TMTM EagleEaglePicherPicher Carefree CF-12V7.2 SPECIFICATIONS CF-12V7.2 Nominal Voltage .................................................. 12V Nominal Capacity at 77F (25C) Voltage readings are per cell 20 Hour Rate (0.36 amps to 1.75 volts)........ 7.20 ampere hours 10 Hour Rate (0.67 amps to 1.75 volts)........ 6.70 ampere hours 5 Hour Rate (1.22 amps to 1.75 volts)........ 6.10 ampere hours 1 Hour Rate (4.10 amps to 1.60 volts)........ 4.10 ampere hours 1/2 Hour Rate (7.56 amps to 1.60 volts)........ 3.78 ampere hours Max. Physical Size: Length .................................... 5.94 inches (151mm) Width ........................................ 2.56 inches (65mm) Height (excluding terminals) ...... 3.74 inches (95mm) Height (including terminals) .... 3.98 inches (101mm) Weight .......................................... 5.86 lbs (2.66 kg) Energy Density (20 Hour Rate) ........................ 1.54 watt hrs/cu in PRODUCT SCHEMATIC (20 Hour Rate) ........................ 14.79 watt hrs/lbs Operating Temperature Range Discharge ...... -60F to +140F (-51C to +60C) Charge .............. 0F to +120F (-18C to +49C) Recharging Methods 5.94 Float Charging: Constant Potential Source of (151) 13.6 to 13.8 volts continuously. Routine Charging: Constant Potential Source of 2.56 14.5 to 14.9 volts with a charging current of (65) 2.8 ampere maximum. Terminal: Standard is tin plated brass, positive terminal is 0.030 stock by 0.187 wide, negative terminal is 0.030 stock by 0.187 wide, mates with Amp Faston series or equal. Case Material: ABS 3.98 3.74 (101) (95) Above data are average values which can be obtained within 3 charge/discharge cycles. These are not minimum values. MAINTENANCE-FREE RECHARGEABLE BATTERIESTMTM EagleEaglePicherPicher Carefree CF-12V7.2 Charge Voltage per Cell vs. Temperature 2.7 Deep Cyclic Charging 2.6 Charging vs Temperature Shallow Cyclic Charging 2.5 The charging of Carefree batteries is best accomplished in a temperature range of 60F Float Charging to 90F. Charging within this temperature range requires no temperature compensation. 2.4 For applications over a wider temperature range, charging voltage must be changed as a 2.3 function of temperature. (see chart at right) 2.2 Capacity vs Temperature o -20 -10 0 10 20 30 40 50 ( C) o -4 -14 32 50 68 86 104 122 ( F) AMBIENT TEMPERATURE The efficiency of the lead-acid system decreases as the temperature decreases and increases Capacity as Affected by Temperature as temperature increases from room temperature (77) as illustrated. These four curves VARIOUS RATES OF DISCHARGE 1 shown are based on discharges at the 20 hour, 5 hour, 1 /2 hour and 1 hour rates. 110 100 20 hr. 90 Self-Discharge Characteristics 80 5 hr. High temperature increases the rate of self-discharge of all battery systems but even in 70 this respect, the lead-calcium battery is perhaps least affected. In general, the rate of 60 1 1 /2 hr. 1 hr. 50 self-discharge can be expected to double for each 20F rise in temperature above 70F. 40 30 Battery Operating Conditions & Cautions 20 10 Battery contains toxic material (lead) and corrosive fluid (sulfuric acid) Charging can 0 o -40 -20 0 20 40 60 80 100 120 140 ( F) produce explosive gases Do not charge in gas tight enclosures Charge battery in a o -40 -29 -18 -7 4 16 27 38 60 ( C) 49 TEMPERATURE well-ventilated area away from sparks, flames or smoking Use approved voltage Typical Voltage Characteristic (77F) controlled charger Do not short-circuit battery terminals, as this can cause an explosion or DISCHARGE CURVE fire Keep batteries and chargers away from children Charge battery as soon as possible 13.0 12.0 after use Do not store battery in discharged state Do not puncture, disassemble, mutilate 11.0 or incinerate MUST BE RECYCLED OR DISPOSED OF PROPERLY 1.22A 0.67A 0.36A 10.0 7.56A 4.10A 9.0 Installation Care 8.0 All CAREFREE batteries are carefully assembled and with proper charging will provide 0 123 5 10 20 30 60 2 3 5 10 20 30 excellent service. When placing the battery into service it must be inspected to make sure min. hrs. DISCHARGE TIME that the battery has not been damaged by rough handling. If the unit has been damaged, Typical Self-Discharge Characteristics there is a possibility of a loss of a small amount of sulfuric acid electrolyte and possible corrosion of adjacent components. Any sulfuric acid can cause severe burns to the skin 100 and eyes. If contact is made with a damaged battery, immediately wash the contacted area 80 with water for at least 5 minutes. When installing the battery in equipment, ventilation must 60 o be provided. Toward the end of charge and under overcharge conditions, hydrogen and 40 F o 4 C o o o 100 F 80 F 60 F o o o 38 C 27 C 16 C oxygen gas can be generated. If this gas is allowed to accumulate in the enclosure and a 40 spark is introduced, an explosion could result. 20 The specifications on this sheet may be changed by EaglePicher Technologies, LLC, without notice. 0 2 4 6 8 10 12 14 STORAGE TIME - MONTHS TM EaglePicher Commercial Power Solutions Carefree P.O. Box 47 Joplin, MO 64802 Tel: (800) 201-0215 or (417) 659-9635 Fax: (417) 626-2078 E-mail: inquiry.carefree eaglepicher.com Web site: www.eaglepicher.com (AMPERE HOURS) PERCENTAGE OF NOMINAL CAPACITY BATTERY VOLTAGE (V) VOLTS PER CELL PERCENTAGE OF FULL CAPACITY