I travel a lot, so I came to the conclusion that a power bank made for charging laptops is a good solution when wall-plug is not an option.
The question is how many full charges can I expect to have from a ~30,000mAh power bank. Some people say 1 full charge, some 1 and a half, and I keep wondering how this is possible, since the MacBook Pro's battery is around ~6,000mAh. I would expect it to get at least 3 - 4 based on simple maths and power efficiency.
Any feedback would be highly appreciated.