MiO

Precision Space · Small-Format

Every Millimeter
Counts.

Small-format custom pouch cells, coded thickness × width × length in mm — hundreds of stock sizes, or built to your exact dimensions.

Sub-mm Thin Coded by Size Custom Form
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Ultra-Thin LiPo battery product shot

Technical

Specifications

Sizing
Coded Thickness × Width × Length (mm)
Thickness
Ultra-thin — sub-1 mm available
Chemistry
Li-Polymer (LiPo)
Shapes
Rectangular / stepped / curved / round
Capacity range
10 – 1,500 mAh
Nominal voltage
3.7 V (3.8 / 3.85 V hi-volt option)
Protection
Integrated PCM / fuel gauge
Connector
micro-JST / FPC / soldered tabs
Cycle life
≥ 500 cycles
Operating temp
0 °C to 45 °C

Pricing

Volume Pricing

Indicative unit price per cell · FOB

MIO-301525 · Ultra-Thin LiPo

MIO-301525

3.0 × 15 × 25 mm · 100 mAh

1–999

$1.80

1,000–9,999

$1.35

10,000+

$0.98

Best
MIO-402030 · Ultra-Thin LiPo

MIO-402030

4.0 × 20 × 30 mm · 280 mAh

1–499

$2.60

500–4,999

$2.05

5,000+

$1.60

Best
MIO-503040 · Ultra-Thin LiPo

MIO-503040

5.0 × 30 × 40 mm · 750 mAh

1–299

$3.90

300–2,999

$3.20

3,000+

$2.55

Best

Where it fits

Applications

Smart Wearables

Curved cells that follow the contour of a band or case.

Medical Sensing

Slim, biocompatible cells for patches and monitors.

Hearables & TWS

Tiny high-density cells for earbuds and charging cases.

Smart Cards & Tags

Ultra-thin cells for smart cards and IoT asset tags.

Process

Engineering & Testing

  1. 01

    Feasibility

    Form-factor & capacity feasibility report within 24h.

  2. 02

    Sample Tooling

    Low-volume shaped-cell prototyping.

  3. 03

    Safety Testing

    Crush, bend and over-charge validation.

  4. 04

    Pilot Run

    Consistency checks before volume production.

Questions

FAQ

How do the model numbers work?

Each model number encodes the cell dimensions — thickness, then width, then length in millimetres. Send us a code or your 3D envelope and we match an existing size or build to it.

Can you build a non-rectangular shape?

Yes — stepped, curved, round and custom outlines are routine. Send your 3D envelope and we'll return a feasibility report.

Is the cell safe against bending?

Shaped cells are validated for the intended curvature with crush and bend testing; we specify a safe bend radius.

Lead time for a custom shape?

Feasibility in 24h; samples typically in 2–3 weeks depending on tooling.

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