How long is 48 whr

Thread starter sylvia Start date May 13, Forums Hardware Components. JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.

Previous Next Sort by votes. Sep 27, 2 0 10, 0. I know that two measures that used to state the power rating of a laptop battery is capacity and voltage, but i don't know the whr. I found the 56 whr printed on my battery, and i wonder How long is 56 whr last? Is that a hour battery?? What is the WHr stand for indeed? Does the bigger number mean the longer run time, thanks very much!!!

Sep 12, 7, 0 27, Watt hours are a measure of power over time and is a measure of capacity. If the laptop is pulling 56W it would last an hour. If it's pulling 5. The amount of power drawn will vary drastically between idle and full load, different power states, wifi being active, screen brightness etc. The capacity only affects the maximum and minimum run time, which will vary by several hours.

Oct 13, 0 18, 6. Judging by your question i'm going to go under the assumption you have an average level of battery understanding. Watt hours WH : It's not a standardized measurement unit so your not going to see it everywhere. You are far more likely to see mah milli-amp hours It's the total amount of electricity that you can pull from the battery. To answer part of your question, yes, the bigger the number the longer your battery will last. It's impossible here to say how long that will last.

There are far too many variables. Over time the battery slowly loses its capacity and reducing the amount of energy stored in it. Once there open it. Under installed batteries, there is design capacity and full charge capacity. Proceed to use the full charge capacity in your calculations. Note: Design Capacity in laptop batteries, in this case, the maximum amount of energy it can store when its brand new.

BatteryInfoView is a good software that provides a lot of information on your battery. You can download it here. You can then read the full charge capacity and use it in your calculations. The most important information it presents is the battery wear level. The battery wear level tells you the battery capacity remaining of its design capacity or when the battery was brand new.

It is given in percentage. Laptop batteries are not meant to last forever. They normally last two to five years. It could be more or less depending on its charge cycles, how often you use it, battery capacity etc. You if you several Google Chrome tabs open, playing music and Wi-Fi on its going to be a lot less when you are only playing music. Also, not all laptops are manufactured equally. Gaming laptops are known to have the worst battery life whilst ultrabooks have the best.

These are the basics of estimating your battery life. Remember these are just estimates and provide a quick way to tell how good battery life is. The best way on how to estimate or know the battery life of the laptop is by watching and reading reviews on it. To be honest, manufacturers like to exaggerate the battery life of their laptops. Contents hide. Battery Info View. Your subscription could not be saved. That's the energy stored in the battery, which is completely not related to time.

The larger the number, the more energy it supplies. 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.

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