How To Charge Car Battery At Home (With A Power Supply)

How To Charge Car Battery At Home (With A Power Supply)? Instead of using a bona fide battery charger to juice up your car battery, you can do it directly using a power supply unit (PSU). How?

  • This is certainly a last resort, not a veritable option. After all, if you have a perfectly sound battery charger, it is more reliable than a power supply to help recharge your car battery.
  • If you are left with the use of a power supply unit, be sure to make all the right connections. Take the terminals from the power supply unit and link them to the car battery in need of life.
  • You will need to get wires to help with this stage. They should be neither too thin nor too thick. Think of an average internet modem wire and you are on the right track.
  • Positive is red and negative is black. Affix the right colored terminal to the right node.
  • Turn on the power supply unit. The charging meters will show what they show, because they battery is on the way to being fully charged. Do not unduly worry yourself about measures and whatnot.
  • The battery could well be a 12-volt one or something around the 13-volt margin. You will see about 1 A (amps) being used to charge the battery. This is the rate of charging, which is slow but safe especially since you are using a power supply unit to fulfill this process.
  • These steps depend on the type and specification of your car battery more than the make of the power supply unit. If you push the voltage count to beyond 14, it will take a lot more amps of current to charge the car battery. This puts it in risk; fire, irreparable damage.
  • Whereas some battery chargers are capable of handling such loads, power supply units are not. The former have regulation-based shut-off options while the latter just pumps power based on what you have set.
  • You can alter the voltage to maintain it around 13.8 or even 14, and no higher. It takes roughly 1 Amp to carry on. Keep the charge applied until the car battery is charged.
  • The number of amps needed depends on how ‘flat’ the car battery is. 1 A is sufficient for half-charged batteries (or thereabouts) but if yours is completely drained, then the ampere reading will show 5 A, to offer an example of the rate at which it need to charge. When the amp reading goes back down to 0 consider your battery fully charged.

That is all there is to charging a car battery using a power supply unit. If you assumed this process entailed the use of direct electrical sockets, you were mistaken. Those are extremely dangerous and should never even be an option; cartoons spring to mind.

Keep an eye on the car battery to ensure it is not over-heating. The PSU (Power Supply Unit) will show an increase in heat, but that is to be expected. PSUs usually have a cooling fan on the inside to keep them below a threshold.

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