METHOD AND DEVICE FOR RECHARGEABLE, RETROFITTABLE BATTERY PACK

摘要

A power system on an electric guitar may include a cover plate covering a standard cavity in the electric guitar. A rechargeable power source may be contained within the standard cavity and may not extend beyond an external surface of the cover plate. Other instruments or configurations may be used.

主权项

1. An electric guitar, comprising:
a first side having mounted thereon guitar strings; a second side opposite the first side comprising a standard spring cavity, the cavity comprising springs to counterbalance the tension of the guitar strings, the standard cavity being created at the time of the manufacture of the guitar, the standard spring cavity having the design of the standard cavity of a Fender STRATOCASTER guitar; a pickup to detect vibrations from the electric guitar's strings and output a signal; a back plate to cover the standard spring cavity, the back plate being the same size and shape as the cover originally manufactured to cover the standard spring cavity; a rechargeable power source to provide power to the pickup; the rechargeable power source disposed flat and parallel to the back plate; a charging circuit to control the input and output of current to and from the rechargeable power source; and a jack for connection to a charger.