Here is a battery monitor circuit which can be used to monitor the voltage of 12V lead acid batteries such as car batteries. The circuit is built around the LM3914 IC...
This is a project of a mini USB car charger circuit. The circuit can charge USB devices with car battery...
Circuit of a full automatic NiMH battery charger using positive integrated voltage regulator IC 7805 which is porviding a constant current to charge the batteries...
A very interesting and useful circuit of a multiple nicd & nimh battery charger circuit which can charge batteries of many electronic devices for example radio, mp3 players, cellular phones...
This is a portable battery powered USB charger circuit. This circuit is able to charge your PDAs, Ipods, Mp3 players and any device that plug in to a computer USB to charge...
This is a NiCd battery charger circuit. This circuit can charge 12V nicd battery pack. But you can also charge 6V and 9V battery packs...
lead acid battery charger schematic using the famous IC LM 317. The circuit provides the correct voltage to charge the 12v sealed lead acid battery or 12v SLA battery...
Here is a solar battery charger schematic which can charge 12 volt SLA batteries. This solar battery charger circuit has auto cut off function so it will automatically stop charging when the battery become full charge...
This is a circuit of a simple single cell li ion battery chager. This lithium ion battery charger circuit uses a LP2931 regulator IC...
This is a schematic diagram of a full automatic 12v battery charger for charging the batteries of automobiles etc. This circuit has a maximum 2 amperes charging rate...
The circuit is able to charge 2.4V, 4.8V, and 9.6V NiCd batteries. The LM317T IC showed in this NiCd battery charger schematic is use to regulate...
Here is a 6V 4.5 AH battery charger circuit which is able to charge 6V 4.5 AH lead acid batteries. The schematic is very simple and using only few components...
The project shown here is a 6V battery backup circuit. The circuit is easy to build and work as a mini UPS for 6V devices.
A good designed circuit of a Alkaline battery charger. The interesting thing of this circuit is that it uses a led that will show the charge of battery by blinking, when you connect a totally discharged battery the LED blink faster but when the battery charging process starts the LED blinking speed will dicrease slowly and completely stop when the battery will fully charged.
This is a circuit of dc to dc converter, this is a versatile circuit and can be use for many purposes in this diagram LT1073 is used for 1.5 volt to 5 volt conversion, voltage can be taken from any size of 1.5 volt battery for example AA or AAA.
A miniature low dropout lithium-ion battery charger circuit using LTC1731.
A useful circuit of a solar charger, the circuit charges AA or AAA type battries. The best charging power achieved by placing the circuit in direct sun light. This circuit can be also use for powering any equipment like radio, disk man or palm etc which uses AA or AAA type batteries.
