hi, i've been trying to find one that will be on standby and only run when it detects a power outage. this one's description says when pluged it it acts as a normal pump. do you have any that actually will stay in standbye mode while being charged, then turn on using the battery when power is lost? i can't find any like that. but it seems like it would be a common product.
I actually only have ones that operate that way. The brand I purchased was "Cherlam" and I got them on
Amazon, but now that brand no longer exists. It's been replaced by identical products with other brand names. I think they just change over time.
Here are a few ways this could happen:
1. A manufacturer offers their products to multiple distributors, and will put the distributors' names on the product.
2. The IP from the old vendor is sold or licensed to another one.
3. The company went under and new vendors filled the void.
Mine can operate in both ways. If you push the power button once, it stays on. Press it again and it will only turn on when power is disconnected (if this is already the case, it will just run). Press it a third time and the pump turns off.
The only thing I don't love, is that when power is restored, the pump still stays on. You have to manually cycle through the power button functions to get it to turn off.