A plastic cover on the barrel provides electrical insulation.

When heat is applied, the enclosed solder melts and the insulation shrinks, creating the most secure, electrically conductive, and environmentally sealed connection we offer.

Thicker walls than standard battery terminal lugs make these more durable.

When heat is applied, the flux and solder mixture creates a metallic bond that is nearly twice as strong as crimping or compression connections.

When heat is applied, the flux and solder mixture creates a metallic bond that is nearly twice as strong as crimping or compression connections.

Create a water- and corrosion-resistant seal while connecting two different sizes of wire.

With a ring of solder on the inside, these heat-shrink splices create secure, water-resistant connections between wires without the need for a crimping tool.