Has anyone had a problem with the unit not working even after charging for 24 hours?
177575
Yes, mine would not charge at all. The light just kept blinking. Tried two outlets for 24 hours. Tried to fill out a form on website which was ridiculous (twice). There was no phone # to contact them. When I contacted Amazon, they were awesome! They credited the purchase on my credit card and I returned the worthless flosser.
1972370
I had the same problem. I also tried to charge for over 24 hours. Not recommended at all.
253604
Try different chargers. If it is all the way exhausted, plug it in and wait 20 minutes or so. Sometimes it doesn't respond for a while, until it has a little bit of charge. Good luck.
247753
mine wouldn't charge when I got it sent back...maybe that's what happened to it was overcharged before I got it??
1164907
Did you make sure everything was plugged in well. Sometimes putting the cord onto the power source is a little hard and if it was on all the way then I would say something is wrong because within the 24 hours mine was fully charged.
1935453
Never had a problem. Haven't charged mine in four months still has charge. I would try another charger power source to eliminate the charger from consideration.
1884206
Well I let it charger like 2 hours .unless that your charger is broke. Try to power it on to see if it work.
470577
It works for me so once the unit is charging and your devices are charging from the unit, try pressing the little button on the side. If that doesn't work, then you may have a defective unit.
1383212
Mine was working great after few hours charging. After a year and half, it did not charge like yours. I used to buy used one and used every week, so I gues it died. I used for long and good. But if it is new, then you need refund it
301226
I have had several issues with charging to date (1 year now). Most common is to start decreasing the battery level while plugged instead of increasing. In this case I wait until the battery goes to zero and then start charging. Another problem is that sometimes it just doesn't charge. In this case I press the charger more strongly and it works. In other words, I have been able to live with them, but these problems really upset me. I have also updated the firmware but then the battery started to decrease really fast while in use and I restored the original factory setup.
1958672
Hi, I am having the same problem with mine. I am sure these are defective items that are being resold. I have to shut it down, power cord in, turn it back on and then manipulate the cord just so. Sometimes it takes a few tries. When if starts to charge, I leave if alone, because it will stop even if lightly tapped. The charge doesn't last very long though. Very disappointed. I should have returned it when I got it.
1811436
I haven't had any problems with mine and I have charged it many times. I would contact the company. They have wonderful customer service. I had to call them on a question that I had and they were wonderful.
1110462
I'm sorry to hear that. Mine seems to be working fine. I've used mine for more than 6 minutes. Make sure it is fully charged before using it.
945033
Suire you checked that the charger wasn't the problem. I would contact Sena and see about returning the bad unit.
783151
I just had an issue with mine not charging. It got to zero and when I rebooted with it plug into the USB charger, I could see the little lighting bolt on the battery indicating it was trying to charge, but it shut off because of low batter. Kind of a Catch-22. I tried this cycle a few times and was fed up, so I decided to unplug it and let it 'die down' for half a day. Then I plugged it back in and the screen showed me that it was charging! I let it charge up for a few hours and it started up and continued to charge. If you are having charging issues, try letting it run out and "die", then plug it in. Worked for me, YMMV. I just had an issue with mine not charging. It got to zero and when I rebooted with it plug into the USB charger, I could see the little lighting bolt on the battery indicating it was trying to charge, but it shut off because of low batter. Kind of a Catch-22. I tried this cycle a few times and was fed up, so I decided to unplug it and let it 'die down' for half a day. Then I plugged it back in and the screen showed me that it was charging! I let it charge up for a few hours and it started up and continued to charge. If you are having charging issues, try letting it run out and... » Read More I just had an issue with mine not charging. It got to zero and when I rebooted with it plug into the USB charger, I could see the little lighting bolt on the battery indicating it was trying to charge, but it shut off because of low batter. Kind of a Catch-22. I tried this cycle a few times and was fed up, so I decided to unplug it and let it 'die down' for half a day. Then I plugged it back in and the screen showed me that it was charging! I let it charge up for a few hours and it started up and continued to charge. If you are having charging issues, try letting it run out and "die", then plug it in. Worked for me, YMMV. « Show Less
301225
Not from my standpoint. I have had repeated issues with it. I bought a new charger and it worked fine for about two months and now it is again un-charging rather than charging. It is a poor design
992882
Make sure you are charging from the right port. If that's correct. .make sure it's charged for 24 hrs. ..If not successful. .its faulty. ..assuming that your charging a device has a good battery and the voltage is correct