The Jackery Solar Series Connector provides extended cables to reach between your Jackery solar panels and the your Jackery power supply. 

The 16.4-feet power cable is pliable to fully extend for Jackery’s solar panel and portable power station connection - particularly practical for outdoor applications.
These cables are built to last. Filmed with PVC material, the cable with a 0.28-foot diameter is flame-retardant and durable that can be used for off-grid adventures.

The Jackery extension power cable provides stable power transmission. The embedded premium copper core produces less resistance, delivering a fast, stable current.

Also, the Jackery extension cable is safe and reliable. Just avoid usage during rainy days/wet environments.