Reason to be hard plastic of magsafe battery pack

[ray6088]

Hard plastic is easier to insert 3rd party mold or stand, isn't it? The only reason I ordered it because it can be used as Magsafe charger without spending $40. It's good as backup battery while traveling. White maybe better match the pad or stand. Any thoughts?

 

[codeunrwolfpack]

I'd imagine it is not as easy to puncture into the battery as well with the hard plastic on the outside.