kuoh
(kuoh)
4
I have a couple of M4’s and have been happy with them. The LCD display provides a lot more info than most other power banks with just 3 or 4 LEDs. I can leave 4 cells in it for a few months and is still usable. The M3 on the other hand, drained the cells down to 0V. I don’t know if I just got a bad one or if they changed circuitry between the models.
KuoH
KuoH