Product Overview
Two-Cell AA Battery Holder with Flying Leads, Molded BH-321-5, Sold New
Condition
New, as listed. The holder photographs clean and empty: black molded plastic body, bright plated springs and contacts, and no cell residue, corrosion, or scuffing in either bay. The base is molded with a 1.5V battery symbol, the cell size callout reading UM-3 X2, a diamond maker's mark reading AY, and the part number BH-321-5. Red and black insulated flying leads come off one end with free cut ends, ready to strip and terminate. No retail packaging, no batteries, no mounting hardware included.
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Product Overview
This is a two-position holder for standard AA cells with red and black wire leads already attached, so it drops into a breadboard build, a battery pack, or a repaired consumer device without any soldering to the contacts. AA is the same cell the standards bodies call R6 in IEC 60086, size 15 in ANSI C18, and UM-3 in the JIS system, and the molded UM-3 X2 marking on this holder's base tells you exactly that: two UM-3 cells. Each cell is nominally 1.5V, so a loaded pair in the usual series arrangement gives 3V nominal. Confirm polarity against the molded plus and minus symbols and check the lead-to-contact wiring with a meter before you commit it to a circuit. Cells are not included.
Key Features
- Cell capacity: two AA cells, side by side
- Cell designations: AA / R6 (IEC 60086) / size 15 (ANSI C18) / UM-3 (JIS)
- Molded markings: 1.5V battery symbol, UM-3 X2, diamond AY mark, BH-321-5
- Leads: red and black insulated flying leads with free cut ends
- Contacts: coil spring on the negative end of each bay, flat button contact on the positive end
- Body: black molded plastic, open-top bays
- Condition: new, unused, sold loose without packaging
- Lead length and wire gauge: not confirmed - measure before planning a harness
Applications
- Hobbyist wiring a 3V LED, buzzer, or sensor project who wants a power source that is not a bench supply
- Prototyper feeding a low-power microcontroller board from two AA cells during breadboard bring-up
- Repair tech replacing a cracked or corroded holder in a remote, toy, clock, or small instrument
- Instructor or STEM club assembling classroom kits where students load and swap their own cells
Frequently Asked Questions
What voltage do I get out of it?
Two 1.5V AA cells in the usual series arrangement give 3V nominal. The base is molded with polarity symbols for each bay - follow them when you load cells, and confirm the lead polarity with a meter before wiring into a circuit.
Are batteries included?
No. The holder ships empty and loose, exactly as photographed. You supply the AA cells.
Will rechargeable NiMH AA cells fit?
Physically yes - NiMH AA is the same R6 / size 15 cell envelope. Electrically, NiMH runs about 1.2V per cell instead of 1.5V, so a loaded pair sits near 2.4V nominal rather than 3V. Size your circuit accordingly.
How long are the wire leads?
Not confirmed. The photo was not shot against the ruler, so we are not quoting a length or a wire gauge. Assume you may need to extend or trim, and measure the part in hand before you build a harness around it.
Why buy one or two of these here instead of a forced lot of ten?
Because a repair usually needs one holder and a prototype needs two. PartsMine sells the exact quantity you want instead of making you buy a bag of ten or fifty to get the one you are short. Shipping is $8 flat rate and free over $28, and orders go out the same or next business day from Idaho, which usually lands well under the cost of a bulk lot you did not need.
Every bench project that begins with "it only needs three volts" ends up needing one of these. Load two cells, land the red and black on your board, and the power question is settled for the afternoon.
