M 51 Primary Li-MnO2 cell 3 V lithium manganese dioxide 2/3C-size spiral cell Saft’s M 51 cell is ideally suited for applications requiring high energy and long operating life, with stable voltage under high discharge in - 40°C / + 72°C environment. Benefits ■ ■ ■ ■ ■ ■ High drain / high pulse capability High voltage response, stable during most of the lifetime of the application even after long dormant periods High capacity at high current and low temperature Low self-discharge compatible with long operating life (less than 1% after 1 year of storage at + 20°C) Superior resistance to corrosion Low magnetic signature Key features ■ ■ ■ ■ ■ ■ ■ ■ Spiral construction Hermetic construction with glass-to-metal seal Stainless steel container Integrated safety vent Non-corrosive electrolyte Non-pressurized at room temperature Non-restricted for transport (6) Made in Germany Designed to meet all major quality, safety and environmental standards ■ ■ ■ ■ ■ Safety: UL 1642 (File MH 12609) Transport: Exempted from UN 3090 / UN 3091 (6) Quality: ISO 9001, Saft World Class Continuous program Environment: ISO 14001 Electrical characteristics (Typical values relative to cells stored up to one year at + 30°C max) Nominal capacity (at 30 mA, + 20°C, 2.0 V cut-off) (1) Open circuit voltage (at + 20°C) Nominal voltage (under 1 mA at + 20°C) Nominal energy (at 30 mA, + 20°C, 2.0 V cut-off) Pulse capacity (2) Recommended maximum continuous discharge current (3) Operating conditions Operating temperature range (4) Recommended Storage temperatures Allowable (5) Physical characteristics Diameter (max) Height for the tabbed version (max) Typical weight Li metal content ■ ■ ■ ■ ■ ■ Radio communications Utility metering Alarms and security systems ELTs, EPIRBs Tracking systems GSM/GPRS communication - 40°C / + 72°C (- 40°F / + 161°F) + 30°C (+ 86°F) max - 55°C to + 90°C (- 67°F / + 194°F) 26.2 mm (1.03 in) 35.3 mm (1.39 in) 38 g approx. 0.92 g Dependent upon current drain, temperature and cut-off. Dependent upon pulse characteristics, temperature, cell history and application. Higher rates are available under certain circumstances To maintain cell heating within safe limits. Battery packs may imply lower level of maximum current and may request specific thermal protection. Consult Saft. (4) Operating temperatures up to + 85°C can be achieved. Consult Saft. (5) Long time storage at high temperature may affect performances. Consult Saft. (6) Certain conditions regarding the packaging and maximum weight or amount apply, depending on the mode of transport. (1) (2) Typical applications 3.2 Ah 3.2 V 3.0 V 9.2 Wh up to 2.5 A 1.0 A (3) Termination & part numbers Cell voltage [V] 3 2.5 max. 35.3 mm 2 - 30°C - 15°C + 23°C + 60°C 1.5 0 max. 26.2 mm 10 + 1 mm 0.39” + 0.04” 10 + 1 mm 0.39” + 0.04” 3 mm 0.12” 3 mm 0.12” max. 35.3 mm 1.39” max. 35.3 mm 1.39” max. 26.2 mm 1.03” max. 26.2 mm 1.03” 10 + 1 mm 0.39” + 0.04” 10 + 1 mm 0.39” + 0.04” 2. 3.5 0.1 0.2 0.3 0.4 Discharge current [A] Discharge curves at 150 mA at various temperatures 3.5 Cell voltage [V] max. 26.2 mm 1.03” 3. max. 35.3 mm 1.39” max. 26.2 mm 1.03” max. 26.2 mm 1.03” 1. 3 mm 0.12” 3 mm 0.12” ■ Mid-discharge voltage vs. current at various temperatures 10 + 1 mm 0.39” + 0.04” ■ 3 mm 0.12” ■ max. 35.3 mm 1.39” max. 35.3 mm 1.39” 1. + tab (radial tab on positive terminal): 4142071403 2. C tab (radial tabs on positive & negative terminals) 4142071203 3. Z tab (radial tabs on positive & negative terminals): 4142071703 Other configuration available on request ■ 3 2.5 2 - 30°C Storage ■ - 15°C + 23°C + 60°C 1.5 The storage area should be clean, cool (preferably not exceeding + 30°C), dry and ventilated. 0 1 2 3 4 Discharge capacity [Ah] Warning ■ ■ ■ Fire, explosion and burn hazard. Do not recharge, short circuit, crush, disassemble, heat above + 100°C (+ 212°F), incinerate, or expose contents to water. Do not solder directly to the cell (use tabbed cell versions instead). Do not obstruct venting mechanism. Capacity vs. current at various temperatures 4 3 Capacity [Ah] ■ 2 1 - 30°C - 15°C + 23°C + 60°C 0 0 0.1 0.2 0.3 0.4 0.5 0.6 Discharge current [A] Saft 12, rue Sadi Carnot 93170 Bagnolet - France Tel. : +33 1 49 93 19 18 Fax : +33 1 49 93 19 64 www.saftbatteries.com Friemann & Wolf Batterietechnik GmbH Industriestr. 22, 63654 Büdingen - Germany Tel. : +49 (0) 6042 954 0 Fax. : +49 (0) 6042 954 190 Doc N°: 31117-2-1014 Edition: October 2014 Information in this document is subject to change without notice and becomes contractual only after written confirmation by Saft. Published by the Communications Department Photo credit: Saft Produced in FR by Soyouzgraphic