The Drone Revolution is here
We need to talk about the BATTERIES $AMPX
Defense and aviation are exploding with unmanned systems, but legacy batteries are a major limiter: short flight times, heavy payloads, slow recharges.
Amprius flips that with silicon-anode tech (vs. old-school graphite), delivering batteries that pack up to 520 watt-hours per kilogram, materially higher energy density per unit weight. That means longer missions, quicker charges (80% in ~6 minutes), and reliable performance from freezing cold (-30°C) to hot (+55°C).
Their cells even pass tough U.S. military and NATO safety tests.
Amprius’ 520 Wh/kg cell was named a 2026 CES Best of Innovation honoree in the Sustainability & Energy Transition category (announced Jan 2026), a major third-party nod to their edge in aviation/defense applications.
Why the timing is right…
Drone demand is surging with defense budgets and electric aircraft tests. Amprius is already shipping to 444 customers since 2023, with 159 in the last quarter alone (80 new, 79 repeats). Revenue is lumpy due to long qualification cycles, but it’s for real.
Aviation (drones, high-altitude platforms) drives ~75% of sales, with the rest from light electric vehicles like scooters.
AeroVironment $AVAV: Deepened partnership; shipped ultra-high-energy cells through a U.S. Army program for drone evaluations (hitting 520 Wh/kg to boost endurance and payload)
Nordic Wing: Qualified their CyCore cells for the Astero surveillance drone; achieved ~90% longer flight time vs. standard cells
ES Aero: Selected CyCore cells for small military drones, citing production readiness, cost, and advanced tech
Upgrade Energy: Partnered with this U.S.-based integrator to launch high-energy-density drone battery packs powered by Amprius tech, expanding accessibility for commercial operators.
Gov angle -
Holding a $12M Defense Innovation Unit contract (including $1.5M follow-on) to expand U.S. production and qualify parts for defense rules (NDAA compliance). They’ve got 5 of 11 battery components compliant already, targeting full by next summer. This supports an NDAA-compliant supply chain and smoother work with DoD/primes. Plus, ~75% sales outside U.S. means they’re exposed globally, even amid shutdown/tariff uncertainty.
Manufacturing edge -
Asset-light model with partners in NDAA-friendly countries. Recently expanded the Korea Battery Alliance (Dec 15, 2025 press release) by adding three new contract manufacturers, pushing total global contract manufacturing capacity beyond 2 GWh — enough for massive scaling while prioritizing NDAA compliance and allied production. Fremont HQ handles pilot runs and defense needs.
Financial snapshot (latest quarter):
Revenue: $21.4M (+173% YoY, +42% QoQ)
Gross margin: 15% (improving on mix)
Backlog: $53.3M
Cash: $73.2M, no debt
Adjusted EBITDA loss narrowing; another ~$10M revenue would flip it positive
Fits my defense basket:
$AMPX as the high-density battery torque for drone/autonomy plays like $AVAV and $TDY, anchored by primes for durability.
Leadership shift:
Founder/CEO retiring end of year; new operational leads with scaling experience stepping up.
Watching:
More repeat orders, gross margin climb on CyCore mix, DIU milestones hitting by summer.
Risks:
Lumpy revenue from defense cycles/qualifications, margin swings on product/customer mix, scaling quality across partners, competition in next-gen batteries.
Own shares. Initial sizing, DCA.
If drones and electric flight keep ramping (they will), $AMPX earns its seat as the energy density leader. This only scratches the surface for $AMPX, analysts like Northland are calling it a 2026 top pick with strong upside from these macro tailwinds and catalysts.
What else are you watching?
