1、 INCH - POUND MIL - PRF - 49471/14A(CR) 30 November 2 000 Superseding MIL - PRF - 49471/14(CR) 20 April 1998 PERFORMANCE SPECIFICATION SHEET BATTERY, NON - RECHARGEABLE, LITHIUM MANGANESE DIOXIDE, HIGH PERFORMANCE, BA - 5374/U This specification is approved for use wi thin the Communications Electro
2、nics Command, Department of the Army, 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 specification sheet and MIL - PRF - 49471(CR). Figure 1. Battery dimensions and terminal markings . AMS
3、C N/A Page 1 of 3 FSC 6135 DISTRIBUTION STATEMENT A. Approved for public release; distributi on 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 - 49471/14A
4、( CR) 2 NOTES : 1. All dimensions are in inches. Fractional tolerances are + 1/32” 2. +6V markings required on battery near or on the positive terminal. REQUIREMENTS : Dimensions and configuration: See figure 1. Maximum voltage: 6.6 volts Cut - off voltage for capacity: 4 volts Terminals: Flat surfa
5、ce (see figure 1). Weight (Maximum): 2.5 ounces (71 grams). Charge protection: Not applicable. Battery short circuit test: Applicable. High temperature protection: Applicable. Comp lete discharge device: Not applicable. State of Charge Indicator: Not applicable. Capacity tests: When the battery is t
6、ested 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 in Hours to 4.0 volts I 22 L 10 H 21 HT 18 LT 9 IT 21 LR1 48 Initial voltage delay: During all tests except the LR1,
7、 initial voltage below 4.0 volts cannot exceed a 0.1 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 - 49471/14A( CR) 3 METHODS OF EXAMINATION AND TEST
8、: (1) Storage: Details on storage conditions for all specified capacity tests are described in the basic specification. (2) Discharge Cells (Forced Discharge): Two cells shall be discha rged at 45 milliamperes at 70 + 5F to 2.0 volts. Each discharged cell shall then be connected in series with one f
9、resh cell. Each string shall then be force discharged at 45 milliamperes at 70 + 5F for 22 hours. Batteries: For all capacity tests except t he LR1, the batteries shall be discharged at 45 milliamperes constant current to cut - off volts (zero volts for the I test). For the LR1 test, batteries shall
10、 be discharged at 25 milliamperes to 4.5 volts, then at 0.4 watts to 3.5 volts. Forced Discharge: After the batteries have been discharged to zero volts on the I test, batteries shall be force discharged at 45 milliamperes for a minimum of 5 minutes. Overload: Batteries shall be discharged at 100 mi
11、lliamperes. Abuse test predischarge: Designated samples shall be discharged at 45 milliamperes for 11 hours. Abuse test, pulse discharge: Batteries shall be discharged at 90 milliamperes for 1 minute followed by 40 milliamperes for 4 minutes, cycled continuously to cut - off voltage. Closed circuit
12、vol tage (battery and cell strings): Load resistance of 90 ohms shall be used. Voltage shall be above 4.0 volts within 5 seconds. Cell closed circuit voltage: Load resistance of 45 ohms shall be used. Voltage shall be above 2.0 volts within 5 seconds. Ma rginal notations are not used in this revisio
13、n 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 - 14) Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
