Rechargeable Li-ion battery system BB 2847 8 V Rechargeable Lithium-ion (Li-ion) battery The BB 2847 battery is based on High Energy Li-ion technology. The battery is housed in a molded plastic case with dual terminal interface. The battery includes a built in electronic protection circuit with LCD hands-free fuel gage. Benefits ■■ Extended life and durabiity in rugged portable applications ■■ Wide operating temperature range ■■ Easy integration into military and civil applications Key Features ■■ Robust molded plastic case ■■ Built in protection circuitry ■■ 5-segment LCD Fuel Gage ■■ Dual I/O terminals ■■ Wide temperature range ■■ High rate capability ■■ High cycle life/low fade ■■ Non-restricted to Class 9 ■■ Battery is compatible with MIL compliant chargers Typical Applications ■■ Applications where BA 5847 and BA 5347 are used ■■ AN/PM-34 ■■ AN/PAS-13 ■■ AN/PRS-7 Electrical charachteristics Full charge voltage 8.3 V Operating voltage 7.2 V Cut-off voltage 5V Maximum constant current 7A Typical capacity at 10 W to 5 V cut-off 7.4 Ah / 53 Wh Recommended charge Constant current at C/2 rate(3.7A) with 8.3V limit End with timer or when current drops below 0.075 A Temperature range Operating / storage -30°C to +60°C / -22°F to +140°F Charging 0°C to +50°C /+32°F to +130°F Physical characteristics Maximum weight Length Width Height Battery case Metric Imperial 483 g 17 oz 64.8 mm 2.55 in 38.1mm 1.50 in 95.3 mm 3.75 in Plastic References Reference specifications MIL-PRF-32052/4 or Saft standard specification BB 2847 2.550 Typical discharge curves for C/2 (3.7 A) at various temps 9 -30 degC 1.500 -201 degC 8 25 degC 50 degC Voltage 7 6 5 3.750 4 0 1 2 3 4 5 6 7 8 Discharge Capacity(Ah) Dimensions (inches) 9 8 Built-in protection circuit 7 Voltage ■■ Against over current/short circuit ■■ Against over charge/ over discharge ■■ Against over heating ■■ Against charging outside the recommended temperature range Typical high rate discharge curve at 7 A 6 5 Built-in fuel gauge ■■ 5 segment LCD state-of-charge indicator 4 0 Rugged molded plastic case 8.0 Storage Handling ■■ Do not disassemble ■■ Do not remove the protection circuit ■■ Do not incinerate Amp hours ■■ Store in dry area not >30°C ■■ For long storage maintain battery at 15 - 50% state of charge 1 2 3 4 5 6 Discharge Capacity (Ah) 7 8 Cycle performance 10W discharge to 5 volts 80 7.5 75 7.0 70 6.5 65 6.0 60 5.5 55 5.0 50 4.5 Ah 4.0 45 Wh 40 3.5 35 3.0 30 2.5 25 2.0 20 1.5 15 1.0 10 0.5 5 0.0 0 25 50 75 100 125 150 175 200 225 250 Cycle Count Saft 12, rue Sadi Carnot 93170 Bagnolet France Tel.: +33 (0)1 49 93 19 18 Fax: +33 (0)1 49 93 19 69 www.saftbatteries.com Saft America, Inc. 313 Crescent St. Valdese, NC 28690 - USA Tel.: +1 (828) 874 4111 Fax: +1 (828) 874 3981 www.saftbatteries.com Doc N° 32044-2-0713 Edition: July 2013 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 0 Watt hours 3 Dual terminal system