In-cell charge control
In-Cell Charge Control or I-C3 is a method for very rapid charging of a Nickel-metal hydride battery, patented by Rayovac. Batteries using this technology are commonly sold as "15-minute rechargeables".
The charge control consists of a pressure switch built into the cell, which disconnects the charging current when the internal cell pressure rises above a certain limit (usually 200 to 300 psi or 1.4 to 2.1 MPa). This prevents overcharging and damage to the cell.
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gollark: This is just an example of "you sometimes need a quantity of something which falls in some interval", not a general proof.
gollark: That seems like just "it's bad because it's something you don't consent to" and also "it's unpleasant", which is I think what we said.
gollark: The dictionary will probably define it recursively or in a somewhat unsatisfying way.
gollark: No idea, hard to define rigorously.
gollark: There, easy to do somewhat.
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