Cylindrical 4695 High-Power Cell
Reliance RP450
Cylindrical 4695 cell delivering 45 Ah capacity and 135 A maximum discharge rate.
Overview
The Reliance RP450 is a high-power lithium-ion cylindrical 4695 cell designed for applications that demand very high continuous discharge rates. Released in 2026 and with the manufacturer based in China, this cylindrical 4695 cell delivers 45 Ah capacity and 162.0 Wh of energy at a nominal voltage of 3.6 V, with a maximum continuous discharge capability of 135 A, making it well suited to high-power systems operating under aggressive discharge profiles.
Key Features
High discharge rate: 135 A continuous (3.0 C)
Charging rate: 1.0 C charging rate
Applications: aviation, motorsports, e-mobility
Technical Specifications from the Manufacturer
Parameter
Manufacturer
Reliance
Model
INR4695-RP450
Type
Li-ion
Form factor
Cylindrical 4695
Country of origin
China
Release year
2026
Nominal voltage
3.6
Energy capacity [Wh]
162
Capacity [Ah]
45
Gravimetric energy density [Wh/kg]
Gravimetric power density [W/kg]
Max continuous discharge [A]
135
Volume [cm³]
Mass [g]
Positive electrode (cathode)
Ni-based
Negative electrode (anode)
Value
Applications & Use‑Cases
The Reliance RP450 is well suited to the following applications due to its cylindrical 4695 form factor and high power performance.
Aviation: Requires high specific energy for extended flight duration, high power-to-weight ratio for climb performance, and reliable operation across wide temperature ranges at altitude.
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.
.jpg)
Performance & Model Data
Below are modelled performance metrics for the Reliance RP450 across key indicators, including constant current behaviour, rate capability, temperature dependence, and available power under representative drive cycle conditions.
Constant Current Voltage
The Reliance RP450 constant-current plots reveal voltage behaviour under steady loads, ideal for analysing efficiency.
Constant Current Temperature
The Reliance RP450 constant-current plots reveal temperature behaviour under steady loads, ideal for analysing thermal response.
Pulse Power Behaviour
The Reliance RP450 pulse power map evaluates short-duration load responses, allowing engineers to determine the maximum available power as a function of state of charge and temperature.
Dynamic Profile Response
The Reliance RP450 mission-profile plots simulate real-world duty cycles, showing how the cell manages dynamic power demands and temperature changes.
.png)
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 Reliance RP450 with similar Cylindrical 4695 cells offering comparable capacity and performance characteristics.
Model
Capacity
Max Discharge
Typical Use
Access Cell Data
Manufacturer Background
Reliance
Reliance is a battery manufacturer producing cylindrical lithium-ion cells
Reliance New Energy is developing lithium-ion battery manufacturing capabilities as part of India's growing energy storage and electric vehicle ecosystem. Their entry into 21700 cylindrical cell production represents India's strategic push toward domestic battery manufacturing self-sufficiency. Reliance leverages its industrial infrastructure and investment capacity to establish advanced battery production facilities targeting India's expanding EV market and energy storage requirements. The company's battery strategy encompasses technology partnerships, materials sourcing, and manufacturing localization to reduce import dependence. Reliance's 21700 cells aim to meet automotive specifications for Indian and global markets, supporting the country's electrification goals. As India emerges as a significant battery market, Reliance's manufacturing capabilities position them as a key domestic supplier for electric mobility transformation.
Frequently Asked Questions
What is the capacity and voltage of the Reliance RP450?
The Reliance RP450 has a nominal capacity of 45 Ah and a nominal voltage of 3.6 V, providing 162.0 Wh of energy per cell.
What is the maximum continuous discharge capability of the Reliance RP450?
The Reliance RP450 supports continuous discharge rates up to 135 A.
How much does the Reliance RP450 weigh and what is its volume?
Physical dimensions are not specified for this cell.
In which industries is the Reliance RP450 commonly used?
The Reliance RP450 is used across aviation, motorsports, e-mobility, applications that demand high power delivery and reliable performance across demanding duty cycles.
What is The Voltt and how does it accelerate cell evaluation?
The Voltt is About Energy's digital cell simulation platform that models electrochemical and thermal performance, reducing evaluation time by up to 70% compared to laboratory testing.
What data can be extracted using The Voltt?
Engineers can simulate and visualise voltage, temperature, and power responses under constant-current or mission-profile conditions, generating detailed discharge plots to support accurate cell comparison and validation.
