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Leyden Jar

A glass jar lined with copper foil that stores a charge and gives it back as a burst. It's what makes the Electrostatic Generator's one-second pulse useful.

Crafting

  W
F G F
F G F

W is Copper Wire, F is Copper Foil and G is Glass.

How it works

Put it on a line with a source. It switches between two jobs on its own:

  • Charging. While a higher voltage is on the line, the jar draws 1 A and fills up.
  • Discharging. When the supply goes (the pulse ends, the cell is cut off), the jar becomes a source itself and gives back up to 8 A at whatever voltage it holds.

It holds 10 amp-ticks per volt. One Electrostatic Generator pulse (1 A for 20 ticks) fills it to the generator's 1.5 V with a little to spare.

A burst, not a battery

Its voltage falls as it empties, so anything running off it slows down as it goes: a strong start that tails off. It also leaks about 0.2% of its charge every tick, which halves it in roughly 17 seconds, whether or not anything is connected.

There's no general-purpose battery in Feedback. A jar smooths a pulse and carries you over a gap; it won't store a day's power.

Careful

A jar charged to 6 V (MV) or more shocks whoever touches it, walking into it or right-clicking it. See Hazards. One charged from a Galvanic Cell or an Electrostatic Generator is never that high.

See also: Jar Baton, which draws a jar's charge and spends it on a melee hit.