4,791 mAh Is How Many Wh?

Quick Answer: 4,791 mAh = 17.7267 Wh (at 3.7V)

Milliamp-hours
=
Watt-hours
Auto-fills voltage
Nominal battery voltage
Conversion Result
4,791 mAh = 17.7267 Wh (at 3.7V)

At 3.7V nominal voltage

4,791 mAh = 17.7267 Wh (at 3.7V)

Step-by-step:

  1. Formula: Wh = mAh × V / 1,000
  2. 4,791 × 3.7 / 1,000 = 17.7267 Wh

Similar mAh to Wh Conversions

Values close to 4,791 mAh (at 3.7V Li-ion):

mAh Wh (at 3.7V)
2,291 mAh 8.4767 Wh
2,791 mAh 10.3267 Wh
3,291 mAh 12.1767 Wh
3,791 mAh 14.0267 Wh
4,291 mAh 15.8767 Wh
4,791 mAh 17.7267 Wh
5,291 mAh 19.5767 Wh
5,791 mAh 21.4267 Wh
6,291 mAh 23.2767 Wh
6,791 mAh 25.1267 Wh
7,291 mAh 26.9767 Wh

See Also

Frequently Asked Questions

How many Wh is 4,791 mAh?

4,791 mAh equals 17.7267 Wh at 3.7V (Li-ion nominal voltage). The exact Wh depends on the battery voltage: Wh = mAh × V / 1,000.

How do I convert 4,791 mAh to Wh?

Multiply 4,791 by the battery voltage, then divide by 1,000. At 3.7V: 4,791 × 3.7 / 1,000 = 17.7267 Wh.

Is 4,791 mAh allowed on a plane?

At 3.7V, 4,791 mAh = 17.7267 Wh. Airlines allow lithium batteries up to 100 Wh in carry-on luggage. Batteries between 100–160 Wh require airline approval. Batteries over 160 Wh are prohibited on passenger aircraft.

Formula: Wh = mAh × V / 1,000. Results assume nominal battery voltage.

Conversion factors verified against NIST, BIPM Based on SI definitions (BIPM). Last reviewed: March 2026
Tiago Fernandes Reviewed by Tiago Fernandes