dell laptop battery

Laptop batteries last about four to six years. Then they make - like the beginning of the cold season - flabby. We tested eight batteries

Laptop batteries do like to limp at the start of winter. The reason: At low temperatures the chemical processes run more slowly, and the aged cells provide less power.

Most batteries to terminate her early end when you start the engine by lifeless organs of the starter, before they fail completely in service. Frequently, however, also lead deep discharges and cold temperatures in the Winter the sudden battery death. Then go from now on equal anything. Good advice, then, who sought time to suitable replacement.

When choosing the right laptop Battery should pay attention not only on the correct fitting size, but also by the laptop manufacturer required battery capacity. For small batteries are quickly overwhelmed, too much can cause damage to the alternator and the vehicle electronics.

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To determine the performance and quality differences from brand and generic products, we bought eight different DELL Studio 1537 battery models in auto parts stores, in stores and hardware stores. We chose lead-acid batteries in the range 70-72 amp hours (Ah) from. Batteries of this capacity are most frequently used in small laptops and compact models, such as VW Golf or Opel Astra.
Battery test in the cooling chamber

To guarantee an objective evaluation, we were all batteries on a special battery tester of the FACT GmbH Automotive Technical testing and engineering center study Heimertingen. Here, the technicians tested the capacity and the strength at discharge.

Equal to one of the first test cycle was sobering: No battery reached after full charge it the rated capacity. The best test candidate, Exide Battery, reached 92 percent (that is 66 Ah), followed closely by the minor (64 Ah), while the worst came to the Arctic, only 54 percent - instead of 70 so have provided only 38 ampere hours.

Much better, however the Dell Vostro 1510 battery cut off in cold weather. For the Cold start tests We banished the subjects in the cooling chamber. Here they had temperatures of minus 20 degrees Celsius endure for twelve hours before we finally kicked the cold-start tests and high power demands.
Winterizing laptop battery

As a leader in this discipline turned out to be our Test winner, The sunshine battery. After this cold-torture she put with 36 amp hours at least another 55 percent of its rated capacity available. So that 16 energy-sapping engine starts were behind the other possible. The DELL Latitude D630 battery of minor cut well in this respect with 14 possible cold start. The result for both power packs so indicated on a Good winter performance out. The Arctic High Tech (worst in the test), however managed just seven cold starts.

In terms of durability (cycle life) reached the sunshine - followed closely by Perion battery - the best values. The Max Bahr, the Exide Premium, the minor, Varta and Bosch Silver impressed here too. In the end, reached the minor battery - after various Deep discharges - The best energy storage. So they ended up in our test on the third.

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When Endurance test (Current consumption, z: B. accidentally left the lights on) was again the sunshine Dell Inspiron 6400 battery in front, followed by Max Bahr, Bosch Silver S4, Perion and Varta Blue Line. Last again in this discipline, the Arctic High Tech, which is available at ATU. This battery was two and a half hours earlier than the winner of sunshine.

Conclusion: Clear winner is the Dell Inspiron 1501 battery of sunshine in four disciplines, she cut off with the best values. Second-placed battery, the premium of Exide scored, with the best capacity and the highest number of discharge cycles. With consistently good results convinced the minor battery, thus securing third place. Loser Arctic reached just 222 of 500 points.
Holger Ippen

How we test
In collaboration with the Society for Technical Supervision GTü and subjected FACT GmbH Automotive Technical testing and engineering center, we eight batteries a test stand and cooling test. We have simulated and measured the electrical load capacity.