From 15 mAh arc cells in smart rings to 36 Wh battery packs for MR headsets, today’s wearable and XR devices come in unique shapes and sizes that standard off-the-shelf batteries simply cannot fit. For smart glasses, VR headsets, smartwatches and more, battery size, weight and runtime remain the biggest bottlenecks to product performance and user experience.
At LanDazzle Battery, we design and manufacture fully custom lithium-ion cells tailored to your device’s internal envelope. From material chemistry to structural design, our solutions unlock higher energy density, cooler operation and longer cycle life in any form factor.
The Design Challenge: Why Standard Batteries Fail Wearables
Every wearable category faces unique battery design constraints that generic cells cannot solve:
- Smart glasses: Most use 84–263 mAh slim pouch cells split across both temples. The core challenge is fitting cells to curved temple shapes, balancing center of gravity, and delivering all-day runtime.
- VR headsets: Typical 3.6–5.3 Ah (14–21 Wh) single cells often cause front-heavy weight distribution, hurting long-wear comfort.
- MR headsets: With 20–36 Wh power demand for high-performance compute, heat dissipation and head weight reduction are critical — many rely on bulky external battery packs.
- Smartwatches: 280–590 mAh pouch cells must fit around the main SoC in an extremely compact case, leaving little room for capacity gains.
- Smart rings: 15–23 mAh curved cells are required for the circular form factor, with no standard off-the-shelf parts available.
A standard battery forces your product to adapt to its shape. A custom cell does the opposite — it adapts to your product.
LanDazzle Custom Batteries for Smart Glasses, VR/MR & Wearables
As a single partner for full cell design and manufacturing, we tune every aspect of the battery to your product requirements.
Core Specifications
- Minimum thickness: 0.6 mm
- Minimum width: 5.0 mm
- Length range: 5–65 mm
- Volumetric energy density: up to 750 Wh/L
Fully Customizable Form Factors
We produce cells in nearly any geometry to match your industrial design: rectangular, square, L-shape, oval, semicircle, arc, bent, T-shape and custom stacked irregular shapes.
High-Performance Material System
Our proprietary chemistry combines high-voltage LiCoO₂ cathode, silicon-carbon anode and single-walled carbon nanotube (SWCNT) conductive network to maximize energy storage in minimal volume.
Stacked-Electrode Internal Structure
Unlike traditional wound cells, our stacked-electrode design delivers lower internal resistance, less heat generation and longer cycle life.
Core Advantages of LanDazzle Custom Cells
Compared to off-the-shelf standard cells, our custom batteries deliver measurable performance gains across three critical dimensions.
1. Advanced Materials: 20–40% More Energy in the Same Footprint
Our competitive edge starts at the material level, giving product designers more headroom instead of forcing compromises.
- High-voltage LiCoO₂ cathode: Delivers a nominal working voltage of 3.87–3.95 V, increasing energy per unit volume.
- Silicon-carbon (Si-C) anode: Boosts volumetric energy density by 20–40% compared to graphite anodes, while supporting fast charging and high peak discharge rates.
- SWCNT conductive network: Achieves superior conductivity at very low loading levels. It maintains a stable conductive network through charge-discharge cycles, suppressing DC internal resistance growth over the cell’s entire lifespan.
Real-world example: In a fixed smart glasses temple cavity, upgrading to a silicon-carbon anode can lift capacity from ~155 mAh to 190–215 mAh. Alternatively, we can keep the same capacity and reduce cell thickness for a slimmer temple profile.
2. Stacked-Electrode Design: Cooler Operation & Longer Cycle Life
Replacing conventional wound construction with stacked-electrode technology improves core battery performance across the board:
- 10% higher space utilization
- 20% higher capacity
- 50% lower internal resistance
- Over 500 charge-discharge cycles
Why it runs cooler
- Shorter, uniform current paths reduce contact resistance and eliminate local hotspots
- Lower DC resistance means less self-heating and smaller voltage sag under load
- Optimized conductive additives maintain stable performance during pulse load scenarios
Why it lasts longer
- Stacked cells exhibit less swelling over cycles, improving long-term reliability
- SWCNT network prevents gradual resistance growth over the cell’s lifetime
- All cells are validated beyond 500 cycles and fully safety certified
Cooler operation isn’t just about wearing comfort — lower internal resistance translates to more usable runtime and steadier voltage during high-load scenarios such as camera bursts or high-brightness displays.
3. Precision Shape Customization: Fill Every Millimeter of Available Space
We design cells to match your device’s internal cavity exactly, down to 0.6 mm thin. No more wasted dead space from rectangular cells forced into irregular enclosures.
Whether you need an arc cell following a ring’s inner radius, a trapezoidal cell for a tapering glasses temple, or an L-shaped cell wrapping around a smartwatch SoC, our custom geometries reclaim volume that standard cells leave unused — turning wasted space into real runtime.
Mass-Produced Smart Glasses Cell Reference
These production-ready cells are optimized for smart glasses temples, with four form factors to match different cavity designs:
| Form Factor | Capacity / Voltage | Energy | Dimensions (L × W × T, mm) | Energy Density (Wh/L) |
|---|---|---|---|---|
| Custom-shaped | 155 mAh / 3.87 V | 0.60 Wh | 36.6 × 8.94 × 5.42 | 441 |
| Rectangular | 240 mAh / 3.8 V | 0.91 Wh | 42.7 × 10.1 × 4.5 | 451 |
| Trapezoidal | 250 mAh / 3.87 V | 0.97 Wh | 44.0 × 11.9 × 4.1 | 506 |
| Custom-shaped | 190 mAh / 3.87 V | 0.74 Wh | 27.0 × 14.0 × 3.5 | 539 |
Get a Custom Battery Solution for Your Device
The best battery for your product is the one built specifically for it.
Simply send us your device’s internal envelope dimensions and target runtime requirements. We will provide a full custom cell proposal including estimated capacity, form factor, dimensions and energy density.
Contact us today to start your custom battery project:
Email: info@landazzle.com
Whatsapp: +8618938252128
LanDazzle Battery — high-performance custom cells for the next generation of wearables and XR devices.
