6V – 2.5Ah Sealed Lead-Acid Battery Charger
https://www.electronics-lab.com/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 […]
Low Voltage Lead Acid Battery Disconnect board – Prevents Deep Discharge Of 12V Lead Acid Battery
https://www.electronics-lab.com/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 […]
80V Buck-Boost charging controller with MPPT for solar panels
https://www.electronics-lab.com/80v-buck-boost-charging-controller-with-mppt-for-solar-panels/
The LT8491 from Analog Devives includes Maximum Power Point Tracking (MPPT) for solar panels, with algorithms, lead acid and lithium ion batteries up to 80V. Analog Devices (ADI) has introduced a buck-boost Maximum Power Point Tracking (MPPT) battery charging controller that includes algorithms for charging sealed lead acid, gel and flooded cells, and Li-Ion batteries up to […]
Lead Acid Battery Voltage Monitor using ATMEGA328
https://www.electronics-lab.com/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 […]
12V SLA Lead Acid Battery Charger Using BQ24450
https://www.electronics-lab.com/12v-sla-lead-acid-battery-charger-using-bq24450/
This project has been developed to charge SLA (Lead Acid Batteries). It helps to charge 12V Lead-acid battery up to 12Ah in capacity. The specific current output is possible by altering the current sense resistor. The BQ24450 chip contains all the necessary circuitry to optimally control the charging of valve-regulated lead-acid batteries. The IC controls […]
Free Elektor Article: 0-30V Lead-acid Battery Activator
https://www.electronics-lab.com/free-elektor-article-0-30v-lead-acid-battery-activator/
A well-known electronics store has been selling a very simple lead-acid battery activator for many years. Although I can’t prove it, my lead-acid batteries do seem to last longer since I started using the activator. The principle behind this circuit is very simple. The battery is loaded with a current of about 100 A for a […]
6V Lead Acid Battery Charger using BQ24450
https://www.electronics-lab.com/6v-lead-acid-battery-charger-using-bq24450/
6V Lead acid (SLA) battery charger project is based on BQ24450 IC from Texas instruments. This charger project takes all the guesswork out of charging and maintaining your battery, no matter what season it is. Whether you have a Bike, Robot, RC Car, Truck, Boat, RV, Emergency Light, or any other vehicle with a 6v […]
60V-input battery charger; Pb-acid & Li-ion charge algorithms up to 20A
https://www.electronics-lab.com/60v-input-battery-charger-pb-acid-li-ion-charge-algorithms-20a/
LTC4013 is a highly integrated, high voltage multi-chemistry synchronous step-down battery charger controller. With a wide input voltage range that spans up to 60V, the LTC4013 uses temperature-compensated 3- and 4-stage charge algorithms to efficiently charge 12V and 24V lead-acid batteries. By Graham Prophet @ edn-europe.com Alternatively, the LTC4013 will charge a multicell Lithium-based battery […]
Disconnect circuit for 12 volt lead acid and lithium batteries
https://www.electronics-lab.com/50967-2/
KA7OEI designed a circuit that disconnects the battery when it over-discharges. He writes: The avoidance of overcharging is usually pretty easy to avoid: Just use the appropriate charging system – but overdischarge is a bit more difficult, particularly if the battery packs in question don’t have a “protection board” with them. Lead acid batteries (almost) […]
Lead Acid Battery float charger
https://www.electronics-lab.com/battery-float-charger/
Nobilis @ instructables.com has build a lead acid float charger out of an old phone wall charger: If you do not use your motorbike on the winter or your car stands for weeks — you better have a float charger connected to the battery. Otherwise you probably encounter engine starting problems, and your battery’s lifetime […]