My suggestion: It's better not to use it on mobile power, because this battery is really bad!
Supfire comes from a trading company in Shenzhen. It actually claims that it is a manufacturer, but also misleads people by saying that it is from the Hong Kong branch of the Shenhuo company. It's actually just a trash flashlight. The light gradually fades after more than ten seconds. I really can't say that the quality has deteriorated. We purchased several sets of supfire C8, but they failed to charge. one of them exploded in less than an hour. Fortunately, no injuries were caused.
Supfire store said it was due to our malfunction and we used another charger to charge. No explanation was subsequently given. Later I took it to a friend who made batteries for testing, and discovered that the so-called batSupfire's original battery was rated at 2800 mAh, but the actual battery was only 1300 mAh and did not have a safety plate. It's very dangerous. It takes too long to load. It’s truly a lesson that makes you wiser! Supfire, you are so deceptive! I hope everyone will open their eyes
In view of the above, if you really want to use a mobile power bank, it is recommended to use a Sanyo light blue 18650 battery, although. The power rating is only 2600mah, but it's adequate, certainly much better than the supfire you're going to get here, and it's safer.