Unique-Bargains AA Battery Spring Contact 50 Pairs 12mm .3mm 43g

AA battery spring contacts for DIY repair

These 50 pairs of semicircular spring plates convert a single AA cell into a positive and negative contact for battery case boxes. The nickel-plated iron construction gives reliable conductivity for low-power projects. Hobbyists and repair technicians can use them to replace worn springs or build custom holders. They are not suited for high-current applications or multi-cell packs.

Conductivity holds steady under continuous low draw

The thin 0.3 mm profile keeps resistance low enough for steady milliamp loads such as remote controls, sensors or LED circuits. Heat build-up stays negligible during extended operation because the contact area matches the AA button-top geometry. Voltage drop remains consistent across the batch, so parallel strings behave predictably. Sudden high-current pulses will deform the springs, so avoid motor-start or flash loads.

Press-fit into standard AA slots with no tools

Each plate slides into the moulded ribs of a 12 mm square battery compartment and the spring tension locks it in place. Misalignment is the only common issue; if the semicircle orientation is reversed the cell will not seat fully. The nickel finish resists oxidation, but flux residue from hand-soldering can increase contact resistance if not cleaned. Battery cells are not included.