3e SRD:Craft Crystal Capacitor
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Craft Crystal Capacitor [ItemCreation]
Prerequisite: Manifester level 9th+.
Benefit: The character can create a crystal capacitor that stores a number of power points equal to or less than his or her base power points for his or her highest manifester level. The nature of power point storage, at least in conjunction with this feat, allows a maximum of 17 power points to be stored in a single crystal capacitor. Moreover, a crystal capacitors maximum is always an odd number. Note that during use, a crystal capacitor very often contains even numbers of power points, just not when fully charged. Crafting a crystal capacitor takes one day for each 1,000 gp in its base price. The base price of a crystal capacitor is equal to the highest-level power it could manifest using all its stored power points, squared, multiplied by 1,000 gp. To encode a crystal capacitor, a character must spend 1/25 of this base price in XP and use up raw materials costing half this base price.