Undgå korte opladningstider, da batteriet i vores enhed har det antal opladningstider, der er angivet af producenten. Avoid short charging times as the battery in our device has the number of charging times specified by the manufacturer. We will send high quality Dell Latitude E6540 4400mAh 6 Cell laptop battery compatible with listed model. This is finest quality laptop battery available in the market it will replace your faulty (original) laptop battery. You can expect optimum level of performance just like you were experiencing with your original laptop battery. The new Dell Latitude E6540 4400mAh 6 Cell laptop battery will meet all the specifications so you can experience a consistent performance out of your laptop. There is no need to worry about the reliability of the product as the replacement Dell Latitude E6540 4400mAh 6 Cell laptop battery we ship go through proper quality assurance processes. It is a perfect replacement battery, and on the top price is also very competitive. When we cranked it up to maximum, the E6540 gave us 41 fps, beating the 37 fps average. The Folio 9470M and the T530 were in a dead heat at 13 fps. Since 1982, PCMag has tested and rated thousands of products to help you make better buying decisions. See how we test.

At 271 lux, the E6540's display is plenty bright, outshining the 212 mainstream notebook category average and both the ThinkPad T530 (166 lux) and the Folio 9470m (165 lux). Vær opmærksom på driftstemperaturen. Temperaturen er en ekstremt vigtig faktor, der påvirker vores batteris levetid. For at sikre optimale temperaturer bør du regelmæssigt rengøre din bærbare computers varmeafledningssystem (med trykluft eller en kompressor) og undgå at bruge enhederne på bløde overflader (som kan blokere køleventiler).Tillad ikke fuld afladning. Nutidens lithium-ion- og lithium-polymer-batterier er ekstremt følsomme over for dybafladning. Gentagen gentagelse af en sådan situation kan forårsage uoprettelig skade på batteriet. In keeping with current IT trends, the Latitude E6540 is available with either Windows 7 or Windows 8, to more easily integrate into your existing fleet without any unexpected compatibility issues. Our own review unit came with Windows 7 Pro preinstalled, along with a On the 3DMark11 benchmark, the E6540 notched 2,433, nearly doubling the 1,231 mainstream average. The Lenovo ThinkPad T530 and the HP EliteBook Folio 9470M and their Intel HD Graphics 4000 GPUs scored 625 and 594 respectively.

Do not allow full discharge. Today's lithium-ion and lithium-polymer batteries are extremely sensitive to deep discharge. Repeated repetition of such a situation can cause irreversible damage to the battery.The potent processor shone through in multimedia tests, cranking through Handbrake in a mere 45 seconds, and finishing our Photoshop test in 4 minutes 50 seconds. Solid graphics and gaming scores also tell you that, while it may not boast the ISV certification of a Workstation, the Latitude E6540 will still handle all of your visual and media tasks with ease, thanks to an AMD Radeon HD 8790M graphics card.