Cylindrical 18650 Cell
Molicel M35A
Cylindrical 18650 cell delivering 3.4 Ah capacity with 259 Wh/kg energy density and 10 A maximum discharge rate.
Overview
The Molicel INR-18650-M35A is a lithium-ion Li-ion cylindrical 18650 cell designed for applications that demand reliable performance. Released in 2019 and manufactured in Taiwan, this cylindrical 18650 cell delivers 3.4 Ah capacity and 12.42 Wh of energy at a nominal voltage of 3.6 V, with a maximum continuous discharge capability of 10 A, making it suitable for general-purpose applications with moderate power requirements.
Key Features
Discharge rate: 10 A continuous (2.9 C)
Charging rate: 0.5 C charging rate
Energy density: 259 Wh/kg
Power density: 750 W/kg
Applications: e-mobility, space, power tools
Technical Specifications from the Manufacturer
Parameter
Manufacturer
Molicel
Model
INR-18650-M35A
Type
Li-ion
Form factor
Cylindrical 18650
Country of origin
Taiwan
Release year
2019
Nominal voltage
3.6
Energy capacity [Wh]
12.42
Capacity [Ah]
3.4
Gravimetric energy density [Wh/kg]
259
Gravimetric power density [W/kg]
750
Max continuous discharge [A]
10
Volume [cm³]
17.11
Mass [g]
48
Positive electrode (cathode)
Ni-based
Negative electrode (anode)
Graphite
Value
Applications & Use‑Cases
The Molicel INR-18650-M35A is well suited to the following applications due to its cylindrical 18650 and balanced performance.
E-Mobility: Requires balanced energy and power density for range and acceleration, high cycle life for daily use, and robust calendar life to ensure long-term reliability.
Space: Requires exceptional gravimetric energy density for mass-constrained systems, stable performance across extreme temperature ranges, and proven reliability for mission-critical operations.
Power Tools: Needs sustained high discharge for continuous operation under load, low voltage polarisation to maintain tool performance, and mechanical robustness for demanding work environments.
General Applications: Suitable for applications requiring reliable lithium-ion performance with proven cycle life, consistent capacity delivery, and operational safety across diverse use cases.
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Performance & Model Data
Below are modelled performance metrics for the Molicel INR-18650-M35A across key indicators, including constant current behaviour, rate capability, temperature dependence, and available power under representative drive cycle conditions.
Constant Current Voltage
Access Molicel M35A constant-current discharge curves in Voltt to size your pack against the voltage window your system actually needs. (Chart shown is illustrative, not M35A data.)
Constant Current Temperature
Access Molicel M35A thermal discharge data in Voltt to specify cooling and cell spacing before you commit to a pack layout. (Chart shown is illustrative, not M35A data.)
Pulse Power Behaviour
Access Molicel M35A pulse power maps in Voltt to set peak current limits and parallel count for your worst-case load. (Chart shown is illustrative, not M35A data.)
Dynamic Profile Response
Access Molicel M35A mission profile simulations in Voltt to prove the pack holds up over a real duty cycle before you build it. (Chart shown is illustrative, not M35A data.)
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Case Studies
See how we helped McMurtry reduce cell evaluation time by 70% through data driven testing and modelling.
Motorsports
McMurtry Automotive: Faster cell evaluation
McMurtry Automotive used The Voltt and validated cell models to evaluate the transition from the Molicel P45B to P50B during early pack concept development.
Side by side modelling enabled rapid comparison of electrical and thermal behaviour, avoiding lengthy physical test campaigns. This approach reduced cell evaluation time by seven months, allowing the team to lock in cell selection and pack assumptions earlier while lowering technical risk and accelerating vehicle development.
Comparison with Related Cells
Compare the Molicel M35A with similar Cylindrical 18650 cells offering comparable capacity and performance characteristics.
Model
Capacity
Max Discharge
Typical Use
Access Cell Data
Manufacturer Background
Molicel
Molicel is a Taiwanese manufacturer of high-power cylindrical lithium-ion cells
Molicel is the cell brand of E-One Moli Energy, a Taiwanese manufacturer whose technology traces back to lithium battery research begun in Canada in the 1970s. The company produces cylindrical 18650 and 21700 cells engineered for high continuous discharge, fast charge acceptance and thermal stability under sustained load. Its P series power cells and higher-capacity energy variants are used in eVTOL aircraft, motorsport and performance vehicles, power tools and aerospace systems, where discharge rate rather than energy density sets the design limit. Manufacturing is based in Taiwan with a long-standing Canadian research presence. Molicel is the reference supplier for many programmes that cycle hard and frequently.
Frequently Asked Questions
What is the capacity and voltage of the Molicel M35A?
The Molicel M35A has a nominal capacity of 3.4 Ah and a nominal voltage of 3.6 V, providing 12.4 Wh of energy per cell.
What is the maximum continuous discharge capability of the Molicel M35A?
The Molicel M35A supports continuous discharge rates up to 10 A, delivering exceptional power density of 750 W/kg.
How much does the Molicel M35A weigh and what is its volume?
The cell has a mass of 48 g and a volume of 17.11 cm³.
In which industries is the Molicel M35A commonly used?
The Molicel M35A is used across e-mobility, energy storage, and general-purpose applications, applications that demand reliable performance and balanced specifications.
What is The Voltt and how does it accelerate cell evaluation?
The Voltt holds 500+ verified commercial cell datasheets alongside validated simulation models built from cells characterised in About:Energy's own lab. Engineers screen candidates against their real duty cycle before buying hardware, which cut cell evaluation time by seven months for McMurtry Automotive and reduces evaluation cycles by up to 70%.
What data can be extracted using The Voltt?
Constant-current discharge curves at multiple C-rates, DC internal resistance against state of charge and temperature, pulse power maps, thermal response, and full mission-profile simulation with user-defined pack configurations. Models are available as equivalent circuit, thermal, physics-based and degradation formats, exportable for use in MATLAB, Simulink and Python workflows.
