Amprius SiCore™ high-energy 21700 lithium-ion cell

6,500mAh of capacity in a 21700 cell.

The Amprius SA112 is an ultra-high-energy 21700 lithium-ion cell designed for applications where runtime, battery capacity and energy density are the priority.

With 6,500mAh typical capacity, approximately 22.5Wh per cell, and up to 315Wh/kg gravimetric energy density, the SA112 provides substantially more stored energy per cell than traditional 5.0Ah-class 21700 cells.

The SA112 is rated for 13A maximum continuous discharge and up to 26A pulse discharge for ≤30 seconds, making it particularly well suited for professionally engineered e-bike, mobility, robotics, drone, industrial and custom battery systems where maximum runtime is more important than extreme discharge current.

6,500mAh typical • 13A max continuous • 26A pulse • 3.46V nominal • Flat top / unprotected

Why builders choose the Amprius SA112

6,500mAh ultra-high capacity

Amprius specifies 6,500mAh typical capacity and 6,350mAh minimum capacity, providing approximately 22.5Wh of energy from a single 21700 cylindrical cell.

315Wh/kg energy density

The SA112 is designed around Amprius SiCore™ technology and reaches approximately 315Wh/kg including cell packaging.

More runtime per parallel group

High cell capacity can allow pack designers to achieve greater range or runtime without increasing the number of parallel cells.

13A continuous output

A 13A maximum continuous discharge rating provides useful power capability while maintaining the SA112's focus on maximum energy density.

ULS battery integration support

United Lithium Solutions can supply cells as well as custom battery tabs, insulation, connectors, BMS integration and complete battery-pack engineering.

AMPRIUS SA112 SPECIFICATIONS

Manufacturer / Model: Amprius Technologies / SA112

Technology: Amprius SiCore™

Cell Format: 21700 cylindrical lithium-ion

Cathode: NMC

Typical Capacity: 6,500mAh

Minimum Capacity: 6,350mAh

Typical Energy: 22.5Wh

Minimum Energy: 21.97Wh

Nominal Voltage: 3.46V

Maximum Charge Voltage: 4.20V

Discharge Cutoff Voltage: 2.50V

Standard / Typical Charge Current: 3.25A (0.5C)

Maximum Charge Current: 4.55A (0.7C)

Maximum Continuous Discharge: 13A (2C)

Maximum Pulse Discharge: 26A (4C), ≤30 seconds

AC Internal Resistance: ≤22mΩ at 1kHz / 30% SOC

Charge Temperature: 0°C to 45°C

Discharge Temperature: -20°C to 60°C

Storage Temperature: -20°C to 30°C

Cycle Life: 500 cycles to 80% SOH under Amprius +3.0A / -7.5A, 4.2V–2.75V test conditions

Partial-Depth Cycle Life: 1,000 cycles to 90% SOH under 0.5C charge / 1C discharge, 70% DOD conditions

Energy Density: 315Wh/kg gravimetric

Volumetric Energy Density: 860Wh/L

Diameter: 21.50 ±0.20mm

Height: 70.75 ±0.25mm

Weight: 72 ±1g

Terminal: Flat top

Protection: Unprotected industrial cell

BEST APPLICATIONS

• Long-range e-bike battery packs
• Electric mobility battery systems
• High-capacity custom lithium battery packs
• Robotics
• UAV and drone battery systems
• Portable energy systems
• Industrial equipment
• OEM battery assemblies
• Applications prioritizing energy density and runtime

IS THE SA112 RIGHT FOR YOUR BUILD?

Strong fit for:

• Applications needing maximum capacity from a 21700 footprint
• Long-range battery packs
• Designs operating below 13A continuous per parallel cell
• Battery systems where weight and energy density are important
• Professionally engineered commercial and OEM packs

Consider a higher-power cell when:

• Your design requires more than 13A continuous discharge per cell
• Extreme acceleration or high peak current is more important than runtime
• Your pack uses very few cells in parallel
• The application requires power-tool-class discharge rates

For higher-current applications, ask ULS about cells such as the Samsung 50S, Molicel high-power series or LinkData INR21700S-60P.

IMPORTANT LITHIUM-ION CELL SAFETY

This is an unprotected industrial lithium-ion cell, not a finished consumer battery.

Use only in a professionally engineered battery pack with an appropriate BMS or protection circuit, over-current protection, adequate electrical insulation and proper thermal management.

Never carry or store loose cells where metal objects can short the terminals.

Do not use cells with damaged wraps, dents, corrosion, leaks or abnormal heat.

Never exceed manufacturer voltage, charge-current, discharge-current or temperature specifications.

Not intended for vaping or e-cigarette applications.

Actual battery-pack performance depends on cell configuration, BMS settings, thermal management, wiring, interconnect resistance, operating temperature, cell age and application.

NEED CELLS, COMPONENTS OR A COMPLETE BATTERY PACK?

Send United Lithium Solutions your:

• Required voltage
• Capacity
• Continuous current
• Peak current
• Maximum dimensions
• Connector requirements
• Production quantity

ULS can supply cells, custom tabs, insulation, wiring, connectors, BMS solutions and professionally assembled custom lithium-ion battery packs.