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/ Our high-density batteries

Custom battery packs

Our custom packs, with industry-leading energy density up to 450 Wh/kg. Every design is engineered around your platform’s space, power and weight limits and taken from prototype to series production.

Key advantages:

  • Shaped to your platform
  • Up to 450 Wh/kg
  • From prototype to series production

Download specs

Explore custom packs
Placeholder photo with a bunch of battery packs.

/ use cases

When is a custom battery pack the right fit?

Some platforms need more than a ready-made configuration can offer. Our custom packs are engineered around specific space, weight, power and integration requirements to get the perfect balance of performance and fit.

Selected for your platform

Designed for unique platform needs

Designed for platforms with specific dimensions, weight distribution or mechanical requirements.

Performance-critical missions

Optimize the battery around endurance, range, payload or demanding power requirements.

Deep system integration

Engineer interfaces, power delivery and communication around the complete vehicle architecture.

Field-proven at scale

See how we engineered a battery solution around a specific platform and mission requirement.

View our cases

/ configuration options

Choose the right foundation for your custom battery pack

Every custom pack starts with your platform’s requirements. Our engineers select the cell chemistry and design the pack architecture around them, balancing energy density, power output and dimensions.

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    Power output

    Built for the current your platform draws, including its peak loads.

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    Form factor

    Hardcase or heatshrink, shaped to your battery bay to make the most of the available space.

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    Cycle life

    Chemistry and configuration chosen for how often your platform flies and charges.

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    Durability

    Tested to UN 38.3, including vibration, shock and temperature cycling.

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    Energy density

    Up to 450 Wh/kg at pack level, for more energy in the same space and weight.

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    Materials

    Aerospace-grade, lightweight materials, chosen to keep pack weight down.

/ ordering & delivery

Supply that scales with your program

We match your production schedule, from first order to full-scale.

Minimum quantity

Per order
From €50,000

Lead times

Sample
Ask our team
Production
Around your schedule

/ How to work with us

Your path to more flight time

Five steps from your requirements to series production.

  1. Discovery call

    Book a short discovery call with our technical sales team. Tell us about your platform, what’s holding it back, and your volumes and timeline.

    Book a call

  2. Get a quote

    We map your options and send a quote with full specifications and pricing.

  3. We design and build your pack

    Our engineers select the cells and design the pack architecture around your platform’s space, power and weight limits, then build your prototype.

  4. We prove every pack

    Every pack is tested for voltage, internal resistance and capacity. Then you test it on your platform.

  5. Into series production

    Once your prototype is approved, we take your pack into series production and ship it with its compliance documentation. Our team stays on after delivery.

/ development process

Partners in battery engineering

From day one, our engineers work as part of your team. You get their knowledge of cell chemistry, pack design and integration, applied to your platform and your mission.

Tulip employee behind computer

  • Direct engineer access

    Work directly with our engineers

    Your team works closely with our battery engineers throughout development, helping technical questions get answered fast and with fewer handovers.

  • Shared requirements

    Stay aligned throughout the process

    We review electrical, mechanical, thermal and mission requirements together, so your pack is designed for the whole platform.

  • Collaboration

    Collaborate at every step

    Close communication makes it easier to review trade-offs, adjust designs and respond to new requirements as the platform evolves.

/ FAQ

Questions about our battery packs?

  • Are your battery packs UN38.3 tested?

    Pending customer verification

    Packs released as Tulip Standard are UN38.3 tested and ship with a test summary. For custom packs we complete testing before the first series delivery; prototype batches may ship under a transport exemption.

  • Which other standards do you design to?

    Pending customer verification

    [IEC 62133-2, UL, MIL-STD-810 environmental].

  • Are your products export-controlled?

    Pending customer verification

    Standard packs: [no licence required within the EU]. Packs for defence programmes are assessed per project and we advise on the classification.

  • Which charger do I need?

    Pending customer verification

    Any balance charger matching the pack chemistry, a maximum cell voltage of [x.xx] V and a maximum current of [x] C. Smart packs report their limits to a compatible charger. VARIES BY CHEMISTRY.

  • Can you deliver a European supply chain?

    Pending customer verification

    For [selected] packs, yes. Tell us the requirement and we state what is possible per cell.

See all questions & answers

/ technical documentation

Get the tech specs

  • Pack density and energy data
  • Voltage, capacity and discharge ratings
  • Weight, dimensions and operating temperature

Download specs

Tulip's Custom Battery Pack tech specs Light