Attention Onyx Lipo's are a very hi-output lipopolymer material and require storage and maintenance there is only a 30 day manufacturers warrantee against defects only whether you use the battery or not. a "dropped" cell is the only likley warrantable scenario
Don't be fooled by flash in the pan Lipo's promoting high "C" rating number's Our "ONYX" lipo's get better as they are cycled