Molicel M65A 21700 6500mAh 26A Battery

Key Features 6500mAh High Capacity: More energy per cell means longer runtimes and fewer cells needed to hit your pack targets — a genuine advantage in weight-sensitive builds. High-Output Performance: 26A continuous discharge gives the M65A real-world power capability that goes well beyond what most high-energy cells can sustain. Exceptional Energy Density: At 322 Wh/kg gravimetric and 943 Wh/L volumetric energy density, this is one of the most energy-dense 21700 cells you can put in a pack. Low Impedance Design: AC impedance under 14.5mΩ keeps voltage sag controlled and heat generation minimal, even under sustained discharge conditions. Professional Integration Cell: Unprotected flat-top format means your BMS is in charge — exactly how a serious pack build should work. Overview If your build lives and dies by energy density, the Molicel INR-21700-M65A deserves a hard look. With a typical capacity of 6500mAh and gravimetric energy density of 322 Wh/kg, it pushes the boundaries of what a cylindrical 21700 cell can store in a 74.5g package. The 943 Wh/L volumetric density means you're packing serious energy into every cubic centimetre of your pack. What makes the M65A more than just a high-capacity cell is its ability to back that energy up with a 26A continuous discharge rating — strong performance for a cell in this class. A wide discharge temperature range of -30°C to 60°C adds real-world versatility for applications that operate across changing environmental conditions. As with any unprotected lithium-ion cell, the M65A is designed for use within a professionally engineered battery pack incorporating a suitable BMS and thermal management system. Manufactured by E-One Moli Energy, Molicel's INR-21700-M65A is a cell built to perform where energy density matters most. Applications / Uses Electric vehicles and e-mobility platforms where maximizing range per kilogram is a core design goal Custom and professional battery pack builds prioritizing energy density and per-cell capacity High-capacity power tool and heavy-duty equipment packs requiring extended runtime between charges Robotics and UAV systems that benefit from the M65A's strong capacity-to-weight ratio Portable energy storage and backup power applications needing maximum runtime in a compact form factor Specifications Brand: Molicel Model: INR-21700-M65A Battery Type: 21700 Lithium-Ion (INR) Typical Capacity: 6500mAh (23.4Wh) Minimum Capacity: 6400mAh (23.0Wh) Nominal Voltage: 3.6V Full Charge Voltage: 4.2V Discharge Cutoff Voltage: 2.5V Max Continuous Discharge: 26A (90°C surface cut-off) Standard Charge Current: 6.5A Standard Charge Time: 1.75 hours AC Impedance (30% SOC): ≤14.5mΩ DC Impedance (50% SOC): ≤25mΩ Gravimetric Energy Density: 322 Wh/kg Volumetric Energy Density: 943 Wh/L Charge Temperature: 0°C to 60°C Discharge Temperature: -30°C to 60°C Shape: Cylindrical Can Material: Steel Battery Top: Flat Top Protected: No Diameter: 21.70mm (Max) Height: 71.00mm (Max) Weight: 74.5g (Max) View the Molicel INR-21700-M65A Data Specification Sheet