Overcurrent / Over-discharge Protector for Lead Acid Batteries
https://www.electronics-lab.com/project/overcurrent-over-discharge-protector-for-lead-acid-batteries/
The project described here protects and monitors a Lead-Acid battery against too-low battery voltage and over-current conditions. The circuit consists of MAX4373 current-sense amplifier with internal dual comparators and P-channel MOSFET in series with the battery and its load. It works as a normally closed switch which can be opened if the current-sense amplifier and […]
6V – 2.5Ah Sealed Lead-Acid Battery Charger
https://www.electronics-lab.com/project/6v-2-5ah-sealed-lead-acid-battery-charger/
This dual-level float charger was designed for a 6V (three 2V cells) 2.5Ah battery. D2 LED was added for visual indication of charge completion, D3 indicates power, D4 LED presents overcharge condition, etc. 6V lead-acid battery charger is built using the UC3906 chip. UC3906 contains all of the necessary circuitry to optimally control the charge […]
Dual-Level Float-Cum-Boost Charger with Pre-Charge for 12V – 3 to 6Ah Sealed Lead Acid (SLA) Batteries
https://www.electronics-lab.com/project/dual-level-float-cum-boost-charger-with-pre-charge-for-12v-3-to-6ah-sealed-lead-acid-sla-batteries/
This SLA Battery charger project is the right choice if you want to obtain maximum battery service life and capacity, along with acceptable recharge time and economy, constant current, constant voltage, and even charge a deeply discharged battery. The project contains all the necessary circuitry to optimally control the charging of valve-regulated lead-acid batteries. The […]
Low Voltage Lead Acid Battery Disconnect board – Prevents Deep Discharge Of 12V Lead Acid Battery
https://www.electronics-lab.com/project/low-voltage-lead-acid-battery-disconnect-board-prevents-deep-discharge-of-12v-lead-acid-battery/
This project helps to optimize the 12V lead-acid (SLA) battery life as it prevents the battery from going into deep discharge. It is very important to disconnect the load before the battery enters into deep discharge as this may destroy or damage the battery cells. The circuit shown here turns off the load before the […]
Lead Acid Battery Voltage Monitor using ATMEGA328
https://www.electronics-lab.com/project/lead-acid-battery-voltage-monitor-using-atmega328/
Monitoring the voltage level of a 12V Lead Acid Battery (SLA) is easy and simple with this project. The board is made using an ATMEGA328 micro-controller and 12 x 5mm LEDs. The ATMEGA328 microcontroller senses the analog voltage on A3 Analog pin and drives 12 LEDs connected to digital I/O pins of the chip. Input […]