Delivering 3.7V / 320mAh (1.18Wh), the ASOL 10440 3.7V 320mAh Lithium-ion Battery Cell is a cylindrical lithium-ion cell weighing ~5.3–5.6g. Its small footprint suits space-constrained electronics where a slim, lightweight cell is required. Built with a built-in BMS for overcharge, over-discharge, and short-circuit protection, it is fully customizable for OEM and ODM programmes.
Features
- Slim 10 × 44 mm cylindrical format — the longest of the mid-range 10-series cells for maximum runtime in a 10 mm diameter
- 3.7 V nominal with 320 mAh capacity, the highest of the standard 10-series before the 10 × 84 mm cell
- Stable, low-impedance discharge for dependable power under continuous load
- Strong cycle endurance and low self-discharge for long storage intervals
- Integrated protection against overcharge, over-discharge and short circuit
- Reliable across a wide ambient-temperature range
Applications
Where the 10440 is used
Compact handheld gadgets & smart accessories.
Slim 10mm cell powers wearables & personal-care devices.
Compact runtime for wireless audio & IoT products.
Reliable power for portable medical & measurement tools.
Custom low-to-medium power battery packs.
Characteristics
| Parameter | Specification |
|---|---|
| Nominal Capacity | 320mAh |
| Nominal Voltage | 3.7V |
| AC Impedance | ≥150mΩ |
| Cell Diameter | 10.0 ± 0.1mm |
| Cell Height | 44.0 ± 0.2mm |
| Cell Weight | ~5.3-5.6g |
| End-of-charge Voltage | 4.2V |
| Charging Method | ≥0.5C (160mA) at CC/CV |
| End-of-discharge Voltage | 3.0V |
| Max. Continuous Discharge Current | 0.2C (64mA) / 0.5C (160mA) |
| Max. Pulse Discharge Current | 1C (320mA) |
| Cycle Life | 300-500 cycles (≥80% capacity) |
| Charging | 0°C ~ 45°C |
| Discharging | -20°C ~ 60°C |
| Storage | -10°C ~ 35°C |
Frequently Asked Questions
What are the key specifications of the ASOL 10440 3.7V 320mAh Lithium-ion Battery Cell?
The ASOL 10440 3.7V 320mAh Lithium-ion Battery Cell is a 3.7V 320mAh lithium battery, weighing ~5.3-5.6g.
How many charge cycles does the ASOL 10440 3.7V 320mAh Lithium-ion Battery Cell last?
The ASOL 10440 3.7V 320mAh Lithium-ion Battery Cell is rated for 300-500 cycles, for years of dependable performance in your device.
Does ASOL offer OEM/ODM customization for the ASOL 10440 3.7V 320mAh Lithium-ion Battery Cell?
Absolutely. As the manufacturer, ASOL tailors the cell — voltage, capacity, connector, wiring and private-label printing — to match your device and production volume through our OEM/ODM service.
Can I get a sample or a quote for the ASOL 10440 3.7V 320mAh Lithium-ion Battery Cell?
Sample evaluation may be available for selected cylindrical and lithium polymer battery projects, subject to specification review and product availability. Sample freight is paid by the customer. For a quote, email info@asolbattery.com or WhatsApp +86 15779858703 — replies typically arrive within 24 hours on working days.
Get a Sample Evaluation or Quote Today
Email: info@asolbattery.com
WhatsApp: +86 15779858703
Response: Within 24 hours on working days
Need a different size or capacity? Explore ASOL’s full cylindrical battery range →
