MILSATCOM Terminals Program Office; 50 Griffiss St, MITRE Bldg D; Hanscom AFB, MA 01731-1620

61 -- BATTERY CHARGER FOR THE PRODUCTIVITY RELIABILITY AVAILABILITY MANTAINABILITY (PRAM) PROGRAM SOL F19628-98-R-BATT DUE 072998 POC Peter Lewis, Contract Specialist, 781-271-6370; Joe Zimmerman, Contracting Officer, 781-271-6279 WEB: n/a, n/a. E-MAIL: Click Here to E-mail the POC, lewisp@hanscom.af.mil. This synopsis is a reissue of a market survey synopsis released on 19 May 1998. The MILSATCOM Terminal Programs Office (ESC/MC) at the Electronic Systems Center, Hanscom AFB, MA is seeking information to determine the availability of a state-of-the-art Battery Charger/Analyzer/Conditioner (hereto also referred to as the "battery charger") for use in charging nickel cadmium (Ni-Cd) and lead acid battery packs used in the MILSTAR Time Standard Module (TSM), Terminal Access Controller (TAC) and Atomic Frequency Time Reference (AFTR) line replaceable units (LRUs). For this application, the battery packs will be removed from the TSM, TAC and AFTR prior to being recharged/reconditioned. The TSM contains a battery pack consisting of twelve AA Ni-Cd cells. The nominal voltage of that TSM battery pack is 15 Vdc, with a capacity rating (at 0.2C) of 700 mAhr. Its nominal discharge current is 10 mA, and its maximum discharge current is 70 mA. It is specified over a temperature range of: (1) Storage: -40C to +55C degrees; (2) Discharge: -20C to +55C degrees; and, (3) Charge: 0C to +55C degrees. The TAC contains a battery pack consisting of one string of eight 1/2 AAA Ni-Cd cells and two strings of three D Ni-Cd cells each. The characteristics of the 1/2 AAA string are: (1) Nominal voltage: 9.6 Vdc; (2) Capacity: At C: 60 mAhr; at C/10: 70 mAhr; and (3) Output current (typical): 10 mA (@75C degrees). The operating temperature for the 1/2 AAA Ni-Cd cells and the D Ni-Cd cells is -- -40C to +70C degrees. The AFTR contains a battery pack consisting of eight sealed Lead-Acid cells. The nominal voltage of that AFTR battery pack is 16 Vdc, with a capacity rating: C=2.5 Ahr. The 20 hr rate (at 125 mA) is 2.7 Ahr. The 10 hr rate (at 250 mA) is 2.5 Ahr. The 1 hr rate (at 2.5 A) is 2.0 Ahr.It is specified over a temperature range of: (1) Storage -65C to +65C degrees; (2) Discharge: -65C to +65C degrees; and, (3) Charge: -40C to +65C degrees. The battery charger must possess the following characteristics: (1) Pulse Charging: The battery charger shall possess a pulse-charging feature. The pulses shall be positive pulses, interspersed with rest periods and negative pulses. The purpose of that type of charging algorithm is to maximize battery life, minimize cell heating during charging, provide for optimally fast charging times and eliminate battery memory effect. (2) Charge Cycles: The battery charger must be of such a design that the Ni-Cd battery packs contained in both the TSM and TAC shall be capable of undergoing a minimum of 900 charge/discharge cycles before the capacity of those battery packs drops below 80% of their rated capacity. (3) Battery Recovery: The battery charger shall have the capability to recover Ni-Cd battery packs that have undergone considerably less than 900 charge/discharge cycles, and whose capacity has dropped below 80% of their rated capacity due to the Ni-Cd battery memory effect. (4) Chrge Time: The battery charger must be of such a design that the time to condition and charge the Ni-Cd battery packs contained in both the TSM and TAC shall not exceed 6 hours. (5) Automatic Chemistry Recognition: The battery charger shall possess an automatic chemistry recognition capability. (6) Simultaneously Charge Multiple Battery Types: The battery charger shall be able to simultaneously charge up to six battery types (that is, chemistries, voltages and ampere hour types). (7) Range of AC and DC Voltages: The battery charger shall be capable of being operated over an input AC voltage range of 70 Vac to 260 Vac, at 47 Hz to 63 Hz and an input DC voltage range of 12 Vdc to 36 Vdc. (8) Electromagnetic Compatibility: The battery charger shall be of such a design that minimizes the effects of conducted emissions, conducted susceptibility, radiated emissions and radiated susceptibility. Interested companies must contact the POC within fifteen (15) working days of publication of this announcement to declare their interest in participating in this market survey and to request a copy of the Battery Charger Requirements Specification Document. Additionally, companies responding to this announcement must submit: (1) A brief technical description of their battery charger (not to exceed 5 pages); (2) A description of the extent to which their battery charger has undergone development and production; (3) A discussion of the test documentation possessed by the company which would validate that the Charge Cycles, Battery Recovery, Charge Time and Electromagnetic Compatibility requirements specified above can be met; (4) Information on the weight and dimensions of the battery charger; (5) Information on the mean-time-between failure (MTBF) that can be expected from the battery charger when operated in a fixed ground enclosed environment; (6) A description of the operator interface needed to operate the battery charger; (7) A rough-order-of-magnitude (ROM)cost estimate and schedule (including engineering/manufacturing design effort, prototype builds, documentation and qualification testing) for whatever modifications might need to be made by the company to their existing commercial off the shelf unit to meet the requirements specified in this announcement; and (8) separate ROM costs for production runs of 100, 150 and 200 units built to the requirements specified in this announcement. Additionally, companies responding to this market survey must provide a brief description of their related manufacturing and development experience (not to exceed two pages). Responses must also include company name, address, point of contact, telephone number and facsimile telephone number. This market survey may not lead to a future procurement. It should not be construed as a Request for Proposal, an Invitation for Bid nor as a commitment by the Government to issue an order or otherwise pay for the information solicited. The Government reserves the right to reject, in whole or in part, any responses to this market survey. Responses should be addressed to ESC/MCK, Attn: Peter Lewis, 50 Griffiss Street, Hanscom AFB, MA 01731-1620. Posted 07/30/98 (D-SN230475). (0211)

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