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EasyFocus 500W 288WH Backup Portable Generator Solar Power Source 500W Pure Sine Wave Power Inverter UPS 26AH Li-on Battery CPAP Pack Home Camping Emergency Power Supply Charged by Solar/AC Outlet/Car
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- Portable rechargeable power supply and UPS 2 IN 1 ! The best ideal contingency companion either indoor or outdoor. It features: 500W means the inverter function, 288WH is the battery's Capacity,with UPS function, 3 120V AC outlets, 4 USB charging ports up to 6.2A, 4 12V DC power ports up to 10A, Power Source with 4 USB, 4x12V DC and 3x110V AC Outlets,a solar / car input charging port. Intelligent CPU control mode, switch control for each output, LED display for battery power
- You need a long time standby AC/DC power supply for your outdoor activities. With large capacity of 12V 26Ah / 288WH rechargeable lithium battery, it lets you easily reach the AC power, DC power everywhere anytime for your kinds of device. And the LED light can be used as a torch outdoor. You can keep it outdoors in the range of temperature from -10 Celsius to 40 Celsius
- For indoor use as an on line UPS, it provides battery backup and surge protection for desktop computers,workstations,networking devices and home entertainment systems. Safeguards valuable documents, photos, videos, and music files from loss or damage due to power fluctuations and surges as well as uncontrolled equipment shutdown caused by power interruptions
- PURE SINE WAVE: pure sine wave output operates even the most sensitive electronics,it’s better than modified sine wave, with Intelligent CPU control mode, Key switch output, LED display, short circuit and surge protection
- Compact portable lightweight,Pure Sine Wave,small size and high capacity, only 1/10 weight and 1/20 size of the similar product but with 5 times longer lifespan and 10 times capacity. Size:29*11*13.5cm (12.70in x 5.91in x 8.66in),Weight: 3.2 kgs. With hand handle for easy carrying.with 18 months warranty and 100% Customer Service
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EasyFocus 500 Watts Portable Solar Power Generator
Frequently Asked Question ( FAQ):
1.Calculate the Working Time for Your Device:
Charging time=288Wh/Your device power,
For example, Your device power is 60 watt. Then the working time= 288wh/60w=4.8 hrs.(about)
2.Suggested Related Solar Panel:
We suggest you can choose 60-100W solar panel which Optimum Operating Voltage (Vmp) is 18V,because of higher power,charging faster, charging speed is also relating to sun intensity.
3.How to check if the generator is fully charging?
When the LED "%" up to 100%,you also need check if the LED "AC CHARGE" or "Solar Charge" turned to green,then it indicates fully charged.
4.Why the Led “AC CHARGE” will be flashed when using AC outlet?
When turning on the button “AC output ON/OFF” to use AC outlet,the LED "POWER/FAULT"turn to green,and the Led “AC CHARGE” will flash on and off green,this is normal,because our generator has a UPS function, this indicator light flashes to remind that this item hasn’t started UPS function,when you Plug the AC INPUT to the Wall Charger,the “AC charge” led will be not flashed.
5.What appliance this item can supply power?
Please ensure that your AC devices Total power does not exceed 500W,otherwise the generator will automatically switch to DC output for self protection.
Perfect Outdoor Use
Why Need It?
Great for emergencies,camping,weekend trip or wherever you need power anytime anywhere.
It is a compact portable multipurpose power source which combines outdoor rechargeable power supply with the indoor computer on line UPS with a built-in 12V 26AH/288WH lithium battery.
* Capacity:Lithium battery 12v 26Ah 288WH
* Output power: Rated 500W, Peak 1000W
* Output Waveform: Pure Sine Wave
* AC Input Voltage:100V-240V 50/60Hz
* AC Output Voltage:110V 60Hz
* DC Output(4 ports):12V/8A (8A MAX)
* USB Output(4 ports):5V/ 6.2A,can charge any mobile and for IPAD
* UPS conversion time:≤25MS
* LED Light:1W,Max 3W
* Solar Input Charging Panel(Optional):Voltage 18V 60W-100W
* Solar Panel Voltage:12.75V±0.075V
* Overload, Short circuit protection,Fuse:8A
* Operational Environment: Outdoor temperature: around -14°F- 104°F( -10°C- 40°C)
* Size:12.70x5.91x 8.66in
* Weight:3.2 kgs(7 lb)
All-in-One Power Station
Why Choose EasyFocus 500W Portable Solar Power Generator?
