Watt-Hour To Milliamp-Hour (Wh To mAh) Conversion

Watt-hours, milliamp-hours, kilowatt-hours, and volts are common power and energy measuring units for electrical appliances and battery capacity. Using some simple formulas, you can easily convert Wh to mAh or vice versa.

When you plan to purchase a solar power station or a solar generator, it's vital to calculate the watt-hour and milliamp-hours. These units will help you understand how long the power station will charge your appliances or how quickly it will deplete.

A higher mAh and Wh rating battery can power your appliances for a long time before you'll need to recharge. Jackery Explorer Portable Power Stations have high Wh and mAh values, so you can keep your home or outdoor gear charged for more time.

wh to mah conversion with jackery

In this guide, we will walk through what are watt-hour and milliamp-hour and how to convert mAh to Wh.

What Is Wh to mAh?

In layman's terms, watts represent the power any device takes to function. Watt-hour is the energy consumed by an appliance over a certain time period. The capacity of solar power stations is measured in watt-hours. It represents how much energy it can supply to devices in an hour.

Jackery Explorer Portable Power Stations have large battery capacities to keep your gear charged. For instance, you can choose Jackery Explorer 1000 Pro Portable Power Station to power basic home appliances, while Jackery Explorer 3000 Pro Portable Power Station can power 99% of most home electrical appliances.

A milliampere hour (mAh) describes the electric power over time and is commonly used to measure a battery's capacity. If a battery has a high mAh, the longer will be the battery capacity or life.

To convert Wh to mAh, divide the watt-hours by volts and multiply the equation by 1000.

Formula: Milliamp-Hour = Watt-Hour ÷ Volts / 1000

Abbreviated Formula: mAh = Wh ÷ V / 1000

Converting a battery's watt-hours to milliamp-hours is particularly helpful in deciding how fast you want to charge the power station. It can also help you estimate the battery's charge time to understand how long it will take your charger to power the battery. Lastly, the milliamp-hours help you to evaluate the battery's runtime, considering you know the current drawn by the appliance.

How to Convert Wh to mAh?

If the battery capacity is in watt-hours and you want to convert it into milliamp-hours, you will have to use a simple formula. As the direct conversion of Wh to mAh is not possible, you must include battery volts during the conversion.

Here is the mathematical formula to calculate the milliamp-hours, given that you have its watt-hour.

Q (Ah) = Wh ÷ V

To convert Ah to mAh, multiply the resultant by 1000.

Q (mAh) = Q (Ah) × 1000


Let's say you are using Jackery Explorer 1000 Pro battery capacity is 1002Wh, and the voltage is 43.2V. The milliamp-hours will be:

Q (Ah) = 1002 Wh ÷ 43.2 V = 23.2 Ah

Or, Q (mAh) = 23.2 Ah × 1000 = 23200 mAh.

That said, the portable power station has a 23.2 Ah battery.

Converting watt-hours to milliamp-hours assists you in understanding the battery's charge time. The larger the mAh battery of the solar generator, the more electrical energy it can store.

The Wh to mAh conversion table:

Watt Hours (Wh)

Voltage (V)

Milliamp Hours (mAh)

1 Wh

3.7 V

270.27 mAh

5 Wh

3.7 V

1351.35 mAh

10 Wh

3.7 V

2702.7 mAh

20 Wh

3.7 V

5405.41 mAh

25 Wh

3.7 V

6756.76 mAh

40 Wh

3.7 V

10810.81 mAh

45 Wh

3.7 V

12162.16 mAh

50 Wh

3.7 V

13513.51 mAh

75 Wh

3.7 V

20270.27 mAh

100 Wh

3.7 V

27027.03 mAh

How to Convert mAh to Wh?

Generally, the device's battery capacity is in milliamp hours, and you must convert it into watt-hours. However, converting mAh to Wh is simple if you have battery volts.

Formula: Watt-Hour = Milliamp-Hour × Volts ÷ 1000

Abbreviated Formula: Wh = mAh × V ÷ 1000

Example 1:

Let us take an example of how to convert mAh to Wh.

Suppose you use a power station with a battery of 35000 mAh and 43.2V. You can substitute the values in the above formula.

Watt-Hour = 35000 mAh × 43.2V ÷ 1000 = 1512 Wh.

Example 2:

Suppose you use a smartphone with a 4500 mAh battery capacity in milliamp-hour and 3.7 V voltage. You can easily calculate the watt-hours by using the same formula.

Wh = 4500 mAh × 3.7V ÷ 1000 = 16.6 Wh

Converting mAh to Wh will help you compare the battery capacities of power stations or power banks with different voltages.

