Nanophosphate® Lithium-ion Cell

*10 cell minimum

The ANR26650M1-B is the next generation of A123 Systems’ pioneering 26650 cylindrical cell, now with greater power and energy density and lower impedance. This versatile lithium-ion cell is suitable for a wide variety of applications and system designs. Proven performance in the toughest conditions, combining durability, reliability and safety, the ANR26650 cell offers an excellent combination of price-performance.


  • 120A pulse discharge
    (10 seconds)
  • Environmentally-friendly cell chemistry
  • Excellent calendar life, 10X cycle life vs. conventional lithium-ion
  • FAA TSO certified units available
  • Excellent abuse tolerance and superior cycle life from A123’s patented Nanophosphate® lithium-ion chemistry
  • High power with over 2,600 W/kg and 5,800 W/L
  • High usable energy over a wide state of charge (SOC) range

The A123 Nanophosphate® Lithium-ion Advantage

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Superior power by weight or volume in a cost effective solution


Nanophosphate® is stable chemically, providing the foundation for safe systems


Excellent calendar and cycle life with consistent performance over extended use


Higher useable energy means greater battery utilization and lower cost

Technical Specifications

Model Number ANR26650M1-B
Dimensions 26 x 65mm
Weight 76g
Power >2,600 W/kg and 5,800 W/L
Capacity 2.5Ah (nominal) / 2.3Ah (minimum)
Voltage 3.3V (nominal)
Internal Impedance 6 (1kHz AC typical, mΩ)
Standard Charge Method
2.5V to 3.6V CCCV, 60 min
Recommeded Fast
Charge Current To 80% SOC
4C to 3.6V CC, 12 min
Maximum Continuous Discharge 50A
Maximum Pulse Discharge 120A (10 seconds)
Temperature -22° F to 158° F (-30° C to 65° C) Operating
Certification FAA TSO certified units available
Designed and Manufactured A123 Systems (ANR26650M1-B)