How long do you have to charge the battery before unplugging?
1241525
Not too long - an hour? I haven't used too much but have always been surprised how quickly it charges. Unrelated but FYI - the buttons on this are terrible but I don't mind it considering the very low price and good quality sound.
1847096
This is "normal" but not necessarily "good." When you plug it in it charges for 10 hours and then shuts off. Period. If you put in fully charged batteries it will still charge them for 10 hours. If you plug it in and then add a battery 8 hours later, that battery will only charge for 2 hours before it shuts off. And as you have experienced, if you add a battery to it after 10 hours it will not do anything because it is already "done" charging, even if you plugged it in when there were no batteries in it at all.
287905
Charge the battery for 9-16hrs, for the first time, before turning on the laptop (even if green light comes on before the 9-16hrs time frame, leave it alone). After that, turn it on and turn off completely. Next, you use the laptop as you normally do. Remember, these batteries have an approx 500-2,000 charge life. This means, if you unplug the laptop at 80% and plug it back in , it just used one of the charges.
721091
Not completely positive, but more than six to eight hours. I find it is not a quick charge at any given time, but your given adequate warning that it needs a charge and can plug it in overnight so it's ready when you do need it.
273756
No idea, fully charged I can use for 5 hrs or so before plugging in, hope that helps
378202
It has to be plugged in in order to charge, and since the battery life is only about 45 minutes, it's easiest just to leave it plugged in all the time
1333418
I usually plug it in overnight. I think it takes a few hours to charge. It depends on how low the battery is when you charge it.
339154
I usually notice between 8-12 hours of continuous use before it drains out but I guess it depends on how long you charge it I keep it charged overnight. Hope this answers you're question.
1623722
never timed it, but usually i charge at about 50-25% available power and seems like it takes several hours--It just leave it in charger in the AM and remove later in afternoon..Sorry not exact..
1282365
I'm not sure, sorry. I generally just plug the charger with a battery into my power strip and when I notice it has turned green unplug it. I've never timed it, but it doesn't seem to take too long. Also, it's hard to say because I have three batteries and after a photoshoot always just swap out the battery for a fresh one and charge the one I've just used, which always has more power still left in it. Sometimes it has 40% left, sometimes more or less, etc., so the time to recharge varies. I seldom run the batteries all the way down, etc. I'll say this... I've been VERY pleased with this charger. I'm not sure, sorry. I generally just plug the charger with a battery into my power strip and when I notice it has turned green unplug it. I've never timed it, but it doesn't seem to take too long. Also, it's hard to say because I have three batteries and after a photoshoot always just swap out the battery for a fresh one and charge the one I've just used, which always has more power still left in it. Sometimes it has 40% left, sometimes more or less, etc., so the time to recharge varies. I seldom run the batteries all the way down, etc. I'll say this... I've been VERY pleased with this... » Read More I'm not sure, sorry. I generally just plug the charger with a battery into my power strip and when I notice it has turned green unplug it. I've never timed it, but it doesn't seem to take too long. Also, it's hard to say because I have three batteries and after a photoshoot always just swap out the battery for a fresh one and charge the one I've just used, which always has more power still left in it. Sometimes it has 40% left, sometimes more or less, etc., so the time to recharge varies. I seldom run the batteries all the way down, etc. I'll say this... I've been VERY pleased with this charger. « Show Less
369568
I usually give it 3-4 hours ahead of when I'm going to be taking photos...it's more of a "play it safe" thing I do. So sorry, I can't give you the exact time it takes. Normally, I plug it in the night before I need it.
1468951
The first time we charged the battery before we used it took 18 hours. After that we just charge it overnight. I think it was recommended to charge it 5-6 hours after using it.
896854
I have left mine plugged in for 2 weeks or so and it still works good. I know it says not to charge over 8 hours, but I have and it has always worked for me. I keep it at my 2nd home and don't remember to unplug it from time to time, but, it does still work. Probably not the best for it but....
1858983
For as long as you leave it plugged in, once unplugged and if left untampered, your looking at around five to nine hours.
187200
Sorry I'm not sure maybe an hour. Since I've had I have not needed to charge it again.
583871
The initial charging time is 24 hours. Let it charge for 24 hours before you use it.
899758
No. The instructions specifically tell you to unplug it immediately after using.