in fairness I should mention we have a new battery option in stock that we are testing extensively
before we put it up for sale. We built these units from the ground up and are custom VOLT (no one else has these). They are not a "new innovation" but the internals are built specifically for us by our factory for the VOLT cartos. They will have a removable passthrough option. (no this is not the battery mentioned from another vendor). They will be available in manual or sealed auto option.
So you may want to stay tuned for that official announcement. They will not be replacing the current VOLT line of batts.. they are an alternative...
can't say much more but you will see them sometime this week or next week.