No more worries about running out of battery power! With a capacity of up to 47 WHr, the battery lets your laptop work seamlessly when you are on the move. Show More. Free Shipping. Compare Compare. Provides 47WHr capacity Offers reliable power for dependable performance Compatibility Genuine Dell-branded parts undergo rigorous testing by qualified engineers to ensure compatibility and reliability in your Dell system.
Our sustaining qualification process allows for testing and certification of the newest technology on your Dell system. However usage time depends on the power consumption, not energy. On the same energy level, the higher the power, the shorter the battery lasts.
Every computer has different power requirements so the time varies. The power isn't even fixed during runtime but varies depending on the CPU load and peripheral devices usage. But another 15W laptop can run on the same battery for 4 hours. As an electrical engineer specializing in technology and automation; Unfortunately the answers above are about as close as you are going to get without more technical data on the system, peripherals, and typical usage stats.
Just as with cell phones, idle time vs on the web vs on a game vs on an actual phone call I would suggest carrying a back-up battery pack, again, the higher the mAh number the longer the additional time permitted with this device plugged into you equipment. Dell offers a mAh pack that is compatible with many of their laptops, I am not sure of other manufacturers. Li-ion battery, 4 cells refers to how many 3. So it 5. So if I used a. Sign up to join this community.
The best answers are voted up and rise to the top. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Learn more. What is a WHr watthour? Ask Question. Asked 8 years, 2 months ago. Add to Cart. Compare Compare. No more worries about running out of battery power! With a capacity of 47 WHr, the battery lets your laptop work seamlessly when you are on the move.
Compatibility Genuine Dell-branded parts undergo rigorous testing by qualified engineers to ensure compatibility and reliability in your Dell system. Dell sustaining qualification process allows for testing and certification of the newest technology on your Dell system. Quality Dell uses only OEM grade quality components.
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