Plural comparator indicator of battery voltage

DETAILED DESCRIPTION What I claim is: 1.
A battery charge capacity indicator for providing an indication of charge capacity of said battery comprising: a pair of battery connecting terminals; voltage divider network means connected to said battery connecting terminal; a plurality of voltage comparators, each comparator having a first input individually connected to one of said branches of said voltage divider network means; means connected to said battery connecting terminals for providing a reference voltage, said reference voltage means connected as a second input to each of said volatage comparators; a plurality of biased switching means, each switching means connected to a different output of each of said voltage comparators which provides an input signal to bias individual switching means; a plurality of indicating means, each individual indicator means connected to a different biased switching means, circuit switching means connected to said battery connecting terminals having a first, second and third position providing a on-off test position of said circuit.




Description:
BACKGROUND OF THE INVENTION This invention relates generally to a device for showing the charge level of a DC battery and more particularly to a device that will provide an indication of the ability of the battery to provide a charge over a given reference voltage scale.
As is known, the use of DC voltage batteries, especially with and in conjunction with the electrical system in an automobile or boat is well known.
It is not uncommon due to the high voltage demand necessary in starting an internal combustion engine that the battery will fail without giving any prior warning or notice, which could be very hazardous especially in the operation of a boat.
The instant invention overcomes battery failure problems by providing an indication prior to the failure of the battery which would give adequate warning for a user to take steps to either have the battery recharged prior to its failure or to have it replaced