PowerPacks- Bare or Smart?
Discover Density X-Series
Up to double the capacity with our longest cycle life for price conscious projects
Choose when you want to balance the priority of cycle life and energy density
Need the longest run time possible at the lightest weight, go X4!
Density Cell Highlights
Explore 4 reasons you need a Density Battery
Frequently Asked Questions
A solid-state battery is an advanced form of lithium-based energy storage that replaces the flammable liquid or gel electrolyte found in conventional lithium-ion cells with a solid electrolyte material. This solid electrolyte can be made from ceramics, polymers, or composite materials that conduct lithium ions between the anode and cathode. Because the electrolyte is solid, it enables a thinner, denser, and more stable cell structure, improving both energy density and safety.
In a traditional lithium-ion battery, ions move through a liquid electrolyte, separated by a porous polymer separator soaked in flammable solvent. Manufacturing requires moisture-sensitive environments, multiple coating stages, and careful drying to avoid contamination or short circuits. In contrast, solid-state cells eliminate the liquid layer, allowing for simpler stacking, solid lamination, or compression-based assembly. The solid separator acts as both the ionic conductor and physical barrier, reducing the risk of dendrite formation and internal shorting.
Because of this structural difference, solid-state batteries can operate at higher voltages and energy densities, with much lower thermal risk. They can also integrate metallic lithium or advanced anode materials that are too unstable for liquid systems, further increasing range and lifespan.
In essence, solid-state batteries represent a major evolution in cell architecture—safer, denser, and more efficient—enabling next-generation performance for electric vehicles, drones, marine systems, and portable energy storage.
Density does not make claims to have a 100% solid battery. Our products are often referred to as semi or quasi.
Density Batteries use an advanced solid-state chemistry, which replaces most of the liquid electrolyte found in traditional lithium-ion cells with a far more stable material. This results in much less risk of fire, leakage, or thermal runaway, while still allowing efficient ion transfer for high performance. The design achieves higher energy density—often up to 430 Wh/kg—meaning more power can be stored in the same size or weight compared to typical lithium-ion batteries.Each Density Battery also includes an intelligent BMS with Bluetooth and CAN communication for real-time monitoring of temperature, voltage, and performance data. This enables greater control and diagnostic capability than conventional lithium-ion packs, which often use simpler protection boards.The near-solid construction provides enhanced stability, better tolerance to vibration and temperature extremes, and slower degradation over time. While small amounts of liquid electrolyte may still be present, the overall architecture is significantly safer and more robust.In short, Density Batteries deliver higher energy density, improved safety, and smarter management than conventional lithium-ion technology, offering a more advanced balance of performance, longevity, and reliability across a wide range of applications.
Density Batteries power an exceptionally wide range of industries and products thanks to their compact solid-state design, high energy density, and built-in intelligence. They are ideal for drones, eVTOL aircraft, RC vehicles, and camera rigs; electric bikes, scooters, skateboards, and go-karts; utility terrain vehicles (UTVs), all-terrain vehicles (ATVs), and electric motorbikes; portable generators and power stations; home energy storage systems and off-grid solar installations; marine and watercraft applications including outboards, trolling motors, jet skis, and tenders; robotic platforms and automated guided vehicles (AGVs); agricultural drones and spraying systems; mining and construction equipment; electric wheelchairs and mobility scooters; backup UPS systems; outdoor lighting and monitoring systems; telecommunications towers and mobile signal repeaters; smart inverter and VPP-connected storage units; medical carts and portable diagnostic machines; autonomous delivery robots and warehouse AMRs; data acquisition and environmental sensor nodes; remote research and monitoring stations; compact power tools and industrial battery packs; electric golf carts and buggies; caravan and camper power systems; portable charging cases and “electric jerry can” units; renewable microgrids; emergency services equipment; marine navigation and sonar devices; 3D mapping and LiDAR payloads; marine solar regeneration systems; underwater ROVs; electric surfboards and foils; portable audiovisual gear and broadcast setups; stage lighting and mobile production rigs; off-grid refrigeration and food trucks; farming robots and vineyard sprayers; irrigation controllers and autonomous tractors; electric go-kart tracks and amusement rides; modular battery swap cabinets; RV and van life systems; commercial cleaning robots; construction site tools and pumps; EV conversion kits for motorcycles, cars, and boats; mobility aids and medical transport systems; golf driving range robots; portable welding and field repair power systems; electric snowmobiles and sleds; and experimental aerospace energy platforms.
In short, Density Batteries deliver lightweight, durable, high-performance energy for virtually any application requiring compact, safe, and high-output power.
