Space utilization
Cell geometry is developed around the available envelope, not a generic battery catalog size.
More design freedom in less space
Miniature & Curved Battery Solutions
Thin, miniature, curved, and custom-shaped battery development for products where every millimeter influences comfort, enclosure design, and usable runtime.
1 mm classUltra-thin formats for compact product architecture
Custom shapeRectangular, narrow, curved, and application-led formats
10–5000mAhBroad miniature LiPo capacity development range
Integrated packProtection, tabs, wires, connector, label, and fixture
Solution overview
The battery should follow the product, not define it.
Wearable and medical products often have irregular internal space, strict weight limits, skin-contact constraints, and short charging windows.
Our engineering process coordinates cell dimensions, tab orientation, swelling allowance, protection electronics, and mechanical integration from the first prototype.
- Ultra-thin and narrow pouch formats
- Curved concepts for body-worn and ergonomic devices
- Custom tab, wire, connector, and protection placement
- Dimensional tolerance and assembly fixture planning
Performance priorities
What the battery system must solve.
The target is translated into measurable electrical, thermal, mechanical, safety, and production requirements.
Comfort and weight
Battery thickness, mass distribution, edges, and mounting are considered for wearable products.
Electrical integration
Protection boards, NTC, tabs, connectors, and flex routing are packaged within tight constraints.
Production control
Dimensional inspection, appearance standards, impedance matching, and fixture design support repeat builds.
Integrated engineering
From one performance requirement to a production-ready pack.
Cells are only one part of the solution. The complete current path, structure, electronics, test plan, and manufacturing controls are developed together.
Device envelope
Review 3D space, compression zones, bending limits, mounting, and service access.
Cell format
Select or develop thickness, width, length, capacity, tab direction, and shape.
Pack integration
Package PCM, wiring, connector, sensor, insulation, label, and pull tab.
Prototype fit
Verify installation, charging, runtime, thermal behavior, swelling clearance, and assembly process.
Technical framework
Define the operating target before selecting a battery.
| Typical chemistry | Lithium polymer pouch cell |
|---|---|
| Format | Ultra-thin, narrow, miniature, curved, or custom-shaped |
| Nominal voltage | 3.7V typical; series packs available when space permits |
| Integration | PCM, NTC, fuel gauge, tabs, wires, connector, label, foam, and fixture |
| Validation focus | Dimensions, capacity, swelling allowance, drop, bend constraints, charging, and device runtime |
Application fit
Products that benefit from this solution.
Smart wearables
Battery architecture is matched to the device load, environment, enclosure, charging, and service-life target.
Medical patches
Battery architecture is matched to the device load, environment, enclosure, charging, and service-life target.
Miniature trackers
Battery architecture is matched to the device load, environment, enclosure, charging, and service-life target.
Personal care devices
Battery architecture is matched to the device load, environment, enclosure, charging, and service-life target.
Related battery platforms
Starting points for engineering evaluation.
Final battery selection and specifications should be confirmed against the complete application requirement.
Factory and validation
Engineering decisions supported by controlled manufacturing.
VTCBATT supports cell matching, incoming inspection, pack assembly, electrical testing, temperature testing, vibration, impact, protection verification, application-load testing, and certification planning.
Factory-direct
Engineering, assembly, inspection, and production support within one supply chain.
OEM & ODM
Custom electrical, mechanical, labeling, packaging, and documentation options.
Stable BOM
Controlled sourcing, revision management, cell matching, and repeat-order standards.
Compliance support
Project planning for UN38.3, IEC 62133, UL, CE, RoHS, MSDS, and market requirements.
FAQ
Common miniature & curved battery questions.
What information is required to evaluate this battery solution?
Provide nominal voltage, target capacity or runtime, continuous and peak current, maximum dimensions, temperature range, charging method, annual quantity, and certification requirements.
Can VTCBATT customize the pack dimensions and electronics?
Yes. Cell arrangement, dimensions, BMS or PCM, connector, wire length, NTC, communication, label, enclosure, mounting, and packaging can be developed around the product.
Can prototype samples be built before production?
Yes. Prototype packs can be produced for installation, load, runtime, charging, thermal, protection, and device-level validation before the BOM is released.
How is repeat-order quality controlled?
VTCBATT uses controlled cell sourcing, matching criteria, documented BOMs, process inspection, electrical tests, and outgoing inspection to support stable production.
Which certifications can be supported?
Depending on chemistry and target market, support may include UN38.3, IEC 62133, UL, CE, RoHS, MSDS, transport documents, and project-specific tests.
How thin can a custom miniature LiPo battery be?
Ultra-thin lithium polymer development can reach approximately the 1 mm class for selected footprints and capacities. Final thickness must include manufacturing tolerance, swelling allowance, protection, insulation, and the mechanical pressure applied by the device.
Can VTCBATT manufacture curved lithium polymer batteries?
VTCBATT can evaluate fixed curved and custom-shaped LiPo battery concepts using the required radius, bend direction, enclosure, capacity, load, and service-life target. A curved battery is designed for a fixed geometry and should not be treated as a repeatedly flexible component.
What information is needed for a wearable battery design?
Provide the CAD envelope, maximum thickness, fixed bend radius, target capacity or runtime, continuous and peak current, charging method, skin-contact temperature limits, connector, annual quantity, and certification market.
How are miniature LiPo batteries protected?
Miniature LiPo packs can integrate a compact PCM, NTC, tabs, wires, connector, insulation, and application-specific mounting. Protection normally covers overcharge, over-discharge, over-current, and short circuit while fitting within the available product space.
Start a solution project
Bring us the performance target. We will engineer the battery.
Share the device, voltage, runtime, current, dimensions, environment, quantity, and certification targets for an engineering review.