platform built around MgCarbonit, Estes' proprietary magnesium alloy, using domestically sourced, commercial grade lithium-ion cells. Over 80% gravimetric cell-to-pack efficiency, with a safety profile and TCO economics that hold up in commercial duty cycles.
Our Product
The Magnus platform
Magnus is a fully scalable battery platform offered in all major voltage classes up to 1000 VDC. Available in up to three sizes: Magnus I, II, & III.
Magnus
LV
Low voltage auxiliary systems
48V / 100V
9 kWh
Magnus
Highway, commercial, marine
400V / 800V
69 kWh
Magnus
+
Rail, Class 8 truck
500V / 1000V
78 kWh
Fully Scalable
FUNCTIONAL SAFETY
ISO 26262 up to ASIL D
CYBERSECURITY
ISO 21434
COMMUNICATIONS
SAE J1939
DURABILITY
3000+ cycles
THERMAL MANAGEMENT
WEG 50/50
CHARGE TIME
80% recovery ‹ 45 min
Heavy-Industrial Class: 1200V / 1500V
At up to 1500V and 200+ kWh per single string, Magnus III is the building block for megawatt-hour class systems where weight, space, and uptime are non-negotiable.
Domestic from the ground up.
Estes is designing its supply chain architecture to meet Buy America/Build America requirements, Department of War non-FEOC mandates, for maximum commercial supply chain resiliency. We design here. We source here. We build here.
What makes the Magnus™ battery platform different from conventional pack architectures?
Magnus uses the same US-sourced, commercially available nickel-chemistry lithium-ion cells as conventional battery systems. The difference is everything built around them. Conventional designs spend roughly half their total weight on non-energy-storing components. Magnus eliminates that mass through a thermo-structural body manufactured from MgCarbonit™, Estes' proprietary magnesium alloy, delivering 225 Wh/kg compared to the crowded field of conventional systems at 170 to 190 Wh/kg (assuming cell equivalency). Same battery cell, radically different system.
What is the Magnus product family?
Is Magnus suitable for Class 8 truck applications?
What is on the Magnus product roadmap?
What are the first industry segments adopting the Magnus™ platform?
