The OPF technology enables efficient and simultaneous charging and discharging of the POWERBANK. That is particularly convenient if you want to collect sun power with a solar panel and use it at the same time.
Depending on cloudiness, angle of incidence and intensity of the sunlight, the current flow from the solar panel to the connected device will vary. Some mobile devices can not optimally utilize this directly fed solar energy. Our power bank, however, collects the fluctuating solar power efficiently and continuously and stores it. At the same time, a second charging coil feeds the stored power to the connected devices. That way, your devices can be supplied with solar energy securely and continuously.