Patent ID: 8820532

Claim:
A leak-proof package for at least one defective battery containing corrosive liquid, comprising: a substantially rectangular box forming an inner container configured to accept the at least one battery therewithin and having an inner-container surrounding wall that includes a bottomwall, a topwall and a sidewall between the bottomwall and the topwall, the topwall forming an inner-container closure of an inner-container access opening, the inner container being substantially free of pointed corners; a plastic bag forming a fluid-impermeable intermediate container sealing the inner container therewithin, the bag having a top end forming a fluid-impermeable lock; and an outer container enclosing the intermediate container and having an outer-container surrounding wall that includes an outer-container topwall forming an outer-container closure of an outer-container access opening, whereby the plastic bag is protected from puncture by being between the inner and outer containers such that the defective battery containing corrosive liquid is protectively packaged for leak-free transportation.