Review on Charger LiitoKala Lii-S6 by Agata Wydra ᠌

Maybe I did not understand something, then tell me how to do it. I put batteries in, I had AA. I plugged the device into the network, the screen turned on, the battery was defined as NiMH. Capacity 1.53v. Charged for a few seconds and showed completion - end. Switching on buttons 1-2, 3-4, 5-6 gave the same result - end. But if you turn off the device, remove the battery from slot 1, turn on the device, then slot 2 starts charging. And so consistently with the rest. Those. only the first connected slot is charged! Those following him are not charged until the first one is pulled out. And so consistently with everyone. And here is my question for the experts: - it's something I'm doing wrong - or is it a buggy device? I hope someone answers.