A battery for a car!

A good battery,not like a Dell latitude d630 battery of dell laptop, is critical to the car to start, especially when it is really cold outside. In recent years there have been more batteries of low-cost model, often of varying quality.

Swedish National Testing and Research Institute (SP) has been commissioned by the Test Facts tested 13 common car batteries. The test includes the following elements:
Capacity at a temperature of plus 25 degrees and minus 20 degrees.
Persistence of severe cold.
The heat in the cold.

The test shows that there is a gap between the worst and the best Apple powerbook g4 batteries, "says civil engineer Joakim Lind Flowers by SP, which was responsible for the test.

Car battery is to run the car's starter.

Can the bad batteries to start a car at minus 20?
I think it would be very difficult. They do not have the power necessary, "said Joakim Lind Blom.

One of the test sections were battery power at a temperature of plus 25 degrees. After having been charged for 60 seconds was clearly the most expensive apple macbook pro battery of tests, Dekas, most power remains.

In second place came one of the batteries from Nordstrom and the third one from Global. Lowest power had left the test cheapest battery, Fiamm sold by Arm. None of the batteries fell, however, the effect is expected be needed to start a Volvo V70 with a five-cylinder petrol engine.

To investigate how the batteries are working under much tougher circumstances, such as a cold winter morning, tested battery power at a temperature of minus 20 degrees. After having been charged for 60 seconds can not handle five of batteries to supply sufficient power to start the car. After two minutes, only one of the batteries to reach the critical threshold, Varta D21.

According to the test, it is not much difference in the battery's ability to recharge.

SP conducted the test using the new and fully charged batteries.

A car battery in normal operation, however, is often only charged to about 70 percent, which means that more of the batteries tested in real life probably would have been much more difficult than what the test shows that clear repeatedly tries to start at minus 20 or lower.

Today there are quite a few apple macbook pro 15 inch batteries for quite low prices, but you get about what you pay for, "says Morgan Isacsson is a test engineer at the Swedish inspection research and education department.

Should I stay or are staying a lot in an area where it is cold, I would invest in a quality battery. But that is not enough. It is also important that as the car's alternator is good for the car to start. Do you have a bad alternator, no matter how good the battery you have, "he says.

According to Joakim Lindblom at SP should not be a battery drain completely.

Those who do not regularly run long distances should therefore ensure that the battery and then recharged using a charger.

It's also good to periodically check the state of charge using a "hydrometer. If fluid weight in any of the battery cells is markedly lower than in the others it may be time to replace the battery.

This article via: solarchat.