The mAh to Wh conversion table:

Milliamp Hour (mAh)

Voltage (V)

Watt Hours (Wh)

1 mAh

3.7 V

0.0037 Wh

1000 mAh

3.7 V

3.7 Wh

1200 mAh

3.7 V

4.44 Wh

2000 mAh

3.7 V

7.4 Wh

2500 mAh

3.7 V

9.25 Wh

3000 mAh

3.7 V

11.1 Wh

4000 mAh

3.7 V

14.8 Wh

4500 mAh

3.7 V

16.65 Wh

5000 mAh

3.7 V

18.5 Wh

How to Convert kWh to mAh?

Kilowatt-hour or kWh is the measure of electrical energy equal to one thousand watts of power consumed in one hour. You can easily convert kWh into mAh using the below formula.

Formula: Ah = kWh × 1000 / V

The battery's electrical charge in amps is equal to the energy in kilowatt-hours times 1000, divided by voltage.

Let us take a simple example to understand better.

Suppose you want to convert 1kWh to mAh, where the battery voltage is 12V.

Ah = 1kWh × 1000 / 12V = 83.33 Ah

To convert Ah to mAh, multiply by 1000.

mAh = 83.33 Ah × 1000 = 83,330 mAh.

The kWh to Ah and mAh conversion table:

Kilowatt Hours (kWh)

Amp Hours (Ah)

Milliamp Hours (mAh)

0.01 kWh

0.83 Ah

830 mAh

0.02 kWh

1.67 Ah

1,670 mAh

0.025 kWh

2.5 Ah

2,500 mAh

0.05 kWh

4.17 Ah

4,170 mAh

0.1 kWh

8.33 Ah

8,330 mAh

0.5 kWh

41.67 Ah

41,670 mAh

1 kWh

83.33 Ah

83,330 mAh

2 kWh

166.67 Ah

166,670 mAh

10 kWh

833.33 Ah

833,330 mAh

Jackery Power Stations With Higher Capacities

Jackery is a well-known brand that offers high-quality and top-of-the-line portable solar power stations and solar panels. Jackery Explorer Portable Power Stations have high capacity and can help charge all low-power-consuming and high-power-consuming appliances. Below we have included the most popular Jackery solar power stations.

Jackery Explorer 3000 Pro Portable Power Station

Regarded as the ultimate power solution, Jackery Explorer 3000 Pro Portable Power Station has a large battery capacity of 3024Wh. It can be fully charged using 3-4 solar panels, helping you power 99% of outdoor appliances. The pull rods and double wheels attached to the power station make it easy to carry for outdoor trips.

jackery explorer 3000 pro portable power station

In addition, it features 12 forms of protection, an embedded security chip, and a 30% improved heat dissipation efficiency to enhance the security level of the power station. You can purchase Jackery SolarSaga Solar Panels to charge the powerful solar power station.

Power Station


Recharging Time



Jackery Explorer 3000 Pro


AC Adapter: 2.4H

12V Car Adapter: 35H

6x SolarSaga 100W Solar Panel: 6-8H

4x SolarSaga 100W Solar Panel: 10-12H

2x SolarSaga 100W Solar Panel: 18-20H

1x SolarSaga 100W Solar Panel: 36-38H

4x AC Output: 120V~ 60Hz 20A Max

1x AC Output: 120V~ 60Hz 25A Max

Total AC Output: 3000W Max, 6000W surge peak

2x USB-C Output: 100W Max, 5V⎓3A, 9V⎓3A, 12V⎓3A, 15V⎓3A, 20V⎓5A

2x USB-A Output: Quick Charge 3.0, 18W Max, 5-6V⎓3A,

6-9V⎓2A, 9-12V⎓1.5A

Carport: 12V,10A Max

AC Input: 120V, 60Hz, 15A Max

DC Input: 2x DC 8mm Ports: 11-17.5V (Working Voltage)⎓8A Max, Double to 8A Max; 17.5-60V (Working Voltage)⎓12A, Double to 24A/1400W Max

Refrigerator (15W - 520W) = 5 - 100H

TV (60W) = 35H

Light (5W) = 220H

Heater (1800W) = 2.2H

Microwave (960W) = 2.2H

Electric Grills (850W) = 3H

Coffee Machine (200 - 1800W) = 3H

Jackery Explorer 2000 Pro Portable Power Station

This Jackery model delivers enormous power to charge all small and large appliances during a power outage, off-grid activities, or RV trips. Equipped with a battery capacity of 2160Wh, the Jackery Explorer 2000 Pro can charge AC, full-sized refrigerators, and much more.

jackery explorer 2000 pro portable power station

The ultimate power solution can be fully charged in 5 hours using 6 × Jackery SolarSaga 100W Solar Panels. In addition, you can charge nearly 96% of home appliances using Jackery Explorer 2000 Pro Portable Power Station.

