Liquid reserve batteries for muntions

A liquid reserve battery comprising:

• a collapsible storage unit having a liquid electrolyte stored in an interior of the collapsible storage unit, the collapsible storage unit being collapsible from a first volume to a second volume, where the second volume is smaller than the first volume, the collapsible storage unit having one or more conduits extending from the interior of the collapsible storage unit to an outlet of the one or more conduits to pass the liquid electrolyte from the interior of the collapsible storage unit to a battery cell;
• the battery cell having an inlet in communication with the outlet of the one or more conduits, the battery cell having gaps dispersed therein;
• a first pyrotechnic material disposed adjacent the collapsible storage unit such that initiation of the first pyrotechnic material provides pressure to collapse the collapsible storage unit from the first volume to the second volume and to heat and force the liquid electrolyte through the outlet and into the gaps;
• and
• a second pyrotechnic material disposed to at least partially surround the one or more conduits such that initiation of the second pyrotechnic material heats the one or more conduits and the liquid electrolyte therein passing through the one or more conduits to the battery cell;
• wherein the one or more conduits comprises a plurality of conduits, and the outlet comprising a plurality of outlets, each corresponding to one of the plurality of conduits.