1、 INCH - POUND MIL - PRF - 49471/7A(CR) 30 November 2000 Superseding MIL - PRF - 49471/7(ER) 2 June 1995 PERFORMANCE SPECIFICATION SHEET BATTERY, NON - RECHARGEABLE, HIGH PERFORMANCE, BA - X588/U This specification sheet is approved for use within Communications Electronics Command and is available f
2、or use by all Departments and Agencies of the Department of Defense. The requirements for acquiring the product herein shall consist of this spe cification and MIL -PRF - 49471 ( CR ). Figure 1. Battery dimensions . AMSC N/A 1 of 5 FSC 6135 DISTRIBUTION STATEMENT A . Approved for public release; dis
3、tribution is unlimited. Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-49471/7A(CR) 2 FIGURE 2. Battery Dimensions and Terminal Marking Copyright Communications - Electro
4、nics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-49471/7A(CR) 3 Stud, Posit ive Terminal Socket, Negative Terminal FIGURE 3. Battery Terminals NOTES : 1. All dimension are in inches. 2. Tolerances, unless o
5、therwise specified, are + .015 inch. 3. The battery connector shall be snap - on terminals per Figure 3 with p rotective shield (negative terminal) as shown in Figure 2 . 4. Terminal and voltage marking to be embossed or impressed. 5. Stud shall be of plated soft brass not less than 0.015 inches thi
6、ckness. 6. Socket shall be plated spring brass. REQUIREMENTS : Dimensions and configuration: See Figure 1 & 2 . Maximum voltage: 16.5 volts. Cut - off voltage (for capacity): 11.00 volts. Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduct
7、ion or networking permitted without license from IHS-,-,-MIL-PRF-49471/7A(CR) 4 Terminals: Snap - On type (see Figure 2 ). Weight (maximum): 0.98 pounds ( 445 grams). Battery s hort circuit test : Applicable. Charge protection : Applicable. High temperature protection: Applicable. Complete discharge
8、 device: Applicable. State of Cha rge Indicator: Applicable. Capacity tests: When the battery is tested in accordance with the methods of examination and tests of this specification, the minimum capacity test requirements shall be as specified below: Capacity Test Minimum Capacity Requ irements in H
9、ours to 11.00 Volts I 3.6 L 1.8 H 3.6 HT 3.1 LT 1.7 IT 3.3 LR1 53.0 Initial voltage delay: During the I, H, HT, and IT discharge tests, initial voltages below the 11.00 volt minimum voltage cannot exceed a 10 second duration. During L and LT discharge tests initial voltage below 10.00 volts cannot e
10、xceed a 2 0 second duration. Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-49471/7A(CR) 5 METHODS OF EXAMINATION AND TESTS : Capacity tests: (1) Storage: Details on stor
11、age conditions for all specified capacity tests are described in the basic specification (see 4.8.9). (2) Discharge: Cells (forced discharge) : Two cells shall be discharged at 0.8 amperes at 70 + 5 o F to 2.0 volts . Each discharged cell shall then be connected in series to four fresh cells. Each s
12、tring shall be discharged at 0.8 amperes at 70 + 5 o F for 3.6 hours . Batteries: For all capacity tests except the LR1, the batteries shall be discharged at 0.8 ampere s constant current to cut - off volts (zero volts for the I test). . For the LR1 test, batteries shall be discha rged at 65 milliam
13、peres to 11.25 volts followed by 1.1 watts to 1.5 volts. Forced Di s charge: After discharge to zero volts on the I capacity test, the batteries shall be force discharged at 0.8 amperes for a minimum of 10 minutes. Overload test: Batter ies shall be discharged at 1.6 amperes. Abuse test, predischarg
14、e: Designated samples shall be discharged at 0.8 amperes for 1.8 hours. Abuse test, pulse discharge: Batteries shall be discharged at 1. 0 amperes for 1 minute followed by 0. 72 amperes for 4 minutes, cycled continuously to cut - off voltage. Closed - circuit voltage (batteries and cell strings) : L
15、oad resistance of 13.75 ohms shall be used between terminals. Voltage shall be above 11.00 volts within 10 seconds. Cell closed circuit v oltage: Load resistance of 2.5 ohms shall be used. Voltage shall be above 2.2 volts within 5 seconds. Marginal notations are not used in this revision to identify
16、 changes with respect to the previous issue due to the extent of the changes. Custodian: Preparing Activity: Army - CR Army - CR (Project 6135 - 0417 - 07) Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
