4V Lead Acid Battery Charger
DESCRIPTION
// Update 02/2018. - You can use any Li-ion charger which is used to charge phone's 3.7v Battery as they both are charged with a 4.2V DC. but if you still want to make one of your own... just go through this instructable.
MY First Instructables Friends ,
So this is for those who are new to Lead Acid batteries and about charging them , A cute Little 4V battery charger
SO What we need to charge a 4V Lead acid battery, all we need is A 5V regulated supply, and let's make it ......
Material
1. 5V Voltage Regulator ..... ----- I.e . Ls7805
2.Header Pins Or anything you want to use to connect the battery to circuit
3. 1N4001 rectifier Diode
4.An ECB, Or breadboard or anything like that........
2 More Images
First you need a DC power source Which Is Greater than 7Volts for the battery charger to work correctly, you can attach a laptop charger with a dc jack , or you can also use a set top box Adapter. and at the output of voltage Regulator connect the battery
Circuit is In the pictures
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don't mind about the capacitor, it in not used in circuit............