Ace the 2026 FedEx Battery Shipping Test – Power Up Your Delivery Skills!

Absorbent material is used to absorb leaked electrolyte in the event of a seal breach and prevent contamination. If a lithium battery is damaged, the liquid electrolyte can escape and spread, potentially harming other cargo, damaging packaging, or creating safety hazards for handlers. The absorbent acts like a sponge, drawing the liquid away from the outside environment and keeping it contained within the package, which reduces the risk of contamination and exposure during transport.

Cushioning, moisture control, and heat transfer are handled by other features or materials: cushioning protects against physical shocks, desiccants manage moisture in the environment, and absorbent materials focused on leaks don’t improve heat transfer.