6 Things to Know About Outdoor Extension Cord Lifespan

Three to five years is the realistic lifespan for an outdoor extension cord, depending on storage and climate. Mild weather and garage storage can stretch it to five years; sun exposure and wet concrete use cut it to three.

The SJTW jacket is tough but not immortal. UV sunlight makes the rubber brittle over time.

Yanking the cord around corners and coiling it tightly stresses the insulation. This wear accelerates failure.

The heat cycle from a leaf blower’s current draw adds up. The jacket near the plug ends usually fails first, or the blades inside the male plug loosen.

Do not wait for visible damage. Replace the cord if it feels stiff, won’t lie flat, or if the plug gets hot during use.

Check the prongs for discoloration or pitting. A poor connection can melt and cause a fire or shock.