CellBlock CellSafe Envelope DDR Li-Ion Recycling Kit


Safely and compliantly manage damaged, defective, or recalled (DDR) lithium ion batteries with an all-in-one mail back solution that includes an innovative and reusable fire-proof liner that offers protection from thermal runaways. Features include:

  • Packing options ideal for returning flat consumer electronics and other battery-powered portable devices
  • Access to U.S. DOT Special Permit 20910 eliminating the need to ship these batteries fully regulated
  • Rated for a battery-powered device or a single lithium ion battery up to 185 Wh
  • Innovative fire protection and suppression technology providing risk mitigation from thermal events
Managing a product recall? Request a quote or contact a member of our team at 1-877-723-1297 to discuss your recall needs. Learn more about our all-in-one battery recall services, which include:
  • Packaging, logistics, disposition, tracking and reporting of battery-related product recalls
  • Flexible return shipping options to your warranty or evaluation centers or direct to recycling
  • Seamless ordering and tracking of your customer data with Call2Recycle’s API integration services
  • Custom pricing

Video Demonstration


Large Envelope Kits:

  • Outer Dimensions: 14.75″ x 11.75″
  • Inner Dimensions Approximately: 14″ x 11″

Medium Envelope Kits

  • Outer Dimensions: 15″ x 7″
  • Inner Dimensions Approximately: 14.5″ x 6.5″

Weight Capacity

These containers are designed to transport small electronic devices like smartphones, tablets and laptops up 15″, as well as single lithium-ion batteries that power electronic devices. Individual battery must be no more than 185 Wh.

Accepted Materials

Damaged, defective or recalled (DDR) lithium-ion battery or lithium-ion battery contained in equipment. In aggregate, batteries must not exceed 185Wh.

Included Suppllies

(1) shipping box
(1) felt sleeve
(1) pre-paid return shipping label
(1) set of instructions

Additional Information