The best ideal contingency companion either indoor or outdoor
1. Easy to use and reliable,safety.
2. With hand handle for easy carrying
3. Three Ways of Recharging(AC WALL.Car,Solar)
4. Pure sine wave
5. Additional accessory of MC4 Cord
Multifunctional Safety Protection, protect the generator and device safety:
Short-circuit protection,Over-current protection,Over-power protection
Low-voltage protection,Over-temperature protection
1* 500w Power Generator
1* Wall adapter
1* Car Cigarette Charging cord
1* MC4 Cord
1* DC Cable(5.5*2.1mm)
1* User Manual
PURE SINE WAVE:
pure sine wave output operates even the most sensitive electronics,it’s better than modified sine wave, with Intelligent CPU control mode, Key switch output, LED display, short circuit and surge protection
Please do not use for the following equipment:All medical equipments and equipment that is life-threatening for use. Important business equipment, safety is important!
You need a UPS back-up power at home or office in case of the power fluctuations
When power goes out for even a second it can result in data loss and hardware damage which can shorten equipment life expectancy.This battery backup unit provides sufficient emergency run time power to allow for safe closure of open files and proper shut down of electronics when an outage occurs
Solar panel sold separately.
Including an additional MC4 cord ,which is more convenient to be charged by your Solar panel.
Three Ways of Recharging:
1. Easily be charged by solar panel(Operating Voltage 18V): Using 100 watt solar panel can fully charged it in 15 hours under direct sunlight.(MC4 cord included)
2. By wall outlet(about 6-8 hours fully charged,power adapter included)
3. By car(about 5-6 hour fully charged,car charger included).
Top customer reviews
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This item arrived today. According to the LED readout, it's 100% charged, which is a pleasant surprise. I hope that's correct. The instructions in the tiny manual states, "For the first time using, please use out completely the power first then full re-charge it for the battery." It's not the first user manual I've read that I suspect was first written in another language, then translated by someone for whom English is not his native tongue. Still, it's clear enough.
If you search long and hard on Amazon you'll find at least a half dozen other nearly identical models made by different "manufacturers." Just search for "288 Wh" or "288 watt hours" and you'll find a bunch. The only variation seems to be that some have three "NEMA 5-15" connectors (normal USA three-prong wall outlet/receptacle) and others have two universal connectors that would let you plug in any USA, UK, Euro, etc., AC device. Prices vary. When I bought this one, it was the cheapest of the ones which promised "pure sine wave" AC power. Since I suspect that they are all really made in a single Chinese factory (the user manual says made in China), I also suspect that if any provide "pure sine wave" power, then all do. However, there are some seemingly identical models (but with different brand names) that were cheaper on Amazon which didn't claim (or mention one way or another) to provide pure sine wave power.
If you have to ask what is "pure sine wave" power, you probably don't care. However, if you plan to power very delicate electronics with this, you might. The AC power provided by your local electric power company (in your wall outlets) has a pure sine wave. When you take a DC power source (which all batteries are) and you run it through an "inverter" to convert it in to AC it may also have a pure sine wave or it might be a "modified sine wave." PhDs have written dissertations on this, but suffice to say that some finicky electronics devices balk at being powered by "modified sine wave" AC power. In other words, if you don't have pure sine wave AC power your device *might* not run. I chose to buy this model which promises pure sine wave power rather than risk that the medical equipment that I need to power with it would run reliably on a cheaper unit that *might* have only "modified sine wave" AC power.
Anyway... I will update my review after using it this weekend on a two day campout. If it holds up, I'll add a star. If after several campouts it holds up, I'll add another star.
