Lead Acid Battery Charger Circuits


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Lead Acid Battery Charger Circuits Page 2
Battery Charges Alkaline Lead Acid Lithium Nickel
Last Updated on: Friday, August 29, 2008 02:32 PM

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Links to electronic circuits, electronic schematics, designs for engineers, hobbyists, students & inventors:

Gel Cell Charger: (schematic / circuit added 10/02)

Gel cell Battery Charger: circuit to charge a Gell Cell or other lead-acid type battery, includes sense circuit (added 2/05)

IC Controlled Emergency Light with Charger: (electronic Circuit / Schematic added 10/04)

Lead Acid Battery Charger using the PIC14c000: Microchip Application Note Published 26-Aug-97 (app note added 2/06)

Lead Acid Battery Charger with Float: The circuit furnishes an initial charge voltage of 2.5 Volt-per-cell at 25°C to rapidly charge a Lead-Acid battery. The charging current decreases as the battery charges, and when the current drops to about 180mA, the charging circuit reduces the output voltage to 2.35 Volt-per-cell, floating the battery in a fully charged state. This lower voltage prevents the battery from overcharging, which would shorten its life. The LM301A (U3) compares the voltage drop across R1 with an 18-mV reference set by R2. The comparator's output controls the voltage regulator, forcing it to produce the lower float voltage when the battery-charging current passing... (added 2/06)

Lead Acid Battery Charger: Except for use as a normal Battery Charger, this circuit is perfect to 'constant-charge' a 12-Volt Lead-Acid Battery, like the one in your flight box, and keep it in optimum charged condition. This circuit is not recommended for GELL-TYPE batteries since it draws to much current. The above circuit is a precision voltage source, and contains a temperature sensor with a negative temperature... (electronic circuit added 2/06)

Lead Acid Charger (Gel Cell): This high-performance circuit first quickly starts (and holds) the charge at 2 amp, but as the voltage rises the current will consequently decrease.
When the current falls below 150mA, the charger automatically switches to a lower 'Float' voltage to prevent overcharging. At the point that a full charge is reached, Q1 will bias and the LED will light. (added 2/06)

Lead Acid Charger Signals End of Charge: 09/12/97 EDN Design Ideas / (added 4/02 /Lead acid Battery Charger that works with either gel or wet Cell, lead acid,12V Batteries

Lead-Acid Battery Charger with Voltage Analyser: (electronic Circuit / Schematic added 10/04)

Motorcycle Battery Charger: (schematic / circuit added 10/02)

New Battery Charger ICs Need No Heat Sinks: DN124 Design Notes (Linear Technology) (app note added 2/06)

New Components and Design Methods Bring Intelligence to Battery Charger Applications: Microchip Application Note Published 19-Nov-04 (app note added 2/06)

Optimizing High Frequency Battery Charger Performance for Worldwide Applications: 07/06/00 EDN Design Ideas / (added 5/02) Providing Power for electric vehicles for worldwide use requires knowledge of energy conserving and high efficiency technologies