NDBC Li-Ion Battery RFI Electrical Pin-outs.pdf

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Request for Information: Lithium Ion Battery Pack
Solicitation number
25-1789
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This document details electrical pin-out specifications for two different Molex connectors and two micro-circular bulkhead (MCBH) connectors used in a lithium-ion battery pack design for the National Data Buoy Center (NDBC).

The Molex connectors (0430250200 and 0430251200) define pin configurations for Smart Module P0 and P1, with P0 having battery and ground pins, and P1 including I2C clock and data external pins. The MCBH connectors specify power input and output pin layouts, with the MCBH4M connector handling solar power input (negative and positive pins) and the MCBH8F connector managing power output, including multiple negative and positive pins. These detailed specifications are likely part of a Request for Information (RFI) to potential vendors for designing and producing a secondary battery pack for oceanographic and meteorological observation equipment.

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Other files

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Questions and Responses V2.pdf PDF
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The tables below describe the pin-outs for the two Molex connectors that will connect to P0 and P1 of the Smart Module. Note that P1 only uses 3 out of 12 pins.

0430250200 MATING FACE Pin-out for Smart Module P0 (Molex 0430250200)

Pin Description

1 BATT

2 GND

0430251200 MATING FACE Pin-out for Smart Module P1 (Molex 0430251200)

Pin Description

2 GND

4 I2C Clock External

5 I2C Data External

The tables below describe the pin-outs for the external micro-circular bulkhead (MCBH) connectors, used for power input and output.

MCBH4M

MATING FACE Pin-out for Solar Power Input (MCBH4M)

Pin Description

1 NEGATIVE -

2 NEGATIVE -

3 POSITIVE +

4 POSITIVE +

MCBH8F

MATING FACE Pin-out for Power Out (MCBH8F)

Pin Description

1 N/A

2 N/A

3 NEGATIVE -

4 NEGATIVE -

5 NEGATIVE -

6 POSITIVE +

7 POSITIVE +

8 POSITIVE +

File details come from the government source that posted it. Updated .