How long does the Jackery hold a charge? i.e. If I charged it on Day 1, on what day would it no longer be able to charge my device?
370850
It depends on what you're charging and how much you need to charge it. I use mine for my cell phone and Kindle Fire. It lasted a few days before I had to recharge it. It would have lasted longer, but I tend to recharge things before they are dead. Hope this helps.
370851
I've tested mine for a few months to check this exact question. After charging my phone fully then recharging the Jackery I put a piece of tape on it with the date of charge. I've found that around a month or so later, it's down to one light. I don't know how long it is until the Jackery is completely drained and no lights appear since I charge it at one light.
370852
IDK! I know that you have to check it to NOT charge (keep pressed the buttom to disable) to maintain the charge. But how many days... I really can't say. it suposed to hold it like 30 days or so. but never tried.
370853
I last used it in October. Tonight when I pressed the button all four lights came on, indicating about full charge. Remarkably good, I would say.
370854
I left mine fully charged in my car for a hot summer week and after the week it had the 4 led lights on and charged my phone very well.
773716
Not really sure. My advice would be to plug it in if its been more than a few days. The device really needs a charge indicator. Two weeks is an exaggeration or wishful thinking.
929625
I've been using it everyday. Only have one full charged since the day I've bought. i have been using it for 2 months. btw, it charges through USB port.
400912
This is the only device I have used so I cannot compare it to others. It stays fully charged for months. I just carry it in my bag and it only seems to really discharge when you are using it. You can attach it to your phone and make a call, or plug it into your phone and it will charge your phone. So basically it will charge your phone fully and then have some juice left. I haven't used it much. Seems to work well! Mine is a Droid Razr Maxx, and my friend used it on her non motorolla phone too, so I think it would also charge an Ipad or Kindle, anything with that same connector. So if you phone holds a charge all day, this will get you another day basically. This is the only device I have used so I cannot compare it to others. It stays fully charged for months. I just carry it in my bag and it only seems to really discharge when you are using it. You can attach it to your phone and make a call, or plug it into your phone and it will charge your phone. So basically it will charge your phone fully and then have some juice left. I haven't used it much. Seems to work well! Mine is a Droid Razr Maxx, and my friend used it on her non motorolla phone too, so I think it would also charge an Ipad or Kindle, anything with that same connector. So if you... » Read More This is the only device I have used so I cannot compare it to others. It stays fully charged for months. I just carry it in my bag and it only seems to really discharge when you are using it. You can attach it to your phone and make a call, or plug it into your phone and it will charge your phone. So basically it will charge your phone fully and then have some juice left. I haven't used it much. Seems to work well! Mine is a Droid Razr Maxx, and my friend used it on her non motorolla phone too, so I think it would also charge an Ipad or Kindle, anything with that same connector. So if you phone holds a charge all day, this will get you another day basically. « Show Less
148739
I am having the same issue. It worked for a few days and now it seems as if it will not charge my phone at all, it shuts itself off? Anyone else find the problem or a fix to this? Thanks.
2166728
I never have run it down, talking. (I talk for over an hour) Off the charger it will stay charged for at least 2 days. As for how long it lasts before needing replacement, I do not know.
1801576
its hold tha charge for a couple of day, and take around 2 or 3 hours for full charge, i used it for 5 charges and after that stop working. I´m very disappointed whit this product
176504
When you start to charge it a small red LED on it starts to blink. When it is fully charged it stops blinking. I haven't had mine long enough to answer your "how many hours" question. If the answer is not in other questions on this page, there is a similar device on Amazon selling for about $11. Somewhere on either that device or this one, someone said how long their's lasted on one charge. The time on the $11 device is probably the same as this one.
1262944
I bought mine almost 1 year ago and it still works great, the charge lasts forever. You must of got a defective one, I would return it for another one.
1240374
I threw mine out because I could never get it to charge again after the first time. The first time, you should charge it for about 12 hours.
1727691
No, I think you might have gotten a bad one. Mine has no problem charging and holding a charge for about 2 hours.
181839
It does not last more than two hours with out needing to be charged. if you do get one get a either a car charger or an extra main charger to carry with you. It can be a night mare trying to keep the phone charged. I hope i have helped you with you answer.
1918624
Hi, I think about 6 hours like the other answers I put it on overnight. I tried to do a test today it was not charged in 5 hours but fully in 8! using an iPhone charger. The easiest way is just to leave it on overnight.
2218800
Im not sure. Try turning it on and letting it charge up. Maybe it needed the day to charge. Both mine work.
695236
I charged it for 24 hours and it never worked...you have to put one end of the USB into charger and one end into plug then plug it in to an outlet....
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
682099
You can go quite awhile once charged...I think at least a month if not more. You did remind me to check mine though since it has been awhile since I charged it! ;)I've never kept it plugged in though...only plugged in overnight to charge it up and it holds a charge for a good duration of time!