Density Batteries are designed with user safety and flexibility in mind. Our Smart PowerPacks include a fully integrated Battery Management System (BMS) with on-pack monitoring, Bluetooth connectivity, and automatic protection against overcharge, over-discharge, and temperature extremes. This makes them suitable for DIY installation in many applications, while still maintaining strong built-in safeguards.
That said, we always recommend consulting with our technical team before installation to ensure your setup is properly matched to your load, charger, and wiring environment. Every application — whether it’s a caravan, marine system, drone, or off-grid setup — has different electrical and thermal requirements, and our engineers can help you configure the safest and most efficient system.
For users working with Bare PowerPacks, external management is required. These packs should be paired with one of our Intelligent DCDC or balancing modules to ensure proper monitoring and cell protection.
We also offer a custom integration service, where we can tailor your pack configuration, wiring harness, and charging interface to suit your exact needs. This ensures the installation not only performs optimally but also meets the highest standards of safety, longevity, and compliance.
Density X2 series have up to double the energy per kilogram of traditional LiPo or NMC batteries and up to triple LFP, therefore you can expect much longer power per charge. For even longer run time, upgrade to our X3 series, or for ultimate capacity choose X4.
Yes we ship worldwide with express airfreight providers such as DHL.
Land, Air, Sea.
Technical Guide
Short answer: energy density tiers.
- X2 ≈ ~2× the practical energy density of a typical LFP pack of similar size/weight.
- X3 ≈ ~3× LFP.
- X4 ≈ up to ~4× LFP (our highest tier).
All tiers use our solid-state architecture; higher tiers deliver more Wh per kg and per liter, with different price/performance trade-offs.
- LiPo (lithium-polymer): liquid/gel electrolyte; good power but sensitive to puncture, swelling, and thermal runaway.
- Density solid-state: solid electrolyte stack; higher energy density (tier-dependent), improved mechanical robustness, greatly reduced leakage risk, and inherently lower fire/thermal propagation risk. Our BMS adds another layer of protection.
- NMC: high energy density but relies on liquid electrolyte and tighter safety envelopes; performance degrades faster at heat.
- Density: solid electrolyte and tailored cathode/anode system; safer failure modes, better storage stability, and strong Wh/kg at the X-tiers. Ideal where both energy and safety matter.
- LFP: very stable and long-cycle, but larger/heavier for the same capacity.
- Density: smaller & lighter for equivalent usable energy; better cold-weather performance; designed for compact, mobile, or flight-critical use. If your constraint is size/weight and runtime, choose Density. If budget and ultra-long cycle life matter most and space is plentiful, LFP can still be fine.
- Smart batteries (integrated BMS + comms): use a simple Density Charger matched to the pack voltage. Plug-and-go; balancing handled internally.
- Bare PowerPack: use a Density Charger plus our Intelligent Balancing Module (IB Module) for active cell balancing and protections. (Think of the IB Module as the “brains” you add when the battery itself is intentionally minimal.)
- Stack architecture with a solid electrolyte, compression-controlled assembly, and cell-to-cell isolation features.
- Thermal propagation resistance: solid electrolyte and our module design reduce the likelihood of venting
- Quality controls: every pack gets electrical, thermal, and insulation checks; Smart versions add BMS self-tests and logging.
- Net effect: lower fire risk and more predictable aging behavior than traditional liquid-electrolyte chemistries.
- Cold: Solid-state chemistry maintains usable power where liquid-electrolyte cells sag; expect more reliable starts and higher available energy at low temps.
- Hot: Better thermal stability; BMS (on Smart PowerPacks) safeguards will throttle output if temps exceed safe limits.
(Always follow our published operating range per model.)
Nominal cycle counts can be lower than LFP, but each charge delivers more energy (Wh) due to higher density, so lifetime energy throughput is competitive.
Smart charge profiles and proper thermal management maximize life.
High-power DC charging is supported within each model’s charge C-rate.
Select Smart models include regulated DC rails and USB-C/A PD3.0 for mobile device charging. See the specs on each product page.
- Low self-discharge vs liquid chemistries; best stored cool and partially charged (typically 40–60% SOC).
- Smart packs can auto-enter storage mode.
- Bare packs require you to monitor SoC and other conditions, which can be done by purchasing the Density Intelligence Balancing Module
Exact numbers depend on X-tier and model. As guidance: continuous discharge supports demanding loads (drones/RC/portable ESS), and pulse ratings cover short bursts (take-off, acceleration). Check the continuous and pulse specs before sizing motors/inverters.
Smart models display SOC, voltage, current, temperature, and cycle data over Bluetooth/serial for dashboards and diagnostics. Bare packs rely on the (sold separately) Density Intelligent Balancing Module or external instrumentation.
