ASOL 10400 3.7V 300mAh Lithium-ion Battery Cell

Cylindrical Cell

The ASOL 10400 is a compact 3.7V 300mAh Li-ion cylindrical cell (1.11Wh) in a 1S1P single-cell configuration, measuring just 10 × 40 mm for slim, space-constrained electronics. Ideal for earphone charging cases, IoT sensors and slim wearables. Full OEM & ODM – capacity, wire length, connector and PCM protection all configurable.

Key SpecPrecise Specification
Model No.ASOL 10400
Core Electrical Specs3.7V · 300mAh · 1.11Wh
Cell Configuration1S1P Li-ion cylindrical cell
Discharge Performance0.2C (60mA) / 0.5C (150mA) continuous · 1C (300mA) pulse
Protection SystemOptional PCM/PCB (over-charge / over-discharge / short-circuit)
Cycle Life300–500 cycles (≥80% capacity)
Cell Size & Weight10.0 ± 0.1mm × 40.0 ± 0.2mm · ≈ 5.0–5.3g
Standard ConnectorWire leads, customizable
Compliance & CertificationsAvailable on request
Est. 2020 50+ Countries 2 Facilities OEM & ODMProject Review
Lithium-IonRechargeable lithium
Built-in protectionSafe lithium chemistry
OEM / ODMFactory-direct maker
Custom-builtCapacity · voltage · connector
WorldwideShipping & support

The ASOL 10400 3.7V 300mAh Lithium-ion Battery Cell is a cylindrical lithium-ion cell rated at 3.7V / 300mAh (1.11Wh) weighing ~5.0–5.3g. Its small footprint suits space-constrained electronics where a slim, lightweight cell is required. An integrated protection circuit guards against overcharge, over-discharge, and short circuit, and full OEM/ODM customization is available.

Features

  • 10 × 40 mm cylindrical cell delivering noticeably more capacity than the shorter 10-series options
  • 3.7 V / 300 mAh for extended runtime in compact, space-constrained products
  • Low-resistance, stable discharge that sustains consistent power output
  • Long cycle life and low self-discharge for reliable long-term storage
  • On-cell safety protection against overcharge, over-discharge and short circuit
  • Wide working temperature range for use in diverse environments

Applications

Where the 10400 is used

Earphone Cases

Slim charging cases for Bluetooth earphones & TWS buds.

IoT Sensors

Wireless modules & sensors needing reliable long-term runtime.

Slim Wearables

Smart pens, hearing aids and compact wearable devices.

Portable Medical

Lightweight medical equipment with stable discharge.

Custom Packs

Tailored consumer-electronics battery packs.

Characteristics

Parameter Specification
Nominal Capacity 300mAh
Nominal Voltage 3.7V
AC Impedance ≥150mΩ
Cell Diameter 10.0 ± 0.1mm
Cell Height 40.0 ± 0.2mm
Cell Weight ~5.0-5.3g
End-of-charge Voltage 4.2V
Charging Method ≥0.5C (150mA) at CC/CV
End-of-discharge Voltage 3.0V
Max. Continuous Discharge Current 0.2C (60mA) / 0.5C (150mA)
Max. Pulse Discharge Current 1C (300mA)
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 10400 3.7V 300mAh Lithium-ion Battery Cell?

The ASOL 10400 3.7V 300mAh Lithium-ion Battery Cell is a 3.7V 300mAh lithium battery, weighing ~5.0-5.3g.

How many charge cycles does the ASOL 10400 3.7V 300mAh Lithium-ion Battery Cell last?

The ASOL 10400 3.7V 300mAh Lithium-ion Battery Cell is rated for 300-500 cycles, well beyond the lifespan of a comparable standard cell.

Does ASOL offer OEM/ODM customization for the ASOL 10400 3.7V 300mAh Lithium-ion Battery Cell?

Yes. ASOL is a battery manufacturer, so capacity, voltage, cell configuration, connectors, wire length and custom labeling can all be built to your specification and order volume under OEM or ODM terms.

Can I get a sample or a quote for the ASOL 10400 3.7V 300mAh 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. Reach us at info@asolbattery.com or +86 15779858703 on WhatsApp for pricing; we usually reply 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

Project Inquiry

Send Us Your Battery Requirements

For a faster and more accurate quotation, please provide the key details below.
ASOL will recommend a suitable lithium battery solution based on your application, voltage, capacity, size and connector requirements.

Target Voltage3.7V, 7.4V, 12.8V, 24V, 48V or custom voltage
CapacityRequired Ah / Wh or expected runtime
Size / Dimension RequirementBattery size, device space or housing limit
ApplicationDevice type, working current and usage environment
QuantityProject review, pilot run or batch production
Connector / Wire RequirementConnector model, wire length and polarity
OEM / Branding RequestLogo, label, casing or packaging request
Destination CountryShipping country and required documents

ASOL will review your requirements and reply with a suitable battery solution.

Shenzhen Asol Battery Tech Co., Ltd. (ASOL)

Assembly, production and global distribution of advanced lithium battery solutions, including custom lithium-ion and LiFePO4 battery packs, lead-acid replacement batteries and OEM/ODM battery solutions for B2B clients worldwide.

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Contact & Trust

  • Manufacturer: Shenzhen Asol Battery Tech Co., Ltd.
  • Location: Qingxi Town, Dongguan, Guangdong, China
  • Email: info@asolbattery.com
  • Tel: +86 157 7985 8703
  • Service: OEM/ODM lithium battery pack solutions

ASOL focuses on lithium battery packs, LiFePO4 lead-acid replacement batteries and OEM/ODM battery solutions, with support for BMS/PCM matching, wiring, connectors, labeling and worldwide B2B supply.

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