Battery charger how long

Reserve capacity is measured in minutes, so you should end up with a good estimate for how long your car needs to be at full capacity once again. Different amp chargers are out there. Each one charges car batteries at different rates. Naturally, the higher the number on your amp charger, the faster your battery charges. For the following examples, let's assume your battery has a reserve capacity of minutes. In each instance, you multiply by 0.

If your battery has 60 amp hours, then a 2 amp charger requires 30 hours to fully charge your battery. To determine this, you just divide the number of amps by the amp hours. When you use a 4 amp charger, it would take you 15 hours to fully charge a battery with 60 amp hours.

A 50 amp charger can get your car back on the road in no time. It would only take 1. A 50 amp charger sounds great. But you should be wary. At that rate, there's a risk of overheating the battery. Higher amps means a faster charge. Problems are more likely to arise if you leave the charger connected long after the battery is fully charged.

No matter which charger you use, you should always promptly remove it once the battery has a full charge again. You can avoid this danger by sticking with a slower charger. A 10 or 12 amp charger gets the job done safely in a reasonable amount of time. Something strange may occur when you attempt to charge your car battery.

You may realize the battery doesn't hold a charge. At this point, you're better off replacing the old battery with a new one. If you have all the safety supplies you need, then it typically takes about 15 minutes to do all this. In the event you don't feel comfortable doing this, you can take your car to an auto shop to get it done. There's no need to replace the battery if there's something else causing issues in your vehicle. Follow these steps when recharging a battery.

Step 1: Determine how long to recharge a battery by calculating how much capacity your battery has. In order to calculate the amount of amp - hours in a battery , multiply the reserve capacity by 0. In the case of a MT, minutes RC x 0. Step 2: Before charging a battery , use a voltmeter to measure the remaining voltage in the battery. For example, if the voltmeter shows a voltage reading of This means there are about half of the 72 amp hours in the battery. Step 3: Charge the battery at a amp rate.

Take the amount of amp-hours needed by the battery and divide it by 10 amps. The most common reason is that you forgot a light or something similar in the car before leaving it. It can also be a problem with some electrical consumer that does not want to switch off when you turn off the ignition. Also, a bad car battery can cause your battery to drain.

To learn more about the different causes, you can see out an article about the main reasons why your car battery is flat. How long it will take for your car to charge the battery depends a lot on the car engine and the size of the car battery. Cars have very different effects on the alternators, giving everything from 30 to amperes. If you want to charge your car battery fully with your alternator, you can expect it to take some hours. It is always recommended to charge your dead car battery with a car battery charger instead of the engine though.

First, you have to figure out what type of battery charger you need. Maybe you need a fast one or just a maintenance charger? Modern chargers are easy to connect and have battery charging monitoring, which will regulate the amps themselves. Cheaper chargers do often promise more amps than they charge with. It will save your car battery, and it will minimize the risk of damage to your vehicle. Ask any car question in our new community! Magnus is the owner and main author of MechanicBase.

He has been working as a mechanic for over 10 years, and the majority of them specialized in advanced diagnostics and troubleshooting. Certified Automotive Diagnostic Technician. My question is what is the best ctek battery charger for this battery. I seldom drive the truck, sometimes leave it in the garage for the winter and it still starts after the winter. I recently went out to started after it hasn't been run for about a month and it was dead so rather than use jumper cablesc is there ctek charger you would recommend?

I'm looking for the best quality and easiest to operate charger. Thank you. M y Seat Ibiza has been stood for 3 weeks. It is a sealed battery and the battery indicator is black. Is it dead or can I trickle charge? Thank you in advance. My battery is my battery is fully charged and it will start the car the same day however when I start my car the next day it will not start what is a problem. Sorry for random question on fbook. If you are familiar with the batteries can you tell me a battery charger controller which will cut off the charging power source to avoid the battery to be overcharged.

They told me that overchaging the battery is not good and I am not going to wait hrs for my battery to be full charged. I may even charge it overnight which means I cannot monitor the charging percentage.

Do I have to drive my car right after I charged it? Or can I Waite til the next day to drive it? Had a new radiator installed and drove it around town no problems. But then it has sat for a few days. Last 2 days the battery is dead. Could it be from not having driven it much so the charge is gone? I cleaned the terminals and the posts. How long will it take to charge and do you think it could be something else?

I also live on the desert and rodents are a pain in the ass. Thanks for your input. If I'm charging a battery thats half in the yellow using a 10 w how long would it take to start it? My explorer battery was dead last week and i took it 2 have it checked and they said it was a bad battery so i got a new one and now i tried 2 start my suv n its a week later and the car only unlocked the doors n nothing else so the battery is dead again. I am charging it and im not sure how long i need 2 charge it 4 and what the problem might be.

Hello, is it better to take my car to tire plus to charge my car battery complely? Hi there!