How to Charge a Li-Ion Battery Correctly and Safely

The post details the correct method of charging a Li-Ion battery with safe parameters. Let’s learn the main points below: The recommended charging rate of an Li-Ion Cell is between 0.5C and 1C; the full charge period is approximately TWO TO THREE hours. In “1C”, “C” refers to the AH or the mAH value of […]

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Simple Constant Current Battery Charger Circuits

In this post we study the method of making 3 simple constant current battery charger circuits, first one merely utilizes a single resistor, the second design incorporates a single Darlington BJT, while the 3rd circuit employs the IC LM317 for implementing the proposed current controlled charging of the connected batteries A straightforward way of charging […]

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Automatic Solar Charger Circuit Single Transistor

In this post we discuss elaborately an automatic solar charger circuit using a single transistor relay circuit. Simple Charger using a Battery and Solar panel A solar panel can certainly be applied to directly charge a battery with virtually no other elements. Just hook up the panel with the battery and it can charge once […]

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Cellphone Power Bank Circuit you can Make at Home

This simple cellphone power bank circuit charger can be built at home and used for emergency charging your cell phone anytime anyplace regardless of an AC mains outlet or input availability. The idea is all about using a 4 AAA N-Cd cells in series and then keeping it fully charged through a suitable SMPS charger […]

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