Statement_of_Need.pdf
PDF 256 KB Posted
- Attached to
- Lithium Battery Packs Federal contract opportunity
- Solicitation number
- 1333MJ25Q0006
About this file
This Statement of Need from NOAA's PMEL Engineering Development Division requests 60 custom lithium battery packs for GPS mooring buoys used in NASA's SWOT project for satellite calibration and ground truth measurements. The battery packs will replace existing units that have reached end of life.
The technical specifications require battery packs with maximum dimensions of 5.85" diameter and 5" height, containing 14 cells (12 active + 2 dummy) configured in a 4S-3P arrangement. The cells must be BCX 85 DD (3B0076) made by Electrochem with 30Ah/cell capacity. Each pack requires 2-foot external 22 AWG Teflon-insulated wiring (600V rated), with wires exiting from the side of the pack. Delivery is required within 90 days after receipt of order (ARO), with shipping via Government Bill of Lading. The technical drawings show detailed wiring diagrams, cell configuration, and physical layout requirements including diode isolation with 1N5817 or equivalent diodes.
View the file
Other files for this federal contract opportunity
| File | Type | Posted |
|---|---|---|
| Sol_1333MJ25Q0006_Amd_0002.pdf | ||
| Questions_and_Responses_0002.docx | DOCX document | |
| Sample_battery_pack_picture_0002.jpg | JPG image | |
| Sol_1333MJ25Q0006_Amd_0001.pdf | ||
| Statement_of_Need_0001.pdf | ||
| 50031_Combined_Synopsis_Cover_Page_FAC_2025-02.docx | DOCX document | |
| Sol_1333MJ25Q0006.pdf |
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Text version
1/3/2025
STATEMENT OF NEED
PMEL Engineering Development Division
Project: NASA Harvest GPS Buoy
Requisition: 145027-25-0031
PURPOSE:
PMEL's Engineering Development Division is requesting the supply of 60 custom lithium battery packs for PMEL GPS mooring buoys. These battery packs will replace the existing battery packs on the moorings which have reached their usable lifespan.
BACKGROUND:
These battery packs will be used to power buoy systems used to calibrate and ground truth satellite measurements for a NASA project called SWOT.
TECHNICAL SPECIFICATIONS:
● Max Diameter: 5.85"
● Max Height: 5"
● Must fit on PMEL GPS buoys and be compatible with the GPS buoy system (see drawing)
● 14 cells (12 cells + 2 dummy cells)
● Cells are BCX 85 DD: 3B0076 made by Electrochem
● 30Ah/cell
● External 22 AWG cable - 2 ft
● Wires are 22AWG 600V Teflon insulated
● Qty 60: 4S-3P packs
DELIVERY SCHEDULE:
Delivery by 90 days ARO or sooner
Shipping will be using Government Bill of Lading (GBL). Shipping information will be provided by the government.
1/2/2025 Rev 1.1
NASA GPS BUOY
NOAA-PMEL-EDD
7600 Sand Point Way NE
Seattle, WA 98115
Lithium Buoy Pack Tube Pack (14 cells/layer, 1 Layers Max)
CPU section :
4 Cells per string (15.4V @ 3.85V per cell) 3 Strings 12 + 2 Dummy Cells Total Diode Isolated with 1N5817 or Equiv. Diodes
12 Cells total per pack Cells are BCX 85 DD: 3B0076 Electrochem 30Ah/cell Lithium Bromine Chloride All wire 18 or 22AWG 600V Teflon insulated.
Wires must exit the side of the pack (not the top or bottom)
* Diodes accessible for testing
15.5Volts Red
Lithium Battery Pack 4S-3P
Internal & external pack wiring should be 22 AWG teflon or equiv.
14 Cells / Layer
Max Diameter
5" M ax im um H ei gh t
Project: NASA GPS File: GPS BUOY BATTERY Contact: Dirk Tagawa Phone : 206 526 4627
D1
D2
22 AWG Teflon insulated wire
Top View
D3
3 Strings of 4 Cells
External Wire
2 feet wire
(22 AWG)
Blk
Wire exit on side of pack
1/2/2025 Rev 1.1
NASA GPS BUOY
File details come from the government source that posted it. Updated .