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Triac Battery Charger Circuit

Last Updated on May 17, 2026 by Swagatam 57 Comments

triac battery charger circuit 750x445

A triac based battery charger replaces a normal relay for automatically cutting off power to the battery very efficiently. In this post I have explained a simple a battery charger circuit using a triac auto shut-off facility. The circuit can be used for charging any high current, high AH types battery with a full-charge auto […]

Filed Under: Battery Charger Circuits Tagged With: Battery, Charger, Triac

How to Select the Right Charger for Li-Ion Battery

Last Updated on May 17, 2026 by Swagatam 3 Comments

licharger

In this discussion we try to learn the right procedure for selecting a charger for a Li-ion battery. The question was raised by Mr. Akshay. Li-Ion Charger Related Question I have a 5000mAh Li-ion battery. Can i select a charger for my Li-ion battery having the following specifications, the product is available on ebay? I […]

Filed Under: Battery Charger Circuits Tagged With: Battery, Charger, Right, Select

Use this Battery for 50 Years without Charging

Last Updated on May 17, 2026 by Swagatam 4 Comments

betavolt battery

A novel battery technology, developed by Beijing-based firm Betavolt, has been introduced. It boasts an astounding 50-year lifespan without the need for maintenance or charging. With 63 radioactive isotopes contained in a module the size of a penny, this ground-breaking nuclear battery is a leader in the field of atomic energy miniaturization. https://twitter.com/Byron_Wan/status/1746801325722239367/photo/1 Advancements in […]

Filed Under: Battery Charger Circuits Tagged With: Battery, Charging, without, Years

Car Battery Warmer Circuit

Last Updated on May 16, 2026 by Swagatam Leave a Comment

car warmer circuit

The main objective of this car battery warmer circuit is to make sure that even in extremely low temperatures, the battery can be charged and discharged satisfactory. The design idea was requested by Mr. Elias, as I have explained below. Design Request and Specifications My plan is to control a silicone heat pad that runs […]

Filed Under: Automobile Electronics Tagged With: Battery, Warmer

Motorcycle Low Battery Over Discharge Protector Circuit

Last Updated on May 16, 2026 by Swagatam 37 Comments

motorcyclebatteryoverdischargeprotectorcircuit

A simple motorcycle battery over discharge protector circuit is explained in the following post. The circuit will prevent the battery from over-discharging by the motorcycle headlamp whenever the mo-bike alternator is not enabled or is idling in the neutral mode in which case the battery is normally subjected to excess loads via the headlamp bulb. […]

Filed Under: Automobile Electronics Tagged With: Battery, Discharge, Motorcycle, Over, Protector

Arduino Mains Failure Battery Backup Circuit

Last Updated on May 14, 2026 by Swagatam 6 Comments

arduinoback up

In this article I have explained a simple mains failure backup circuit for providing Arduino boards an uninterruptible supply during such situations. The idea was requested by Mr. Fredrik. Technical Specifications This blog gave me a lot of interesting information. Especially the power supply circuit with battery backup part. The reason for this is that […]

Filed Under: Arduino Projects Tagged With: Arduino, Backup, Battery, Failure, Mains

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