The Latitude D620 is equipped with the latest Intel®  Centrino®  Duo Mobile Technology: an available dual-core Intel®  Core™2 Duo processor, choice of Intel 945 GM or 945 PM chipset and Intel PRO/Wireless 3945 Wi-Fi®  mini-card. These components ensure to get the best possible mobile performance while using less battery power than previous-generation technologies. Choose a 6- or 9-cell battery and take advantage of the power savings features of Centrino®  Mobile Technology to stay productive longer. Plus, you can quickly and easily customize your power settings with Dell QuicksetTM  software.

Sunvalleyus Dell Latitude D620 batteries and chargers come with 6 months warranty and 100% compatibility guarantee. Physically, this item is nearly identical to the Dell branded battery. There are no quality issues at all. It does have the battery meter on the bottom, just like the original one. This high capacity rechargeable battery definitely disposes of more power than the original rechargeable battery included in delivery of the unit. This rechargeable battery can be used instead of the original rechargeable battery without any problems and can be recharged with the available standard power supply. The rechargeable battery is protected and secured against overcharge and short-circuits.

Features of Dell Latitude D620 battery :
Voltage: 11.1V
Capacity: 4400mAh
Type: Li-ion
Number of cells: 6
UL certificated cells inside!
100% OEM compatible, guaranteed to meet or exceed OEM specifications!

Does your Dell Latitude D620 battery seem to only last an hour when you use it? Promises of 6-8 hour battery life spans were calculated under ideal circumstances. However, the average user is much more demanding on their laptop. So how to increase and extend your laptop battery life?
There is always a guide for the step ahead:

Step 1 Eliminate any extra programs running in the background. Although these applications can't be seen, they are still using energy to run.

Step 2 Dim your screen to the lowest level tolerable. A bright screen uses a significant amount of power.

Step 3 Avoid leaving CD's or DVD's in your drives. When you start your computer up these disks take up valuable power being read and loaded. Every tiny bit of power counts.

Step 4 Keep your Dell Latitude D620 battery connections clean. Dirty or corroded contacts can drain power even when your laptop isn't currently on.

Step 5 Add more RAM to your laptop. This will help you use ""real memory"" instead or virtual memory. Virtual memory uses more hard drive and energy space. Adding additional RAM can be expensive, but is a great way to extend the battery life of your laptop.

Sunvalleyus strives to make your computer battery purchase easy. Since finding the right batteries for your needs can be overwhelming and confusing at times, it has developed a laptop battery search tool to help find the right size for the make and model of your equipment. It also offers educational articles and tips to help you conserve your notebook batteries and fix common problems. All in all, buying a cheap replacement like this is worth saving money on dell's prices.