1024 Wh To Mah (2024)

FAQs

How many mAh are in a Wh? ›

Jackery Explorer 240 features 240Wh capacity, which theoretically equals to 67000 mAh capacity.

To convert Wh to mAh, use the formula: mAh = Wh ÷ V x 1,000, where V represents the voltage of the battery. Thus, a 5Wh battery operating at 5 volts would have a capacity of 1,000 mAh. Always ensure you know the battery's voltage for accurate conversion.

The actual capacity of a power bank is about 2/3 of the capacity indicated. The rest disappears due to voltage conversion or is lost during charging, especially as heat. This means that power banks with a 10,000 or 20,000mAh battery actually have a capacity of only 6660 or 13,330mAh.

Incidentally, the 9.62Wh rating is the current times the voltage times the time. So in this case the voltage times the current times the lifetime is 9.62Wh. If the battery voltage $V$ was constant the 9.62Wh would just be the 2.6Ah times $V$ (so presumably the battery voltage is around 3.7V).

1000 mAh is equal to a 1 Amp Hour (AH) rating.

The average battery capacity of a standard smartphone falls below 4,000 mAh. So, a power bank with a 10,000 mAh capacity (actual capacity 6,000-7,000 mAh) is enough to fully charge most handsets at least once and charge small phones like the iPhone 12 mini three times.

To estimate battery life, divide the battery's capacity (6000 mAh) by the device's current draw (in milliamps). For example, if a tablet consumes 1200 milliamps per hour, the 6000 mAh battery would last approximately 5 hours (6000 mAh / x 1200 mA = 5 hours).

Watt-hours typically represent the energy used or created by any electric system. It may be easier to think of watt-hours as a battery's energy capacity. It's used to determine how much energy you can store in a cell phone battery. A single watt-hour is represented by the formula energy = power * time.

How much Wh is 20,000mAh? ›

An Amp-hour, also denoted as an Ampere-hour, is a measure of charge and equates to current flow over time. One Amp-hour is equal to one amp of continuous current flow for one hour. A milliamp-hour, or milliampere-hour, is one thousandth of an amp-hour, therefore a 1000 mAh battery would be equal to a 1 Ah battery.

1 hour of battery life is quite short, but it can happen in several ways. With a 48WHr battery, you should be getting 3–5 hours of battery life.

For example a laptop that has an average power of about 20W uses a 60Wh battery will have 60Wh/20W = 3h of life time. But another 15W laptop can run on the same battery for 4 hours.

The watt-hour, which is symbolized Wh, is a unit of energy equivalent to one watt of power expended for one hour of time. The watt-hour is not a standard unit in any formal system, but it is commonly used in electrical applications. An energy expenditure of 1 Wh represents 3,600 joules or 3.600 x 10³ J.