Guide to Battery Chargers

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Kinds of Battery Chargers include the following:

Simple

• A simple battery charger works by connecting the battery to a constant DC power source.
• It does not alter its output based on the battery charge and charge duration.
• It is inexpensive.
• However, it can take a long time to charge a battery.
• It also tends to overcharge it.

• A timer-based battery charger relies on a specific pre-determined time to terminate the charge.
• It is intended for a set of batteries that has been timed to determine its charge duration.
• It cannot be used on lower or higher capacity batteries because it can under- or overcharge them.

• An intelligent battery charger tracks the output current depending on the battery’s requirements.
• It monitors the battery’s temperature, voltage, and charge to determine the optimum charge current.
• The charging automatically stops when a full charge is detected.

• A fast battery charger uses a control circuitry to rapidly charge batteries without damaging them.
• Most fast chargers use cooling fans to control the temperature of the cell elements.

• A USB-based battery charger provides a five-volt power supply using the Universal Serial Bus specification.
• It is used in devices with built-in USB plugs and circuitry.

Compatibility:  Choose a battery charger compatible with your battery’s make and model. It is advisable to buy an OEM charger, as the wrong one can potentially damage your battery.

Amperage: Look for a battery charger with a charging current 15% to 25% the capacity of the battery in Ampere-hours. It is better to charge a battery slowly than rapidly.   

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