Rechargeable military lithium-ion battery 2 VL 34570 Extreme performance in demanding military environments The battery is assembled from two VL 34570 Saft lithium-ion cells connected in series (2s1p configuration) and protected by a specific electronic monitoring circuit. Benefits Electrical characteristics l Extended Nominal voltage (under 1.1 A at 20°C) autonomy and life operating temperature range with unrivalled low temperature performance l Recommended for ruggedized designs l Easy integration into compact and light systems l Maintenance-free lLight weight l Wide Key features l Electronic protection against charger faults l Very high energy density l Excellent charge recovery after long storage, even at high temperature l Long cycle life (over 70 % initial capacity after 500 cycles 100 % DoD) l Restricted for transport (Class 9) l Components cells with built-in circuit breaker, shut-down separator and safety vent l Recommended Saft chargers EcMC2 250 and EcMC2 350 l Compatible with OEM or “Universal” military battery chargers l Direct replacement for the BA-5800 primary Li-SO2 battery l Made in the EU Main applications l GPS-PLGR +96 (small lightweight GPS Receiver) l CP-1995 Battlefield computer l NBC Respirators l Night vision equipment l AN/PSN-10 July 2010 7.4 V Typical capacity at 20°C (under 1.1 A 5.4 V cut-off) 5.4 Ah Nominal energy 40 Wh Mechanical characteristics Height (max) 129 mm (5.08 in) Diameter (max) 35.5 mm (1.40 in) Typical weight 265 g (9.35 oz) Volume (max) 128 cm3 (7.81 cu. in) Operating conditions Charge method Max. recommended charge current Charge temperature range* Time at 20°C Max. recommended continuous discharge current Pulse discharge current Discharge cut-off voltage Constant Current/Constant Voltage 2.7 A at 20°C - 20°C to + 60°C (- 4°F to + 140°F) 3 to 4 hours under C/2 (2.7 A) constant 4 A at 20°C up to 10 A 5.4 V Discharge temperature range - 40°C to + 60°C (- 40°F to + 140°F) Operating temperature range - 25°C to + 60°C (-13°F to + 140°F) NSN 6140 14 559 7056 Part number 08034L *For optimised charging below 0°C, + 60°C and discharging at - 40°C, consult Saft. 2 VL 34570 Technology Protection circuit l Graphite-based l l Lithium l negative electrode Cobalt oxide-based positive electrode lElectrolyte: organic solvents l Built-in redundant safety protections l Battery assembled from two cylindrical VL 34570 cells in series with an electronic protection circuit l l l Protection against over voltage (resettable) Protection against under voltage (resettable) Protection against over current during discharge End of discharge equalising Internal thermistor for temperature detection Typical discharge profiles (1.1 A - C/5 rate) at various temperatures 9.0 8.5 Built-in protection devices ensure safety in case of: lExposure to heat l Exposure to direct sunlight for extended periods of time lShort circuit lOvercharge lOverdischarge l Shrapnel penetration Voltage (V) 8.0 + 60°C 7.5 - 30°C 7.0 + 20°C - 40°C 6.5 6.0 5.5 5.0 0 1 2 3 4 5 6 Capacity (Ah) When handling Saft VL batteries: l Store in a dry place at a temperature preferably not exceeding 30°C l For long-term storage, keep the battery preferably within a (30 ± 15) % state of charge Saft Specialty Battery Group 12, rue Sadi Carnot 93170 Bagnolet - France Tel.: +33 (0)1 49 93 19 18 Fax: +33 (0)1 49 93 19 69 313, Crescent Street Valdese, NC 28690 - USA Tel.: +1 (828) 874 41 11 Fax: +1 (828) 879 39 81 www.saftbatteries.com 9.0 90 80 8.0 C/2 Volts 7.0 C/5 Volts 70 6.0 60 5.0 50 4.0 C/2 (2.7 A) 3.0 40 C/5 (1.1 A) 30 2.0 20 1.0 10 0 0.0 0 1 2 3 4 Charge time (hours) Doc. No 54080 -2 -0710 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. Société anonyme au capital de 31 944 000 RCS Bobigny B 383 703 873 Produced in the UK by Arthur Associates Limited. 5 6 7 State of Charge (%) Transportation and storage 100 10.0 Voltage (V)/Current (A) not solder directly to battery terminals lDo not disassemble l Do not remove the protection circuit lDo not incinerate Charge characteristics at + 20°C (C/2 and C/5 rates) l Do