1、 INCH - POUND MIL - PRF - 49471/11A(CR) 30 November 2000 Superseding MIL - PRF - 49471/11(ER) 2 June 1995 PERFORMANCE SPECIFICATION SHEET BATTERY, NON - RECHARGEABLE, HIGH PERFORMANCE, BA - X800/U This specificatio n is approved for use within Communications Electronics Command, Department of the Ar
2、my, and is available for use by all Departments and Agencies of the Department of Defense. The requirements for acquiring the product herein shall consist of this specifi cation and MIL -PRF - 49471(CR). Figure 1. Battery dimensions and terminal markings . AMSC N/A 1 of 4 FSC 6135 DISTRIBUTION STATE
3、MENT A . Approved for public release;distribution 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-49471/11A(CR) 2 NOTES : 1. All dimensions are in inches. 2.
4、 Tol erances, unless otherwise specified, are + 0.004 for decimals. 3. Electrical terminal contacts are 0.01 inches thick Minimum. This shall be certified in the First Article Test Report. REQUIREMENTS : Dimensions and configuration: See Figure 1. Maximum voltage: 6.60 volts. Cut - off voltage for c
5、apacity: 4.00 volts. Weight (maximum): 0.72 pound (327 grams). Battery short circuit test: Applicable. Charge protection: Applicable. High temperature protection: Applicable. Complete discharge device: Applicable. State of Charge Indicator: Not applicable. Capacity tests: When the battery is tested
6、in accordance with the method of examination and tests of this specification, the minimum capacity requirements shall be as specified below: Capacity Test Minimum Capacity Requirements in Hours to 4.00 volts I 3.2 L 1.7 H 5.6 HT 5.4 LT 1.5 IT 2.8 LR1 48.0 Copyright Communications - Electronics Comma
7、nd Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-49471/11A(CR) 3 Initial voltage delay: During the I, H, HT, and IT discharge test, initial voltage below 4.00 volts cannot exceed a 5.0 second duration. Du ring the L
8、and LT discharge tests, initial voltages below 3.80 volts cannot exceed a 60.0 second duration. METHODS OF EXAMINATION AND TESTS : Capacity test: (1) Storage: Details on storage conditions for all capacity tests are specified in the basic s pecification. (2) Discharge: Cells (forced discharge): Two
9、cells shall be discharged at 2.0 amperes at 70 + 5 o F to 2.0 volts. Each discharged cell shall then be connected in series to one fresh cell. Each string shall be discharged at 2.0 amperes at 70 + 5 o F for 3.2 hours. Batteries: For all capacity tests, except the LR1, H and HT, the batteries shall
10、be discharged at 2.0 amperes constant current to cut - off volts (zero volts for the LR1 test). For the H and HT capacity tests the batteries shall be dis charged through 2.0 amperes constant current for five minutes followed by open circuit for five minutes. This cycle shall be repeated until the c
11、losed - circuit voltage reaches cut -off volts. For the LR1, the batteries shall be discharged at 135 milliampere s to 4.5 volts, then at 1.1 watts to 1 volt. Forced Discharge: After discharge to zero volts on the I capacity test, batteries shall be forced discharged at 2.0 amperes for a minimum of
12、5 minutes. Overload test: Batteries shall be discharged at 4.0 a mperes. Abuse test, predischarge: Designated samples shall be discharged at 2.0 amperes for 1.6 hours. Abuse test, pulse discharge: Batteries shall be discharged at 2.5 amperes for 1 minute followed by 1.8 amperes for 4 minutes, cycled
13、 continuously to cut - off voltage. Closed - circuit voltage test (battery and cell string): Load resistance of 2 ohms shall be used. Voltage shall be above 4.00 volts within 10 seconds. Cell closed circuit voltage test: Load resistance of 1 ohm shall be used. Voltage sh all be above 2.0 volts withi
14、n 5 seconds. Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-49471/11A(CR) 4 Marginal notations are not used in this revision to identify changes with respect to the previous issue due to the extent of the changes. Custodian: Preparing Activity: Army CR Army - CR (Project 6135 - 0417 - 11) Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
