Once this unit is fully charged how my hours would it last before it needs recharging, 1) Thinkpad, 1) Ipad and my cell phone is used on a my Escalade
1492097
This unit cannot be charged. It is charge/discharge controller and switch. You buy external battery of required capacity, and connect to this device. The deep cycle marine battery 100AH will run these for tens of hours.
1492098
It depends on what battery the inverter is connected to. In my case, it connects to an AGM marine battery, see below link. I use the combo to power an air pump which draws ~1.3 amps of current. In two tries, the air pump lasted on average of ~7 hrs before the battery ran out of juice. You need to find out what current your device draws.Exide 34MSORB Orbital Sealed Maintenance-Free AGM Marine/RV Battery
1492099
This unit needs to be connected to a battery and it will charge the battery. The amount of time will depend on the amp hours of the battery, how long you use you devices and how much power/amps they consume.
1492100
Your question makes it look like you think the inverter is charged. It is not a battery and does not store energy. It connects to a battery. If you are asking how long your car battery would last using the inverter to power the devices you list it would depend on your battery. Each battery has its own specs.
1492101
I am sorry to say I can't answer that question definitively for you. The unit does not come with batteries integral to it, so the operation lifespan is dependent upon what you connect. My suggestion is to add together the wattages of each of your devices, and then see if the manufacturer has a chart with the information you can glean from. I used the unit for sump pumps at a customer location, and I believe the power output is quite high and more than what you need, but the battery reserve is dependent upon what you connect.
1492102
The device is not a battery. It converts 12 volt DC to AC current. It connects to a deep cycle battery provides a limited amount of backup power.
1492103
This unit is not "charged" this unit as I used it charged a bank of marine batteries which powered the converter in the event of a power outage. I do not recommend this unit because of the smell it makes.
1492104
it depends on the draw on the inverter. i ipad and cell phone have very little draw.there are smaller inverters that will do the job. this one is used on ambulances to keep batteries up & run equiptment .
1313757
That's nor bad. think you will find that it will run longer and longer after use and re-charging. Did you fully discharge it before re-charging the first time? No worry if you didn't, but it may take several recharges to get it up to full running time. Mine now runs about an hour before running out.
323058
Battery life depends on a number of factors. It depends on the applications that you use, the device settings, & the enviormental factors like temperature.It has about the same battery life as my 2 year old iPad. I charge my unit any time that I can, and use it while it is charging.
1525964
You need to hold the button for a few secs, you should see a green light on it while it's charging. Hold until you see.the green light. It should be fully charged well before 7 hours.
840583
Its a good 3.5 to 4 hrs but leave mine charging with AC power most of time. I would recommend upgrading the memory to max amount for performance.
2249187
My usage pattern is similar, and I have had no battery life issues. I've had it a month and am still on the original set of batteries, and I will look into rechargeables after that as is my custom. I would strongly suspect that you have a defective unit. Personally, my big complaint is the lack of accessories; especially since it lacks a lanyard, some form of belt holster would be nice, and a rubber grip would be a very sensible addition.
395555
I have used it for 6 hours, and it still had a charge. Don't know average, I charge it after use.
1885711
Mine ramains charged until I use it. That's when I recharged. Ican charge my Raxr Maxx and ipad 2xs before re charging. I f left charged it doesn't discharge by itself.
1525965
If you just got it, you may need to charge it longer than that for the first initial charge. I let mine charge for about 12 hours or more. Not the goal, I just didn't need it right then and I forgot about it. It worked fine when I used it about 3 weeks later after being in my purse all that time. And it fully charged my cell that was at 10%. Be sure to recharge it after use though. The light indicator should work also......And like the others replied, be sure to hold the button once you connect it to what you are charging.
1419164
A full battery will last you about 3 hours and you can get a external and car charger.
2228043
I found the portable battery system (container, no batteries) that came with the unit lacking. Four alkaline batteries would last about 30 minutes, NiMH rechargeable batteries probably about 15-20 minutes. I has a male usb plug however and I use that to plug into a 5v lithium ion battery pack and that works really well. The length of time depends on the battery pack. A 5000 mAh battery pack will last about an hour. I bypass the control cable and just plug and unplug to control the heat level. I love the pad but not the portable battery system that come with the unit.
2240070
You should be fine after 3 hours. It comes with battery life. Or if you are worried charge it overnight.
1710350
You can use an external battery such as the type to charge and ipad (has to be 2 amp). I ran mine 10 hours on a 5600Mah. A 10000Mah should last all day for sure. Of course recharging them takes a while so this option would probably be best for occasional use.
2264644
5 hours sounds about right when the battery has been fully drained. Usually I just plug it in before I go to sleep at night and when I wake up it is fully charged.
836161
Hey man. Well I use my phone allot. Standard battery was at 15 % or less by the end of the day (unplugging the phone from charging cable at 5:30 am getting home from work at 9 pm) the new battery leaves me with 49% in the same time span. So I would say it gives me an extra 5 hours about. Depending on what you have running ( gps, wifi, 4G, blue tooth, auto rotation and the other sensors. ) if you use your phone allot in a day I would recommend buying one. It really does help. Charging time with Samsung 2 amp charger is about 15 min longer than standard battery. Hope this helps make your decision. Grtz Hey man. Well I use my phone allot. Standard battery was at 15 % or less by the end of the day (unplugging the phone from charging cable at 5:30 am getting home from work at 9 pm) the new battery leaves me with 49% in the same time span. So I would say it gives me an extra 5 hours about. Depending on what you have running ( gps, wifi, 4G, blue tooth, auto rotation and the other sensors. ) if you use your phone allot in a day I would recommend buying one. It really does help. Charging time with Samsung 2 amp charger is about 15 min longer than standard battery. Hope this helps make your... » Read More Hey man. Well I use my phone allot. Standard battery was at 15 % or less by the end of the day (unplugging the phone from charging cable at 5:30 am getting home from work at 9 pm) the new battery leaves me with 49% in the same time span. So I would say it gives me an extra 5 hours about. Depending on what you have running ( gps, wifi, 4G, blue tooth, auto rotation and the other sensors. ) if you use your phone allot in a day I would recommend buying one. It really does help. Charging time with Samsung 2 amp charger is about 15 min longer than standard battery. Hope this helps make your decision. Grtz « Show Less
669485
Not sure where I originally got this info, but for years I've sworn by a complete first charge followed by a complete discharge, followed by another complete second charge (and keeping the machine turned off during at least the first exercise). All future use minimizing actual battery usage, so basically keep it plugged in whenever possible or at least charging every night. My 3 yr old LG cell phone still gets 3-4 days/charge (vs 5-6 days brand new) and 4 yr old laptop gets 2 hrs (vs 4 hrs brand new)... Hope this helps.
1887920
Can not really answer you on that ine. I would probably either try another charging unit to see if that was the problem or else send it back, I did find that the batter life is not what I had hoped it would be as it seemed to last about 3 hours but not much longer. That was/is my one disappointment with the unit...Barbara