Adam Tech Spring Connectors, Battery Holders, Battery Snaps an Mobile Battery Connectors are designed to create connections and contain batteries in electronic equipment. This series includes battery holders and coin cell holders for AAA, AA, C, D, 9V and lithium coin cells. Adam Tech produces this series in a variety of terminations such as through hole PCB leads, SMT leads, wire leads and solder lugs. Custom lead lengths on wire configurations are also avaialble. Our superior retention holders are molded of UL-94V0 or UL-94HB material with spring steel contacts and perform extremely well under normal or adverse environment conditions.