Solar Chargers On Planes: The Dos and Dont''s
So if your lithium-ion battery has a voltage of 3.7 (as most solar chargers do) and an mAh of 30,000 mAh, your calculations would look like this: 30,000 x 3.7 = 111,000. 111,000 / 1,000 = 111. This charger, then, would have a Wh of 111making it too large to bring onto the plane without prior permission. However, most solar chargers come in