Out of the box, the back up battery does not work
341844
The back up battery does not work, neither the one that came with the clock nor a new one. Also, setting/resetting the time is every time the power flicks is counter intuitive - you need the instructions.
4398525
Doesn't work out of the box. Probably the battery. Though not much, it will cost me to return it.  Would go to this vendor in the future.
4857106
Missing.battery cover. Unit wil not turn on. I habe the smaller version and.tried the cover and battery from it on this one. I have asked for a replacement not a refund.
1365493
I liked the concept after seeing it on YouTube, but the battery was dead upon arrival. After trying to charge the JUMP, the battery appears to not hold/keep charge - been charging for several hours now. The button is either broke, no lights turn on to indicate it's working, or I have received a defective battery out of the box. Charges my phone when plugged in, but that's no different than just a regular phone charger. Returning it ...disappointed.
4022243
I took a chance because of the low price. 1. It looks used with protective films already removed. minor scratch on the screen. I am okay with this if it works. 2. No batery/non-working battery. The last clip will not be saved when power off. 3. Unable to save sttings (dates, time, screen saver, resolution,  etc.). All settings go back to manufacture default each time power the unit off.

Will return for refund.
649054
The battery that arrived does not take or hold a charge. It also makes a rattling sound and has a mark on it that looks like it's been dropped. I tried returning it but Amazon says the item isn't eligible for return :(
3356225
I bought this as an Amazon restock/refurb. It was DOA. Obviously had never been checked. It only needs to have the test button pressed to test it. That obviously had not been done by Amazon . I followed the Instructions to install replacement batteries. That revealed the cause of the problem. The old batteries had leaked and corroded the internal components. Not only was it DOA it was probably un-repairable.
2303780
The battery would not hold a charge for long, so took it to a store for testing and was told they thought it had a weaki cell.  I returned it to the address on the package it came from over two weeks ago, asking for a different battery, but to date, have heard nothing.
Am thinking I may done the return procedure wrong?  please advise if not too late.
748566
Fresh out of the box and it doesn't work. Now I am going to have to take the time to send it back to you.
3517802
battery won't charge right out of the box, won't come on and won't charge. Bout in Oct. bought 6 different colors for grandkids for Christmas all work except this on and they are telling me to late to return when they were Christmas gifts?
3582012
It came with the battery installed and while I was messing with the settings I dropped it.  The setting procedure is really backwards and I had to start over about a dozen times.  That's when I dropped it.  I think it might be the battery.  Once I hunt down another one if it still doesn't work then I will be disappointed.
1983707
I bought this in 2014 and it has never really been "right."
I thought I was the problem being somewhat computer illiterate. The battery has never charged, it has to be plugged in to work. I see online this is not a unique problem to me.
Anyway, lesson learned and too late for a refund.
3355305
I pulled it out of the box today and attached it to my laptop but the laptop never charged. Instead, the laptop eventually died on me. I am contacting the seller for a refund or replacement.
1306917
The fob did not work.  I went and buy a new battery, thinking that the battery was bad.  I am returning it and buying another set of fob from another company.
217177
Initially it had shown a long battery life but then I realised that it was not charging. Tried multiple times with online tips about fixing " Plugged in, not charging " message that appears but none has worked so I have given up on getting this battery to charge.

Seems it was defective on arrival
3124416
i buyed the day april 21, the miniusb port not working, the battery does not charge
2376120
I bought the same laptop last year and has been very good. I just received this one today and plugged in it works fine but the battery was damaged  right out of the box. I received a message when the computer turned on the battery was bad and must be replaced. Will give this a higher rate if they replace the battery with out having to return the whole computer as we ordered this laptop for my daughter for being home schooled and we kind of need it. She is already two days behind.