Normal car battery has liquid inside and Gel Cell Battery Charger Circuit uses jelly but not liquid. Jelly make battery strong and work in any position and to charge gel battery we need special charger, as this charger gives right power but not too much. Too much power can hurt battery and special charger keep […]
Simple Circuit to keep a Battery Topped Up
Think of a battery like water tank for our device. This Simple Circuit to keep a Battery Topped Up is like a helper, which checks battery level and gives charge when battery gets low. Also, battery stays full and is ready always which is good for backup power, solar lights and for wireless toys. Circuit […]
Automatic Battery Charger with Trickle Charger Circuit
What if charger is smart? and if it fills battery by itself and keeps it full, but not too much. That is what Automatic Battery Charger with Trickle Charger Circuit does; it has part that checks battery power and if battery is low it sends power to fill. When it is full it gives little […]
Simple Automatic Battery Charger Circuit using One Transistor
This post shows very easy way to make Simple Automatic Battery Charger Circuit using One Transistor and with few parts. Also, this circuit charges battery by itself like small machine, as it uses only one transistor, one resistor and one LED. Furthermore the circuit is good for charging 9V battery where LED shows when charging; […]
How to Find the Charging Current of a Battery
To charge battery safely we need right amount of electricity like current, as it is the same like plant needs right water. Most people use multimeter to check this but not everyone has it; also in this article for How to Find the Charging Current of a Battery is easy trick without tool: Circuit Working: […]
Simplest Blown Fuse Indicator Circuit
This Simplest Blown Fuse Indicator Circuit shows if fuse is good or bad without checking it by hand; also if fuse is okay then green LED turns ON. Furthermore, if fuse blows then green LED goes OFF and red LED turns ON and that means fuse is bad and needs to change. Circuit Working: Parts […]