What is the difference between a battery charger and a power supply?

While power supplies and battery chargers may seem similar in that they both provide DC power, they are not interchangeable. A power supply is designed to provide a continuous supply of power to a device, whereas a battery charger is designed to charge a battery, which will subsequently provide power to a device when mains power is unavailable.

Can you use a power supply as a battery charger?

Charging batteries requires precise control over the charging rate and a full understanding of the battery's chemistry to prevent damage. Therefore, using a standard power supply as a battery charger is not recommended and can be hazardous. So, which of these is right for your needs between a power supply vs battery charger?

What is a power supply (PSU)?

A power supply (PSU) is an essential component that converts alternating current (AC) from the electrical outlet into direct current (DC) that can be used by electronic devices. It regulates the voltage and current to provide a stable power output, ensuring the connected devices operate consistently and safely.

How do I choose a power supply?

Compatibility with your power source is crucial when integrating a power solution into your existing system. Power supplies usually operate on standard AC mains power and convert this to a usable DC output for your devices. Ensure that the power supply you choose can handle the input voltage and frequency of your local power grid.

What protection do I need in a battery charger or power supply?

Your specific use case will dictate which levels of protection or which specific safeties you need in a battery charger or power supply. Power supplies are equipped with various certifications such as overvoltage, overcurrent, and short-circuit protection to safeguard the connected devices and prevent damage.

What is the difference between a battery charger and a rechargeable battery?

On the other hand, a battery charger is a device specifically designed to replenish the charge in rechargeable batteries. It supplies a controlled amount of current to the battery, ensuring that it charges safely and efficiently without overcharging, which can be detrimental to the battery's health.