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Battery

What’s Internal Resistance of Battery

Last Updated on May 20, 2026 by Swagatam 2 Comments

fig2B1

In this post we try to investigate internal resistance of battery and try to learn the critical characteristics involved with this battery parameter. What’s Internal Resistance of Battery The internal resistance (IR) of a battery is basically the level of opposition to the passage of electrons or current through the battery in a closed loop. […]

Filed Under: Electronics Theory Tagged With: Battery, Internal, Resistance

Emergency Incubator Heater Circuit with Battery Charger

Last Updated on January 1, 2024 by Swagatam 1 Comment

incubator2Bheater

In this post I have explained a 12V power supply with battery charger circuit which can be implemented as an uninterruptible emergency heating system for incubator chambers. The idea was requested by Mr. Arya. Technical Specifications I’ve read all your good article, but can you help me to design an Linear PSU that provide 12 […]

Filed Under: Temperature Controllers Tagged With: Battery, Charger, Emergency, Heater, Incubator

Solar, Wind, Hybrid Battery Charger Circuits

Last Updated on October 20, 2023 by Swagatam 225 Comments

two2Binput2Bsolar2Bwind2Bcharger2Bcircuit

In this article I have explained a dual input hybrid solar and wind battery charger circuit using cheap and ordinary components. The idea was requested by one of the interested members of this blog. Technical Specifications Good after noon sir am designing a ” Solar and Wind energy harvest regulator circuit” which has two inputs […]

Filed Under: Solar Controller Circuits Tagged With: Battery, Charger, Circuits, Hybrid, Solar, Wind

Lipo Battery Balance Charger for Charging of Series Connected Lipo Cells

Last Updated on May 17, 2026 by Swagatam 97 Comments

lipo2Bscan

In this post I have explained a relatively easy lipo battery balance charger circuit which is designed to continuously scan and charge the connected cells of the battery. The idea was requested by Mr. Schindler and Mr. Emil Jan Thomas Baticulon.  Charging 6 Li-Po Packs The concepts are very well written, concise and clear. Thank […]

Filed Under: Battery Charger Circuits Tagged With: Balance, Battery, Charger, Charging, Lipo, Series

Designing a Customized Battery Charger Circuit

Last Updated on May 17, 2026 by Swagatam 166 Comments

LM338 basic adjustable power supply circuit diagram

I have designed and published a variety of battery charger circuits in this website, however the readers often get confused while selecting the right battery charger circuit for their individual applications. And I have to explicitly explain each of the readers regarding how to customize the given battery charger circuit for their specific needs. This […]

Filed Under: Battery Charger Circuits Tagged With: Battery, Charger, Customized, Designing

PWM Solar Battery Charger Circuit

Last Updated on May 17, 2026 by Swagatam 211 Comments

SMPSchargercircuit

This simple, enhanced, 5V zero drop PWM solar battery charger circuit can be used in conjunction with any solar panel for charging cellphones or cell phone batteries in multiple numbers quickly, basically the circuit is capable of charging any battery whether Li-ion or Lead acid which may be within the 5V range. Using TL494 for […]

Filed Under: Battery Charger Circuits, Solar Controller Circuits Tagged With: Battery, Charger, PWM, Solar

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