Power supplies can be used with batteries, but they will not charge them; for that, you need a battery charger. Another difference is that power supplies typically have higher wattage ratings than battery chargers.
There is a big difference between a power supply and battery charger. A power supply provides power to an electronic device, while a battery charger charges a battery. A power supply converts AC or DC into low-voltage DC, which is then used to power an electronic device.
Once you have confirmed that it is safe to use your power supply as a battery charger detailed, connect it and begin charging. Be sure to monitor the charging process closely and disconnect when finished. Overcharging can damage both your power supply and your battery, so it’s important not to leave it connected for too long.
A power supply is a device that provides electricity to an electrical device. It converts one form of energy into another, typically converting AC (alternating current) into DC (direct current). Power supplies are used in a wide variety of electronic devices, from computers and servers to cell phones and tablets.
You can actually charge your 12V battery with a standard power supply. Make sure that your power supply is set to the correct voltage. Most power supplies have multiple settings, so be sure to check that it’s set to 12V before proceeding. Connect the negative (black) lead from the power supply to the negative terminal on the battery.
Make sure that your power supply is set to the correct voltage. Most power supplies have multiple settings, so be sure to check that it’s set to 12V before proceeding. Connect the negative (black) lead from the power supply to the negative terminal on the battery. Plug in the power supply and flip the switch to “on.”