Storage battery test apparatus to determine remaining stored charge therein
First Claim
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1. Storage battery test apparatus to determine the remaining storage capacity of the battery (10) comprisinga volt meter (14) having a needle (20) and voltage connection means to connect said volt meter across the battery terminals (12, 13);
- a standard load (11) and power connection means (15) to connect the standard load across the battery terminals (12,
13);
a current sensing means/(16,
17) including an ammeter (17) and current connection means to connect the current sensing means into the power connection means and hence into the battery -- standard load circuit,and a meter arresting device (22, 22'"'"',
23) mechanically coupled to the volt meter (14) and controlled by the ammeter to arrest movement of the volt meter needle (20) under current sensing conditions of current flow other than current flow at a predetermined test current range, the ammeter sensing when a predetermined current flows from the battery (10) to the standard load, and controlling the volt meter to then provide an output indication which will be representative of the remaining charge stored in the battery.
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Abstract
A volt meter is connected across the battery terminals to read output voltage; a standard load, which may be the normally connected or design load for the storage battery is connected thereacross and, when a predetermined load current flows into the standard load, a control means coupled to the volt meter controls the volt meter to then indicate battery voltage as a measure of remaining stored charge.
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Citations
7 Claims
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1. Storage battery test apparatus to determine the remaining storage capacity of the battery (10) comprising
a volt meter (14) having a needle (20) and voltage connection means to connect said volt meter across the battery terminals (12, 13); -
a standard load (11) and power connection means (15) to connect the standard load across the battery terminals (12,
13);a current sensing means/(16,
17) including an ammeter (17) and current connection means to connect the current sensing means into the power connection means and hence into the battery -- standard load circuit,and a meter arresting device (22, 22'"'"',
23) mechanically coupled to the volt meter (14) and controlled by the ammeter to arrest movement of the volt meter needle (20) under current sensing conditions of current flow other than current flow at a predetermined test current range, the ammeter sensing when a predetermined current flows from the battery (10) to the standard load, and controlling the volt meter to then provide an output indication which will be representative of the remaining charge stored in the battery. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification