Cylindrical 18650 High-Power Cell
Ampace JP30
Cylindrical 18650 cell delivering 3 Ah capacity, 222 Wh/kg energy density and 56 A maximum discharge rate.
Overview
The Ampace JP30 is a high-power Li-ion cylindrical 18650 cell designed for applications that demand sustained high current. Released in 2025 and with the manufacturer based in China, this cylindrical 18650 cell delivers 3 Ah capacity and 11.1 Wh of energy at a nominal voltage of 3.7 V, with a maximum continuous discharge capability of 56 A, making it well suited to high-power systems. At 18.7 C its continuous discharge capability is high for a cell of this capacity class. Among the 18650 cylindrical cells in the About:Energy battery library, the Ampace JP30 ranks 2nd of 94 for maximum continuous discharge. Its 56 A compares with a 18650 cylindrical median of 12.2 A.
Key Features
Extremely high discharge rate: 56 A continuous (18.7 C)
Energy density: 222 Wh/kg
Power density: 4,144 W/kg
Capacity: 3 Ah nominal capacity
Applications: drones, motorsports, e-mobility
Technical Specifications from the Manufacturer
Parameter
Manufacturer
Ampace
Model
JP30
Type
Li-ion
Form factor
Cylindrical 18650
Country of origin
China
Release year
2025
Nominal voltage
3.7
Energy capacity [Wh]
11.1
Capacity [Ah]
3
Gravimetric energy density [Wh/kg]
222
Gravimetric power density [W/kg]
4144
Max continuous discharge [A]
56
Volume [cm³]
17.65
Mass [g]
50
Positive electrode (cathode)
Ni-based
Negative electrode (anode)
Value
Applications & Use‑Cases
The Ampace JP30 is well suited to the following applications due to its 18650 format and high power performance.
Drones: Demands high gravimetric power density for thrust and payload capacity, rapid current response for flight control, and stable voltage delivery across dynamic flight profiles.
Motorsports: Demands sustained high discharge under competitive load profiles, rapid transient response for acceleration, and thermal stability to maintain performance during race conditions.
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.
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 Ampace JP30 across key indicators, including constant current behaviour, rate capability, temperature dependence, and available power under representative drive cycle conditions.
Constant Current Voltage
Access Ampace JP30 constant-current discharge curves in Voltt to size your pack against the voltage window your system actually needs. (Chart shown is illustrative, not JP30 data.)
Constant Current Temperature
Access Ampace JP30 thermal discharge data in Voltt to specify cooling and cell spacing before you commit to a pack layout. (Chart shown is illustrative, not JP30 data.)
Pulse Power Behaviour
Access Ampace JP30 pulse power maps in Voltt to set peak current limits and parallel count for your worst-case load. (Chart shown is illustrative, not JP30 data.)
Dynamic Profile Response
Access Ampace JP30 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 JP30 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 Ampace JP30 with similar Cylindrical 18650 cells offering comparable capacity and performance characteristics.
Model
Capacity
Max Discharge
Typical Use
Access Cell Data
Manufacturer Background
Ampace
Ampace is a Chinese high-power lithium-ion cell manufacturer
Ampace was established in 2021 in Xiamen as a joint venture between CATL and Amperex Technology Limited, combining automotive-scale manufacturing with consumer cell engineering. The company produces high-power cylindrical cells in the 18650 and 21700 formats, sold under its Jumbo Power series, alongside prismatic cells for residential and commercial energy storage. Its cells are used in electric two-wheelers and light electric vehicles, power tools, robotics, drones and home storage systems, where sustained discharge and fast charge acceptance set the design limit. Manufacturing is concentrated at a large purpose-built site in Xiamen. Ampace is one of the faster-growing suppliers of high-rate cylindrical cells outside the established power-cell manufacturers.
Frequently Asked Questions
What is the capacity and voltage of the Ampace JP30?
The Ampace JP30 has a nominal capacity of 3 Ah and a nominal voltage of 3.7 V, providing 11.1 Wh of energy per cell.
What is the maximum continuous discharge capability of the Ampace JP30?
The Ampace JP30 supports continuous discharge rates up to 56 A, delivering a power density of 4,144 W/kg.
How much does the Ampace JP30 weigh and what is its volume?
The cell has a mass of 50 g and a volume of 17.6 cm³.
In which industries is the Ampace JP30 commonly used?
The Ampace JP30 is used across drones, motorsports, e-mobility, applications that demand sustained high current.
How does the Ampace JP30 compare with the FEB 30S?
Comparing the Ampace JP30 with the FEB 30S: capacity 3 Ah against 3 Ah; maximum continuous discharge 56 A against 30 A; energy density 222 Wh/kg against 216 Wh/kg; mass 50 g against 50 g. Both datasheets can be compared side by side in The Voltt.
What chemistry and format is the Ampace JP30?
The Ampace JP30 is a cylindrical 18650 cell with a Ni-based cathode. It has a nominal voltage of 3.7 V and a volume of 17.6 cm³. Its full datasheet is free to view in The Voltt.
