An efficient energy-management system for Lead Acid Battery, using Matlab and Arduino, was developed and tested. The system uses an ACS712 sensor to detect current and voltage in the circuit...
Lead-acid batteries are finding considerable use as both primary and backup power sources. For complete battery utilization, the charger circuit must charge the battery to full capacity, while minimizing over-charging for extended battery life.
Charging a lead acid battery is a matter of replenishing the depleted supply of energy that the battery had lost during use. This replenishing process can be accomplished with several different charger implementations: “constant voltage charger” , “ constant current charger” or a “ "multistage" constant voltage/current charger”.
A simple lead acid battery charger system was designed successfully. The proposed charger can work in constant voltage or constant current mode although constant voltage mode is the most preferred. The battery charger has many advantages like successful 3-stage charging, over charge protection, battery discharge protection and a simple design.
Lead-acid battery chargers typically have two tasks to accomplish. The first is to restore capacity, often as quickly as practical. The second is to maintain capacity by compensating for self discharge. In both instances optimum operation requires accurate sensing of battery voltage.
Four LED’s are used to indicate the status of battery charge. This circuit was simulates using a simulation software called Multisim, a product of National Instruments. CHAPTER 1 INTRODUCTION INTRODUCTION A battery chargeris a device used to put energy into a cell or (rechargeable) battery by forcing an electric current through it.
When a typical lead-acid cell is charged, lead sulphate is converted to lead on the battery’s negative plate and lead dioxide on the positive plate. Over-charge reactions begin when the majority of lead sulphate has been converted, typically resulting in the generation of hydrogen and oxygen gas.