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Category : " Solar Battery Chargers "

10 Amp Solar Charge Controller by LM324

Catagory : Solar Battery Chargers
This is a solar charge controller, it’s function is to regulate the power flowing from a photovoltaic panel into a rechargeable battery. It features easy setup with one potentiometer for the float voltage adjustment, an equalize function for periodic overcharging, and automatic temperature compensation for better charging over a range of emperatures. [...]

Solar charger for lead-acid batteries

Catagory : Lead Acid Battery Charger Circuits, Solar Battery Chargers
This circuit is intended for charging sealed lead-acid batteries with a solar panel in small and portable applications. The customary diode that prevents the battery from discharging through the solar panel has been replaced by a FET-comparator combination. The charger will stop charging once a pre-set voltage (temperature compensated) has been reached, and recommence charging when the voltage has dropped off sufficiently. The load is disconnected when the battery voltage drops below 11V and reconnected when it gets back to 12.5V. [...]

Solar Car Battery Charger DIY

Catagory : Solar Battery Chargers
Here’s how to charge your lead-acid car battery with a solar panel.The simplest way: Get a voltmeter and a solar panel. Connect the panel to your battery and watch the voltage rise. When it gets near 14 volts your battery is charged. Disconnect your solar panel to keep it from overcharging your battery.Your battery can be damaged if you charge it too fast, so don’t get a panel that’s too big for your battery. Consult the battery manufacturer’s data to see how many amps it can handle, both while charging and discharging. If you happen to have a big panel and a little battery, there are tricks further along in this instructable. [...]

Batwatch-Solar panel battery charger

Catagory : AVR microcontroller, Solar Battery Chargers
Batwatch is a simple monitor for a solar panel battery charger, using an Atmel ATtiny13V. It periodically measures the charge current and battery voltage, and shows them by blinking two LEDs. The circuit built into the plug of a VW solar charger panel that is used to prevent a discharge of the battery when a car is not used for some time. A modern car contains a large amount of electronics, and a quiescent current of 40-50mA . [...]

AA Battery Solar Charger

Catagory : Battery charger circuits, Solar Battery Chargers
This almost trivial circuit may be used to charge a pair of AA or AAA sized rechargeable battery cells from sunlight. The circuit has been used to keep a Palm Pilot and walkman radio running perpetually. This is an unregulated charger, proper charging is achieved by placing the unit in the sun for a known amount of time, this time varies according to the battery type. [...]