150-Piece Kit of 10 Sizes of Nickel-Plated AAA Battery Springs, Negative-to-Positive Conversion Spring Contact for AAA Batteries, Spring Contact Plate for Battery Replacement

⚡ What You Get ------ In this kit, you will receive 150 pairs of nickel-plated AAA battery springs in 10 sizes, including 50 bipolar plates and 50 pairs of unipolar plates (with 50 separate positive and 50 negative poles). All are neatly packaged in a clear plastic box for easy storage and transport. An excellent replacement for battery spring contact plates.
⚡ Premium Material ------ These battery springs are made of high-quality iron, do not easily deform or break, and offer excellent electrical conductivity. Simultaneously, the surface is treated with nickel plating, which greatly improves oxidation and corrosion resistance, also improves wear resistance, extends its lifespan and gives it better electrical performance.
⚡ 10 Sizes Available ------ We have prepared 10 sizes of negative-to-positive conversion spring contacts for AAA batteries: 5 sizes of single-pole plates (length * width): 7x7 mm / 0.27"x0.27", 9x9 mm / 0.35"x0.35", 8x9.5 mm / 0.31"x0.37", 10x9 mm / 0.39"x0.35", 11x9 mm / 0.43"x0.35"; 5 sizes of bipolar contact plates (length * width): 18x8 mm / 0.7"x0.31", 20x8 mm / 0.78"x0.31", 20x9 mm / 0.78"x0.35", 20x8 mm / 0.78"x0.31" (with pins), 22x9 mm / 0.8"x0.35" (with pins)
⚡ Easy Installation ------ The battery spring contact plate is designed with standardized mounting holes and positioning structures, allowing for direct screw mounting or installation in the device's battery compartment via clips. The installation process is simple and requires no complex tools, saving time and effort. Even beginners can quickly complete the installation.
⚡ Combination of Single and Double Pole Plates ------ The set includes both single and double pole plates, suitable for circuits powered independently by a single battery or used with battery packs. It easily meets the battery installation requirements of various electronic devices, from children's toys and remote controls to small flashlights and various DIY electronic projects, offering perfect compatibility.