how long do you have to crank to charge it?
381788
According to the manual, "Charge time depends on cranking rate and duration. For example turning the crank at about 2 turns per second for 90 seconds should power the radio for about 10 minutes." The battery pack is 3.6V, 300mAH. It would probably take about 5 minutes of cranking to fully charge it, longer than most people would be willing to do continuously.
1920416
Takes about 5 hours or so to charge. Once it changes will keep for few days at unless you use it.
239167
I have not timed it but it is very short, just a guess but maybe 20 seconds. It is very easy to crank - it is a great system. Ken
737686
At minimum 20 hours. I've never actually timed it but I was pleasantly surprised how infrequently I have to charge it and how quickly it charges
123676
I charged it over night. So I don't know how long it actually took to charge. I do know the charge is good for a few hours of use, though. Sorry i can't be more specific.
2105966
It does take 3 or 4 hrs to charge. Unused it keeps a charge for several days. In use it will fully recharge your phone
1208101
For me it took about 2-3 hours. The first full charge may take a bit longer. Also depends on your charger, and the settings at which you charge your battery.
443251
it takes a long time, im not really sure because i usually charge it with the adapter it came with, but if i had to guess i would say around 16 hours or longer.
1763086
Depends on how fast you crank it but I would say the full load takes 3 to 5 minutes
700603
I usually have to charge mine for about 2 hours give or take for it to get a full charge. It takes a while for me to charge up my phone once I attach it to my phone i have to leave it on there for a bit.
2149433
I have used it twice on a camping trip. I cranked it for 30 seconds. It lasted for a good 30 mins. If u crank it during playing the radio, it will last awhile. Hope this helps
1972296
You can charge it in about 2 or 3 hours. I found a trick that if you make sure it stays cool, it will charge quicker and discharge slower. Not a bad battery.
1497978
The run time on mine (I have had for over a year) is forever!! What ever it is: 75 or 50 min. is long enough that I charge it once every few months!!
1329201
He charge lasts about 20 minutes, less if you crank the power all the way up. We bought extra lithium batteries so that we could charge one while another was being used. To work continuously, you really need about three batteries.
1903811
Approximately 7 minutes. It's a small battery but it also doesn't take too long to recharge.
644212
I've used mine for more than three minutes (after having cranked quite a bit and let it sit for two weeks). I can get four or five before I have to crank it again.It will last much longer and still produce light, BUT it will get dimmer and dimmer as the charge dies. That said, it recharges very quickly.
1976563
6-7 hours or so for me - do yourself a favor and purchase a longer usb cable so you can charge while using when necessary.