Power Station


Recharging Time



Jackery Explorer 2000 Pro

2160 Wh

AC Adapter: 2H

12V Car Adapter: 24H

6x SolarSaga 100W Solar Panel: 5H

4x SolarSaga 100W Solar Panel: 8H

2x SolarSaga 100W Solar Panel: 15H

AC Output:         120V, 60Hz, 2200W (4400W Peak)

USB-A Output:   Quick Charge 3.0, 18W Max

USB-C Output:   100W Max, (5V, 9V, 12V, 15V, 20V up to 5A)

Car Output:        12V, 10A

AC Input:           120V, 60Hz, 15A Max

DC Input:           11V-17.5V, 8A Max, Double to 8A Max.                   17.5V-60V, 12A, Double to 24A/1400W Max.

Blender (300W) = 5H

Air Conditioner (1150W) = 2H

Mini Cooler (90W) = 15H

Refrigerator (520W) = 3.3H

Projector (100W) = 15H

Blender (300W) = 5H

Coffee Maker (1150W) = 3H

Microwave (1160W) = 96 Min

Electric Grill (1600W) = 1.1H

Jackery Explorer 1500 Pro Portable Power Station

The ultra solar charging solution offers a fast charging experience to users. You can recharge the power station using 6*Jackery SolarSaga 100W Solar Panels in 4 hours. The best part about the Jackery Explorer 1500 Pro is the multiple output ports that can charge 8 different devices simultaneously.

jackery explorer 1500 pro portable power station

Featuring a battery capacity of 1512Wh, Jackery Explorer 1500 Pro Portable Power Station allows you to recharge a wide range of household devices and gadgets. It is a light in weight, portable, and reliable power solution, offering enormous power for 95% of home appliances.

Power Station


Recharging Time



Jackery Explorer 1500 Pro

1512 Wh

AC Adapter: 2H

12V Car Adapter: 16.5H

1x SolarSaga 100W Solar Panel: 18H

2x SolarSaga 100W Solar Panel: 10H

6x SolarSaga 100W Solar Panel: 4H

AC Output: 120V, 60Hz, 1800W (3600W Peak)

USB-A Output: Quick Charge 3.0, 18W Max

USB-C Output: 100W Max, (5V, 9V, 12V, 15V, 20V up to 5A)

Car Port: 12V,10A

AC Input: 120V, 60Hz, 10.83A Max

DC Input: 11V-17.5V, 8A Max, Double to 8A Max

17.5V-60V, 12A, Double to 24A/1400W Max

Ice Shaver (700W) = 1.7H

Hand Drill (400 - 800W) = 3H

Lamp (5W) = 115W

Mini Fridge (90W) = 10.5H

Bluetooth Speaker (10W) = 88H

Microwave Oven (1000W) = 70 Min

Blower (400 - 700W) = 2.3H

Coffee Maker (1120W) = 1.3H

TV (60W) = 17.5H

Wh to mAh FAQs

How many watts per hour is 20000mAh?

To convert 20000 mAh to Wh, you must know the battery voltage. Let us suppose that the lithium battery is 12V.

Wh = mAh × V ÷ 1000 = 20000mAh × 12 ÷ 1000 = 240Wh.

How many watt-hours is a 10000mAh battery?

Similarly to the previous question, let us suppose the battery voltage is 12V.

The watt-hour will be:

Wh = mAh × V ÷ 1000 = 10,000 × 12 ÷ 1000 = 120Wh.

Why Wh is important for power stations?

The best part about the battery is how much power it can store and how long it can run the appliances. The power capacity of most batteries is measured in watt-hours. Understanding the watt-hour will help you choose the best power station or solar generator to keep your gear charged for long hours.

Jackery offers high-quality and large-capacity solar power stations suitable for camping trips, RV trips, power outages, etc. If you want to keep 99% of electrical appliances charged, consider investing in Jackery Explorer 3000 Pro Portable Power Station. It has a battery capacity of 3024Wh, capable of powering all small and large devices for hours.

why wh is important for power stations

Final Thoughts

Watt-hour and milliamp-hour are the two electrical units that determine the capacity of a solar power station battery. Understanding how to convert Wh to mAh or vice versa will help you choose the ideal size solar power station.

Remember, before you choose any solar power station or a solar generator, consider calculating the watts of each appliance you wish to power. This will help you determine which Jackery Solar Generator will fit your power needs.

For instance, if you want to power basic home appliances, Jackery Explorer 1500 Pro Portable Power Station could be the ideal choice. However, if you have higher power requirements, you can consider the ultimate power solution – Jackery Explorer 3000 Pro with a battery capacity of 3024Wh.