The percentage display is very unreliable.
I received this on a Wednesday. As stated in original review, the readout showed 100% on delivery (possible, but unlikely). I used it overnight (7.5 hours) with a 110vAC device that (according to the manufacturer) draws 30 watts. The next morning it showed it still had 92% capacity. Either the device manfacturer's 30 watt rating is massively wrong, it the readout at 92% couldn't possibly be correct (way too high). According to the example given in the description of the 7lb 500W 288WH Backup Portable Generator Solar Power Source Power Inverter UPS 26000mah Li-on Battery Power Supply Powerhouse Charged by Solar/AC Outlet/Cars with 3 AC & 4 DC 12V & 4 USB Ports 288Wh (Watt hours) divided by 60 watts = 4.8 hours. Thus 288Wh / 30 watts = 9.6 hours. If I used a 30 watt device for 7.5 hours, it should have used ~78% of the capacity, so the display should have read something like 22% (not 92%). Again, the device I used overnight might have drawn a fraction of what it is rated for, but that's unlikely. I'll have to purchase a "Watt Minder" or similar device (sort of a personal electric meter for just one device) and see, but for the display to be right, my device would have had to have drawn only about 3-4 watts. It just seems nigh impossible that a manufacturer would overstate the electrical load by a factor of ten.
After the first night of use as described above, I plugged an ordinary 110vDC table fan into it and let it run until the readout was close to 0% and an alarm started sounding. I then unplugged the fan, turned off the battery backup unit and plugged it into wall power to re-charge. After about 5 hours it registered 100% and the AC charge light was solid green.
On Friday and Saturday night I used it for about 8 hours each night with the same supposedly 110vAC 30 watt device. I did not recharge after the first night. After the second night, the percentage meter read 62% capacity remaining. If my device really drawing 30 watts, at the portable battery truly has 288Wh capacity (not more), then this should be impossible. 288Wh / 30 Watts = 9.6 hours. For me to use it 16 hours and have it not die seems mathematically impossible.
I'll order a P3 P4400 Kill A Watt Electricity Usage Monitor and the extensively edit this review in accordance with the numbers.
"200 WattHour" in such a small box? Well, it depends on how you count them. Let's put it on the test bench and see what this uber-porta-pack can do. It's a very versatile lunchbox of energy, so this will take some data..
This unit charges from DC, with an included AC-to-DC power supply. That supply is a solid 5 Amps (~65 Watts), which will charge it in a few hours. VERY IMPORTANT! The DC Charge socket will draw just over TEN amps if you let it. If you attach this pack, dead, to a running car at some 13.8v, the box will pull down over 10 Amps (140W) through the cigarette lighter plug. (It has a 15A fast-blow fuse) Make sure your car can handle that -- most can, but you will want your engine running to keep up. The socket will get warm.
The (switched) DC 12V outputs are rated 3A each, and there are 4, 5.5mmx1.2 "barrel" connector.
I hooked up some lab-grade power measurement equipment and ran a small 12v refrigerator from the 12v outputs.
This is a pretty typical use-case, with both periods of no-load and runtime.
The peak load from the fridge was on startup, at 51 Watts (5A), and most of the time was 1A or less.
Overall, I was able to get 116.0 WattHours from freshly-charged EasyFocus 200WH before the voltage sagged to 10 Volts and the fridge cut out. The display on the battery still reads "50.3%", indicating that either the metering is wonky, or we're being encouraged to run the 12v output below 10 volts.
It's worth noting that the "12v" output is probably directly off the Lithium-Ion, not regulated or boosted, so it typically runs in the low 11-volt range when the batteries (3-cell?) are fully charged.
I ran another test using a constant-current load of 3 Amps, with the results in the photo. I drained the pack deeply to 9Volts, or 3 Volts per cell, which is as low as you could safely go. The display still reads 20% Capacity, and the battery provided 168 Watthours from the DC ports this way. (16.1 Amp-Hours at 3A) Here's the thing -- there are not many "12 Volt" devices that will be fine running from an unregulated 9v, so this isn't really *usable* capacity.
