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How to build Battery Equality Monitor Circuit Schematic
2015-01-25 09:58
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Description
Almost all 24V power systems in trucks, 4WDs, RVs, boats, etc, employ two series-connected 12V lead-acid batteries. The charging system can only maintain the sum of the individual battery voltages. If one battery is failing, this circuit will light a LED. Hence impending battery problems can be forecast. The circuit works by detecting a voltage difference between the two series connected 12V batteries. Idle current is low enough to allow the unit to be permanently left across the batteries.
Circuit diagram:
Parts:
R1 = 2.KR2 = 4.7KR3 = 39KR4 = 39KR5 = 1.5KR6 = 1.5KQ1 = BC547Q2 = BC547Q3 = BC557D1 = 3mm Red LEDD2 = 3mm GreenLEDB1 = DC 12 VoltB2 = DC 12 VoltReprinted Url Of This Article:
http://www.circuit-finder.com/categories/power-supply/battery-charger/685/battery-equality-monitor-circuit-schematic
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