How do you charge a 12V battery with a power supply?
To charge a 12-volt lead acid battery (six cells) to a voltage limit of 2.40V, set the voltage to 14.40V (6 x 2.40). Select the charge current according to battery size. For lead acid, this is between 10 and 30 percent of the rated capacity. A 10Ah battery at 30 percent charges at about 3A; the percentage can be lower.
Can I charge a 12V battery with a laptop charger?
Originally Answered: Can I use my 19.5V laptop charger to charge 12V dead car battery? Yeah, should work. Most laptop chargers are around 3 amps. Heat shouldn’t be a problem if you open the venting caps on the battery but it might explode acid in your face with the extra voltage so take appropriate safety precautions.
Can you charge a 12V battery with a 12V power supply?
YES, you can use 12V DC power supply for charging car battery. After charging for 18 hours, check battery voltage. If it is 11.5V or more, start engine (car) with it and keep it charging for at least 30 min.
Can you power a laptop with 12V?
Yes, tons of power is wasted going from 12V to 110V, especially when all you do is to stick it into a psu which also loses some power turning it back into low voltage DC. You can buy a DC/DC converter which will deliver a 9-20 V DC adjustable voltage when given 10-24 V DC input.
What happens if you charge a 12 volt battery with a 24 volt charger?
No, you are not supposed to charge a battery of 12volts with a charger of 24 volts, tremendous heat will be generated and the battery may explode.
Can you charge a 12 volt battery with a 15 volt charger?
If you use a 15 volt charger on a 12 volt battery it will work no matter what type of battery it is. But charging will be very fast, the battery will get hot, depending on the type it could get very hot or even explode! So if you do this, that is, use the 15 volt charger on the 12 volt battery.
Can I use PC power supply as a battery charger?
Sure! There’s just two issues to deal with. PC power supplies generate multiple voltages so you need to match that to the battery in question. The second is the charging cycle of Li-Ion and many other rechargeables must be managed.