Metal working – Method of mechanical manufacture – Electrical device making
Patent
1995-06-08
1997-09-16
Kalafut, Stephen
Metal working
Method of mechanical manufacture
Electrical device making
359271, 429 93, H01M 1048
Patent
active
056675380
ABSTRACT:
A tester for use in determining the voltage and state-of-charge of a battery. The tester can be permanently mounted on the battery and employs an electrochromic cell which changes visual appearance, for example, color or intensity of color when electrically connected across the terminals of a battery. The electrochromic cell undergoes an oxidation/reduction reaction on direct application of the DC potential of the battery. The color of the electrochromic cell can be compared with a color comparison chart to determine the condition of the battery.
The tester can be permanently electrically connected to the battery or, preferably, can be connected momentarily to determine the state of the battery.
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Eveready Battery Company Inc.
Kalafut Stephen
Welsh Robert W.
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