If your 12v load really cares about having a steady 12v supply, you might want to add one of the inexpensive DC/DC Buck/Boost converters like this DROK one: DROK 90010 Waterproof DC Buck Converter Voltage Regulator 8-22V to 1-15V 5V 12V 3A Adjustable Output Power Supply Transformer
On the upside, you can use this battery while it is charging, so it does act as an excellent "mini UPS" buffer of sorts. You could wire this up in a car to power a device for some time after the car is off. I do worry that draining it below 10v (to 9.0 volts?) could damage the internal lithium-ion cells, so your 12v load has to have its own low-voltage cut-off.
Moving on, you probably care most about the 120V AC outlets. There are three, good for a combined 300W. The output waveform is excellent, a nice sinewave (rather than pulsed). This means that lightbulbs and chargers will not have an added whine noise or heat. The inverter runs silent as well -- good for camping or CPAP use.
I used a fixed 33 Watt resistive load on the AC, from fully charged to "blinking 17.9%" where the charge level was dropping quickly. Total output: 149 WattHours.
Like most lithium-ion gauges, this one spends a lot of time at "100%" and really gives you insight into the last quarter-charge or so. The EasyFocus pack ran for 4.2 hours, to a DC voltage of 10 volts. That's where I ended the test, because it's not nice to run Lithium Ion much lower. To underscore, at 143Wh, the reading was "26.7%", and 149Wh was "17.9%", so don't try to assign any kind of linear runtime to the displayed meter -- it's very coarse.
There are four USB charge ports, two 1A, and two 2.1A. I measured a single 2.1A power port with a 2.1A fixed-current load. This is similar to what a large phone or tablet would do. It provided just under 5 volts, pretty typical, but you will want to keep the USB cable *short* for fast charging -- some cables will drop too much voltage at this high current. Total output: 34.24 AmpHours, or 158 Watt-Hours before the USB output completely shut off. (It did not sag or brown out, so it was a clean shutdown at 978 minutes. That's a full 16 HOURS of maximum USB 2.1A charging. If you are charging phones, you have enough power to share with friends all weekend.
So what have we learned? I believe the "200WH" is a statement about the internal Lithium-Ion battery rating, and rather optimistic at that. (USB Power packs do the same thing!) It requires discharging the battery quite low, so if you want a long lifespan for this handy box, consider rescuing it somewhere around 10volts, or "50%" displayed to be kind to the battery.
116 WattHours at 12v DC, if you have a true 11-12V DC requirement.
168 WattHours if you are willing to pull it down to 9V
143 WattHours on the AC outlets, running it to shutoff. I'd recommend cutting out after 120 Watthours or so
158 WattHours on the USB ports, run to dead.
If your application is in the 100 WattHour range, you might be very happy with this box, and use it a good long time. If it's for emergency/infrequent use, then a 150 WattHour range is probably what you should expect.
The EasyFocus includes a generous compliment of cables.. 12V car plug, solar MC4 panel adapter, power supply, and DC barrel connectors.
Pros: Compact, huge capacity, fast charging, portable, versatile. You get a lot of options for your money.
Cons: No/Low DC voltage protection for internal battery, unregulated <12v DC output. 150Wh honest useable Wh capacity.
Not only that, it is a great tool for camping. I leave it in my tent and keep all of my kids devices charged and going all night. They sit in the tent and play their devices, which I am sitting around the camp fire enjoying to outdoors. I would like to look into getting solar panels for it, I think that would make it even better. With that said, I have used over night before and have never run it down to 0%, it lasts a long time when fully charged. They only thing I will say is I am not sure I would use it for hiking due to the weight. It is nice and small, but is rather heavy so carrying it around in a back back would be quite a workout.
We had it in the middle of our SUV on a trip to Florida and I never had to worry about my kids electronic devices going dead. Really versatile item, I love it.
Most recent customer reviews
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