Skip to content
ElecCircuit.com
  • Categories
    • Amplifiers
    • Preamplifiers
    • Power supply
    • Variable Supply
    • Switching Mode
    • DC converters
    • Inverters
    • Battery Chargers
    • RF – Radio Circuits
    • Meters & Detectors
    • Basic Electronics
    • Oscillator circuits
    • Sound Generators
    • 555 Timer
    • Controls & Timers
    • Motor Controller
    • Digitals & Microcontrollers
  • Circuits
    • 99+ Simple Electronic Circuits
    • Simple electronic projects
    • Amplifiers Circuits
    • 99+ Power Supply Circuits
  • Basics
    • Basic Electronic Components
    • Learning
  • ABOUT
    • About us
    • Support us

:: Home » Battery Testers

Battery Testers

Battery Voltage Monitor circuits

Last Updated on: March 19, 2025 by Apichet Garaipoom
Low Voltage Battery indicator circuit

The simple low voltage tester circuit using LM339,can use Battery voltage monitor for voltage sources that problems, by LED display and alarm sound. Read more

Categories Meters & Detectors, Recycling electronics Tags Battery Testers, Electronic buzzer, Level voltage indicator 12 Comments

8 Low Battery Voltage Alarm indicator circuits

Last Updated on: June 22, 2023 by Apichet Garaipoom
Battery low voltage alarm indicator circuits

Why your circuit does not work? Because the battery is run out. These low voltage indicator circuits may helpful for you. If you can know before and change a new one right now. It makes you not have to waste time when using those projects. Read more

Categories Meters & Detectors Tags Battery indicators, Battery Testers 14 Comments

1.5V Battery Tester Circuit

Last Updated on: April 1, 2025 by Apichet Garaipoom

This 1.5V battery tester circuit uses the LM324 to measure 1.5V / 1.2V AA or AAA batteries. The batteries’ charge is displayed using 8 LEDs. Read more

Categories Meters & Detectors Tags Battery Testers, LM324 1 Comment

My E-books

Elec-Circuit-Vol1
Elec-Circuit-Vol2
Elec-Circuit-Vol3
Elec-Circuit-Vol4

About ElecCircuit.com

Electronic Circuits and Mini Projects. We made the ElecCircuit.com, to share our learning experiences on electronics circuits in simple ways.

Categories

  • 555 Timer (29)
  • Amplifiers (78)
    • Preamplifiers (19)
  • Basic Electronics (76)
  • Battery Chargers (16)
  • Controls & Timers (59)
    • Motor Controller (8)
  • DC converters (20)
  • Digitals & Microcontrollers (40)
  • Inverters (13)
  • Lennie (2)
  • Lightings (30)
  • LM317 (12)
  • Meters & Detectors (61)
  • Oscillator circuits (36)
  • Power supply (86)
    • Switching Mode (14)
    • Variable Supply (18)
  • Recycling electronics (9)
  • RF – Radio Circuits (18)
  • Solar cell (7)
  • Sound Generators (16)
About | Contact | Privacy policy | SEARCH

Copyright © 2025 · ElecCircuit - All Rights Reserved