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Engineered from one cell.

Most storage companies assemble parts they buy. AEGIS controls the entire stack — from the chemistry of a single LiFePO4 cell to the firmware reading it every few seconds. This is how the system works, and why it hasn't failed.

AEGIS Energy Systems · San Diego, CA · Reference Rev G · Updated June 2026
01 — The building block

One cell, sixteen to a pack, packs to a string.

Every AEGIS system — a 48 kWh home cabinet or a 6.4 MWh container — is built from the same unit: a single audited LiFePO4 prismatic cell, 3.2 volts nominal, 314 amp-hours. Sixteen of those in series make one pack, the 48-volt primary at 51.2 volts nominal. Stack packs in series and the voltage climbs into the hundreds; each pack carries its own BMS reporting to a master BMS that balances the whole string.

Because the architecture is modular, capacity and voltage are just a function of how many packs are present — and every one is a part AEGIS built and can account for, down to the cell. Disconnects, conductors and surge protection are rated to the full-charge ceiling of the build, never the nominal figure.

BuildSeriesNominalFull chargeClass / use
Single cell1S3.2 V3.65 VReference unit
Pack — 48 V primary16S51.2 V58.4 VShield 3.0 base · pack BMS
Shield 4.0 string45S144 V164.25 VCommercial EV Ready
HV setup — 6 modules96S307.2 V350.4 VVoltage increment
HV string — 12 modules192S614.4 V700.8 VMax whole-module build
HV ceiling (raw-cell)220S704 V803 V803 V max per inverter

LiFePO4 cell limits: 3.2 V nominal · 3.65 V full charge · 2.5 V cutoff. Module setups build in 6-pack increments; the whole-module ceiling is 192S (700.8 V), capped at 803 V per inverter.

02 — Vertical integration

Every variable, controlled in-house.

AEGIS audits its cells, designs its own battery-management system, writes its own firmware, fabricates its 5052-H32 aluminum enclosures, and builds the Command Center software that watches it all — under one roof in San Diego. Nothing critical is a black box sourced from a vendor who can change it without telling you.

Since the platform's 2023 introduction: zero field failures.

That control is the reason AEGIS can stand behind a 25-year warranty and a 16,000-cycle rating. It is also the reason the company exists: AEGIS was founded in 2022 after counterfeit cells flooded the market, absorbing roughly $3M to replace every affected unit and resolving never to ship a cell it couldn't vouch for.

Field failures since 2023
Zero
Warranty
25 yr
Cycle life @ 80% DoD
16,000+
Built
In-house
03 — Safety

Safe by chemistry, then by design.

AEGIS uses LiFePO4 (LFP) chemistry for one decisive reason: thermal stability. LFP cells have a thermal-runaway onset near 251 °C — materially higher than the nickel-based chemistries common in consumer storage — so the failure mode that worries homeowners and fire marshals is far less likely to begin in the first place.

On top of the chemistry sits a four-layer fire-protection architecture, the 5052-H32 aluminum enclosure, and cell-level monitoring. The systems are independently listed to UL 1973, UL 9540 and UL 9540A — covering battery systems, complete energy-storage systems, and large-scale fire-propagation testing — with UL 9540B in process and a CEC Solar Equipment List pathway underway.

04 — The Command Center

The fastest, most secure monitoring we could build.

Every AEGIS Shield ships with an AEGIS Brain: a dedicated on-site edge gateway that reads every inverter register, every BMS cell, and every temperature sensor every 5 to 25 seconds, then streams it to the cloud under encryption. You see state of charge, load, solar, export and per-cell health in near real time — and so does AEGIS, which means problems are visible before they become failures.

For government and defense deployments, the monitoring stack is built around NIST SP 800-171-aligned controls, with the same cell-level visibility extended to containerized microgrids.

05 — Power conversion & the system line

One architecture, residential to industrial.

The same cell-to-string platform scales across the entire product line. Residential Shield systems run at the 48-volt primary on Sol-Ark split-phase inverters; high-voltage commercial and industrial systems run on Sol-Ark 30K or 60K inverters from a shared HV pool, matched to site service. Off-grid and mobile systems stack 60K inverters for hundreds of kilowatts of three-phase output.

SystemBattery configurationDC voltageInverter — AC output
Shield 3.01–3 × 16S pack51.2 VSol-Ark 8K–18K · 120/240 V split-phase
Shield 3.0 Tower6 × 16S parallel (96 kWh)51.2 VSol-Ark 8K–18K · 120/240 V split-phase
Shield 4.0 EV Ready2 × 45S (96 kWh) + 30 kW EV144 VSol-Ark 30K / 60K · HV-class
Shield 6.0220S string (Power Container)704 VSol-Ark 30K / 60K · HV-class
Power Container29 × 220S (~6.4 MWh)704 V7 × Sol-Ark 60K · 480 V 3φ · 420 kW
MWPU TrailerHV bank ~150–200 kWh~700 V3 × Sol-Ark 60K · 480 V 3φ · 180 kW

Inverter pairing is strict by class: residential 48 V systems use Sol-Ark 8K–18K split-phase; HV-class systems use Sol-Ark 30K (120/208 V 3φ) or 60K (277/480 V 3φ), interchangeable per site service. Distinct configurations never share specifications.

06 — Defense-grade

From the garage to the base.

AEGIS carries the same zero-failure discipline into government and defense work: containerized 40-ft microgrids, configurations designed to MIL-STD-810 and DO-160 qualification, NIST SP 800-171-aligned SCADA, and a path through CEC listing and federal registration. The thesis is energy assurance — power for the bases and infrastructure that simply cannot go dark.

MIL-STD-810 / DO-160 referenced as designed-to qualification targets; certification status as stated per program.

Own the system. Monitor every cell.

Explore the Shield line, model your savings, and see what cutting the grid — and the gas station — looks like for you.

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AEGISAEGIS

American Energy Guardian Infrastructure Security — Engineered Storage Systems. American-engineered LiFePO4 storage, microgrids, and home EV charging for residential, commercial, and defense deployment.

(877) 99-AEGIS · info@aegisess.com
8070 Arjons Dr, San Diego, CA 92126

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© 2026 AEGIS Energy Systems. American-engineered · U.S.-assembled. Defend Your Power.
Specifications and timelines are subject to change. Product certifications as listed; UL 9540B in process. MIL-STD-810 / DO-160 referenced as designed-to targets except where stated as certified.
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