With 3 AA batteries, does it retain the set message after disconnecting from USB power supply? Or does it need separate battery back up for memory?
315991
Neither actually. If you plug in with the USB, that is the sole power source of the fan. It does not rely on the AAA batteries to operate. This being said, the fan will not function without the batteries because of the design. This means that if you put in batteries when you get the fan, and then plug it in, you will never have to replace the batteries as long as the only time it functions it is plugged in.
315992
It's so poorly built that it doesn't retain the message even if you leave it plugged in - and it's very annoying to set the messages.
315993
It holds the memory when connected to a USB port. With batteries, it seems ok while it's on but when I turned it off, it lost what I had programmed.
315994
It did retain the messages with the batteries. It's a cute novelty, not made extremely sturdy, but a cute little item nevertheless.
315995
It does NOT retain it, I though perhaps that it was an error on my part or perhaps my fan but sadly, no, the message is gone. I tried to set this up on the desk at work but make the message at home...nope.
315996
It dumps the message as soon as the USB is removed. When your computer sleeps it dumps the messages. If you just let it run on the battery it's fine. Until They Completely discharge.
207487
Doesn't have the battery but somehow it keeps memory for short, 30 min power los. I have checked this feature.
909907
it will retain memory when changing batteries. you have to turn off then change. i use recharge batteries and never have memory lost.
1815136
I don't know if it remembers if you remove the disk, but as long as the disk is in it remembers where it was when it shuts off. This works even if the batteries die.
2142211
Yes, it draws 15 MA when connected. It is not necessary to disconnect unless you have a small battery.Best Regards,EH
1719840
Powered with a AC/DC adaptor and it appears it has a battery keeps the memory when the device is unplugged. Photos are transfered with an SD card, not USB.
468960
The unit has a compartment for two button type batteries (supplied with the unit) that back up the memory if the power goes out. So the answer is: yes.
781470
I have changed my battery many times without any data loss. I have two batteries which I sometime have to change in the middle of a recording and only looses the time from satellite disconnect to reconnect.
1973113
It appears to hold the settings fine if power is lost, I have purposely disconnected the power for various reasons and it has always held the settings.
1475143
I believe you just store the second battery for when you need it. What I would try is when the first battery dies switch them around and see if it still works. I was under the impression it would use them as needed so you would not lose power until both batteries were dead but not sure this is the case. I hope this helps.
1732001
The machine will retain the messages even if it is without power for a period of time. We've had it unplugged for days and plugged it back in and the messages are still there.
2101979
You're right, the battery is soldered to the board and not directly replaceable. The battery is rechargeable so it shouldn't need to be replaced really, however, in my testing so far it looks like it's not actually connected to the 3.3V supply. So it will just die after a few days and become useless. It's a surface mount battery so you could probably remove it fairly easily without risking any damage. (Definitely a pin that should have been broken out to the main header for external access, along with PPS)
775884
It has been my experience that it is best to disconnect the battery once it is fully charged. I don't think it will be unsafe, just not good for the batteries.
118901
No, I wish mine retained memory after powering down. Sounds like you got a happy accident, memories are so fleeting.....
2114599
I haven't had it long enough to replace the batteries. Generally, most electronic equipment holds information such as date / time for short periods when bateries are removed. If not, is easily reset through the menu sequence. Sorry unsble to be of more help. Tony
1784846
Mine is connected all of the time to the two 12V batteries that are connected in series. It keeps the batteries desulfated and has even restored a battery that I had given up on..no worries in leaving it connected all of the time!
1773480
The BMS (battery monitor system) is inside the charger, independent for each battery, so it works acceptable.During discharge there is no BMS, so they're relying on the application to handle that. I use these in LEDFlashlights, which the majority have undervoltage shutdown, although it's based on the string of batteries, so if you have two in series and one is fully charged and the other is discharged, you could have problems.If you fully charge the two batteries and put them in the flashlight at the same time, you shouldn't have any problems.