Here you can get How to Using a car battery charger.
Frequent short trips, with constant stopping and starting, make your battery work very hard, especially in winter when heater, headlights , heated windows and wipers could also be working most of the time. Eventually, because more current is being drained from the battery than the alternator can replace, the battery won’t have enough power left to turn the starter. A battery therein state of discharge is said to be flat.
A flat battery are often avoided if you’ve got A battery charger – a relatively cheap, but worthwhile accessory. It uses mains current to exchange the battery’s lost charge through positive and negative leads that clip to the corresponding battery posts.
How to charge a battery
An average automobile battery features a capacity of around 48 amp hours which suggests that, fully charged, it delivers 1 amp for 48 hours, 2 amps for twenty-four hours, 8 amps for six hours then on. A basic charger usually charges at around 2 amps – then needs 24 hours to deliver the 48 amps needed to completely charge a flat, 48 amp hour battery. But there’s a good range of chargers with different charge rates on the market – from 2 to 10 amps. the upper the charge output, the faster a flat battery is recharged. Fast charging, however, is undesirable because it can buckle the battery plates.
The loads imposed on your battery could also be gauged from the quantity of current employed by the varied electrical components: headlights take about 8 to 10 amps, a heated car window about an equivalent. Theoretically, a totally charged battery, without taking in current from the generator , should work the starter for about ten minutes, or the headlights for eight hours, and a heated rear window for 12 hours. because the battery nears full discharge, the lights gradually grow dimmer and finally leave altogether.
There also are causes aside from short trips and weather which may affect the state of your battery. Failure is more common on cars equipped with a dynamo instead of an alternator, because the alternator produces more electricity and charges better at low engine speeds (See How the charging system works ). The answer in all these cases is frequent testing with a hydrometer (See Checking the batteries ) to ascertain what proportion capacity is left within the battery, and using a charger to top up its charge when necessary.
Obviously before you start , you’ll got to acquire A battery charger. Not all chargers are an equivalent so you ought to familiarize yourself with your particular model before using it. Inspect the instructions and make sure you understand how the charger works and what each button, dial or reading is employed for.
Step 2: Connect the Charger to the Battery
Once you’re familiar with the fundamentals of your charger , you’ll now connect it to the vehicle’s battery. you’ll charge the battery while it’s still inside the car or if it’s been removed, either method is ok . First attach the positive (red) clamp to the positive post on the battery. The positive post will have a “+” indicator thereon . Next attach the negative (black) clamp to the negative post on the battery. The negative post will have a “-“ indicator on it.
Step 3: Setting the Charger
Next, you would like to line the volt and amps on the charger. If you wish to slowly trickle charge the battery, you would like it set to a lower amperage than if quickly trying to start your car. Trickle charging is that the better method to use if you’ve got time, because it will do a far better job charging your battery. However, if you’re quickly trying to start out the car, you’ll want to use a better amperage.
Step 4: connect and Charge
Plug in the charger and let it do its work. you’ll be ready to set an amount of your time for the charger to figure , or it’s going to shut off automatically when it’s done. Either way it’s a good idea to not move the charger or play with the cord during this process.
Step 5: Disconnect
Once the battery is charged you’ll close up the charger, then unplug it from the wall. Next you’ll disconnect the cables within the opposite order in which you attached them. Negative (black) clamp first, the positive (red). Your battery should be all charged and you ought to be able to go.
Types of car battery charger
A basic home charger incorporates a transformer and rectifier, to vary the mains 110/220 volt alternating current to 12 volt direct current , and allows the mains supply to supply a charging current at a rate determined by the state of the battery. In the case of A battery in fitness , the speed of charge could also be around 3 to six amps with a traditional home charger.
A battery at the top of its useful life might not accept any recharging, and can not, in any case, hold a charge. Some chargers are fitted with a high and low (Hi-Lo) switch to offer a choice of two charging rates – typically 3 or 6 amps – just in case you would like to offer the battery a brief overnight boost at 6 amps instead of a extended charge at 3 amps.
Many have a charge indicator which can be a red light , or a gauge showing the charge rate in amps. Note that the mains lead on all chargers should be fuse d. If it’s not, use a three-pin fused plug. As an additional precaution, fit a line fuse cable lead to the battery.