Product Overview
2x2 Stacked 4 AA Battery Holder with Wire Leads and Mounting Holes
Condition
New. Molded plastic body with pre-attached insulated wire leads and steel coil-spring contacts. Polarity indications and UM-3X4 markings molded inside battery bays.
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Product Overview
PartsMine UM-3X4 is a 4-cell AA battery holder arranged in a 2x2 stacked block. Wired in series, it provides a 6.0V DC nominal supply using four standard 1.5V alkaline cells or 4.8V DC using 1.2V NiMH rechargeable cells. Stripped wire leads provide flying connections for breadboards, switches, or terminal blocks, while integrated through-holes on the end faces support secure chassis mounting inside custom project boxes or portable electronics.
Key Features
- Holds 4 standard AA (UM-3, R6) cells in a dual-tier 2x2 stacked arrangement
- Series circuit wiring provides 6V nominal with alkaline or 4.8V with NiMH batteries
- Color-coded red (positive) and black (negative) flying wire leads
- Negative terminals feature resilient nickel-plated steel coil springs
- Positive terminals feature flat star-rivet contact plates
- Integrated mounting holes on end plates for panel or enclosure fastening
- Molded polarity guide symbols (+ and -) inside each bay
Applications
- Powering 5V-to-6V microcontrollers, Arduino boards, and robotics projects from a portable DC footprint
- Replacing cracked, corroded, or missing 4-AA stacked battery packs in handheld test gear and radios
- Mounting into custom 3D-printed enclosures where a compact cubical footprint fits better than a flat 4-cell tray
- Bench testing breadboard circuits requiring isolated battery operation without tethered bench supplies
Frequently Asked Questions
What is the output voltage when fully loaded?
With four 1.5V alkaline AA cells installed, the series connection delivers 6.0V DC nominal. With four 1.2V NiMH rechargeable AA cells, the nominal output is 4.8V DC.
Does this battery holder have a built-in power switch or protective lid?
No. This is an open-frame holder without an integrated on/off switch or battery cover.
Why choose this battery holder from PartsMine?
Ordering individually counted hardware means you get the exact number of battery holders required for your build without buying forced multi-packs. If you need several for production or club projects, more pieces cost less each, and the price-break table on this page shows what each quantity costs. Orders ship flat-rate for $8, upgrade to free shipping at $28 or more, and leave our Idaho warehouse the same or next business day.
When an enclosure has no room for a long 4-cell strip, stacking the cells 2x2 turns awkward negative space into ready-to-run DC power.
