1、 INCH - POUND MIL - PRF - 49471/12A(CR) 30 November 2000 Superseding MIL - PRF - 49471/12(ER) 2 June 1995 PERFORMANCE SPECIFICATION SHEET BATTERY, NON - RECHARGEABLE, HIGH PERFORMANCE, BA - X093/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-49471/12A(CR) 2 NOTES : 1. All dimensions are in inches. 2
4、. Tol erances, unless otherwise specified, are + 0.015 for three - place decimals and + 0.01 for two -place decimals. 3. Insertion Force: 12 pounds MAX. Withdrawal Force: 3 pounds MIN. 4. Socket requirements to be certified in the First Article Report. REQUI REMENTS : Dimensions and configuration: S
5、ee Figure 1. Maximum voltage: 29.7 volts. Cut - off voltage (for capacity): 18.00 volts. Terminals: Flat plate type, fiberglass female socket connector with two push in terminals per Figure 1, with no obstructi on of any holes. Weight (maximum): 2.15 pounds (975 grams). Battery short circuit test: A
6、pplicable. Charge protection: Applicable. High temperature protection: Applicable. Complete discharge device: Applicable. State of Charge Indicator: Not ap plicable. Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking perm
7、itted without license from IHS-,-,-MIL-PRF-49471/12A(CR) 3 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 Requirements in Hour
8、 s to 18.00 Volts I 3.4 L 1.7 H 6.8 HT 5.5 LT 1.6 IT 3.1 LR1 49.0 Initial voltage delay: During the I, H, HT, and IT discharge tests, initial voltages below the 18.00 volt minimum voltage cannot exceed a 5.0 second duration. During L and LT di scharge tests, initial voltage below 18.00 volts cannot
9、exceed a 60.0 second duration. METHODS OF EXAMINATION AND TESTS : Capacity tests: (1) Storage: Details on storage conditions for all capacity tests are described in the basic specification. (2 ) Discharge: Cells (forced discharge): Two cells shall be discharged at 1.0 ampere at 70 + 5 o F to 2.0 vol
10、ts. Each discharged cell shall then be connected in series to eight fresh cells. Each string shall be discharged at 1.0 ampere at 70 + 5 o F for 3.4 hou rs. Batteries: For all capacity tests, except the LR1, H and HT, the batteries shall be discharged at 1.0 ampere constant current to cut - off volt
11、s (zero volts for the I test). For the H and HT capacity tests, the batteries shall be discharged through 1. 0 ampere constant current for five minutes followed by open - circuit for five minutes. This cycle shall be repeated until the closed - circuit voltage reaches cut -off volts. For the LR1, ba
12、tteries shall be discharged at 75 milliamperes to 18.5 volts followe d by 2.5 watts to 3 volts. Forced Discharge: After discharge to zero volts on the I capacity test, batteries shall be force discharged at 1 ampere for a minimum of 10 minutes. Copyright Communications - Electronics Command Provided
13、 by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-49471/12A(CR) 4 Overload test: Batteries shall be discharged at 2.0 amperes. Abuse test, pr edischarge: Batteries shall be discharged at 1 ampere for 1.7 hours. Abuse test, pulse
14、 discharge: Batteries shall be discharged at 1.4 amperes for 1 minute followed by 0.9 amperes for 4 minutes, cycled continuously. Closed - circuit voltage (battery and cell string): Load resistance of 18 ohms shall be used between the battery terminals. Voltage shall be 18.0 volts or greater within
15、ten seconds. Cell closed circuit voltage: Load resistance of 2 ohms shall be used. Voltage shall be above 2.0 volts wit hin 5 seconds. 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 - 12 ) Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
