Powkey 200watt Portable Power Bank With Ac Outlet, Rechargeable Backup Lithium Battery, 110v Pure Si
powkey 200Watt Portable Power Bank with AC Outlet, Rechargeable Backup Lithium Battery, 110V Pure Sine Wave AC Outlet for Outdoor RV Trip Travel Home Office Emergency
- Make sure this fits by entering your model number.
- We cannot guarantee for any heating products and so as the reclining furnitures, because the instant power may be much higher than the rated power when they are working, it may be far exceeding the 200 watts that our power station can power.
- How to turn on the AC? Click the Power Button, and then press and hold the AC button for 2 seconds, then the AC outputs will be turn on. The self-cooling fan inside the device will work automatically when the internal temperature is too high. If the fan continues to work for a long time and does not stop automatically, you need to stop using the device and wait for the internal temperature to drop to normal room temperature.
Brand : powkey
Category : Cell Phones & Accessories,Accessories,Chargers & Power Adapters,Portable Power Banks
Rating : 4.1
ListPrice : US $189.99
Price : US $149.99
Review Count : 2221
SalesRank : 0
powkey 200Watt Portable Power Bank with AC Outlet, Rechargeable Backup Lithium Battery, 110V Pure Sine Wave AC Outlet for Outdoor RV Trip Travel Home Office Emergency
- Clear winner! Well, of course, I didn\'t compare every product available, but out of the half-dozen or so I chose to test, this one \"shined!\" I was going on a mission trip to Liberia. I was told that access to electricity was scarce and that even when you are hooked up to electrical service, it isn\'t reliable. So true! So, I started a quest for the best backup power source to suit my needs. Mainly, I use a CPAP machine and I didn\'t want to spend another $1,000 for a \"medical\" grade battery for it. Most of these things are designed for outdoor and camping-type use, although, they can be used indoors just fine. This one seemed a bit more \"refined,\" and is designed primarily for indoor use. It would work outdoors, just keep the rain off of it. It is rechargable with almost any solar panels, but I didn\'t need that, so I didn\'t test that feature. It comes with a little 2-amp wall charger that charges it from fully discharged in about 3 hrs. Even though the wall charger does get quite hot, it worked fine. You can also charge it from a car battery or other 12vdc source, and of course solar panels. Since it is humid at my destination, I detached the humidifier from my CPAP and left it at home. That accounts for about 95% (guesstimate) of the power drain. Any heating device is a huge drain on a power source. I also eliminated the two ac-dc conversions which is also a power drain. (The POWKEY provides 115vac output as well as the 12vdc. Everytime you convert energy from ac to dc, or vice versa, energy from your battery source is consumed, i.e. converted to heat and wasted. So, by eliminating use of the power supply on the CPAP and by not using the power inverter on the POWKEY, I knew I would get maximum effeciency.) The CPAP uses 12vdc which is what this POWKEY provides. So, I plugged the CPAP directly into the POWKEY\'s 12vdc output port. I DID have to buy a proprietary cable from the CPAP manufacturer thru Amazon as direct wiring didn\'t work. I think it has to do with noise suppression for the electronics in the CPAP, but that is a guess. With that cable, it worked flawlessly. By not using the ac connections, it saved a lot of battery capacity. Although, the POWKEY does have the ac outlets, and I expect it would have worked fine that way. They advertise a \"perfect sine wave output.\" I don\'t have an oscilloscope to verify that, but when I hooked the POWKEY up to a table lamp with an led bulb, it powered up smoothly and flawlessly to a full, constant light source. When I did this with the other power units I was testing, the light flickered slightly when fully powered up. Not cool. It means that the other power device did NOT supply a perfect sine wave. That\'d give ya headache fast! That was all I needed to see. Likely, the POWKEY DOES indeed provide a near-perfect sine wave. (From my engineering background, it is very difficult to achieve this, but MOST desireable especially for electronics.) After using it on this trip, I am so pleased with it. I never write reviews on products, but I had to put in my 2¢ on this exceptional product. BTW, I could run my CPAP (without humidifier) on direct dc current from the POWKEY for at least four nights before it needed re-charging!!I highly recommend this device.
- Like many reviews mention, the average shelf life of this power bank seems to be anywhere between 8 Months to 1.5 Years of on/off use.I ordered mine in September of 2021 and by October of 2022 it ceased working at 100% power. Trying to plug in at 100% power would result in the power bank turning off. This would go on for several attempts until it would finally stay on. Typically only sporting the same 180W Dell Charger.It was used on/off weekly for travel work and always transported in its carrying case.In December 2022 it ceased keeping itself on or even turning on most of the time. When charging it began lighting up all %100 solid lights, then after unplugging and plugging back in it would flash at various inconsistent percentages and never reach %100. The last time it turned on it was charged, refused to hold on for two days of attempts, then drained within minutes of maintaining power.Worked as needed for the first year, no issues to complain about within that time.
- Writing this review because information is scarce on this regarding certain questions.Overall: Its great!-lasts several hours. I use it all the time for my laptop.-It charges phones quickly, and laptops/ereaders.-takes several hours to charge the powerbank.- can be used (and charged) outside of the US.-Yes it is allowed on planes.SEE BELOW FOR MORE INFO.-I study outside of the house (cafe\'s/libraries) and bring this to sit outside. Between using my own laptop battery and charging it with the powerbank, I stay at the cafe/libraries/parks for 8-10 hours. I usually charge my phone at least once during this time since I use my mobile hotspot for data at times.-Charging it does take some time. I leave it charging when I go to bed so its fully charged. I believe it takes 4-5 hours to fully charge.-It does have a fan that will run while you are charging it. It can startle you when it kicks on-don\'t worry its not going to blow up.-It is a bit heftier due to its size and amount of power stored. But easy to carry in my backpack.-AC has to be on to charge your items: Turn it on, plug in the devices, press AC till its lit. You will see your device is charging then.-Charge it fully after every use.- YES you can bring it on a plane. I contacted TSA and spoke at length with them-it easily meets the requirements. However, you might not be able to bring a smaller powerbank (like the ones just for cellphones) in your carry on-that part depends on the TSA personnel going thru the gates. It DOES meet the requirements for coming onto the plane!(I was able to bring this and a second powerbank-an Anker slim powerbank for cellphones)-YES you can use it in Europe (with c/f type plugs up to 240v).-You only need a universal adapter plug.-You DO NOT need a stepdown converter.I have used this item daily for the past 7 months. No issues, no loss in battery life.At this point, even if it suddenly decided to die, it would be worth what I paid for it. It has been used quite extensively. That said, I hope it lasts for some time to come.
Post a Comment for "Powkey 200watt Portable Power Bank With Ac Outlet, Rechargeable Backup Lithium Battery, 110v Pure Si"