If you are visually impaired and are having difficulty navigating this site, please call our Customer Support line via our toll free number 1 (877) 271-2592.
    Pure Outdoor by Monoprice PowerCache 220 Power Generator
    Product # 15278
    In Stock This item should ship today (10/18/2018) if ordered within 11 hours 49 minutes
    In Store Availability

    Volume Pricing (Log In to see Member Pricing)

    Volume Pricing

    Qty: 1 $159.99
    Qty: 2-9 $156.79
    Qty: 10-19 $153.59
    Qty: 20-49 $147.19
    Qty: 50+ $143.99

    To see and take advantage of our member pricing sign up for a business account or contact our sales team.

    Learn more about Monoprice Business


    Battery Type Sealed lead-acid
    Battery Power Level 12 VDC
    Battery Capacity 18Ah (220Wh)
    Outputs 2x 120 VAC, 60Hz, AC outlets (NEMA 5-15) (120-watts total)
    1x 12 VDC, 10A cigarette lighter receptacle
    2x 5.5mm 12 VDC, 3A jacks (6A total)
    2x 5 VDC, 2A USB charging ports
    2x 5 VDC, 1A USB charging ports
    Output AC Waveform Pure sine wave
    Protection Circuits Over current, Short circuit, Under-voltage, Over-voltage
    AC Adapter Input Power 100 ~ 240 VAC, 50/60 Hz, 2A
    AC Adapter Output Power 15.3 VDC, 3A
    Solar Panel Input Power Range 16 ~ 32 VDC
    Maximum Input Current 3A
    Minimum Charging Voltage 6 VDC
    Maximum Charging Voltage 14.4 VDC
    Low Battery Protection Voltage 10.5 VDC
    Battery Recovery Voltage 12.6 VDC
    Standby Current 1A
    Dimensions (LxWxH) 8.9" x 6.3" x 14.2" (227 x 159 x 360 mm)
    Weight 18.1 lbs. (8.2kg)

    Start typing your question and we'll check if it was already asked and answered. Learn More
    Browse 26 questions Browse 26 questions and 41 answers
    Is the battery user replaceable?
    A shopper on Nov 30, 2016
    BEST ANSWER: It is not designed to be. There is no easy way to open the case. Although, it can be forced open, I'm sure, and another 18-20 AH 12V gel Battery put in to replace the dead one in 3-4 years, if you want to.
    What solar panels are compatible with this unit?
    A shopper on May 16, 2017
    BEST ANSWER: They are Compatible with most solar panels with a MC4 connection, You just have to buy a MC4 to 8MM adapter.
    Can't state where to buy them since outside links are not allowed.
    What size solar panel does this need?
    A shopper on Sep 8, 2017
    Has anybody found a specific solar panel (on amazon, until MonoPrice gets its act together) which matches the input requirements of this (8mm, 3A@12VDC)?
    New User U on Oct 26, 2017
    BEST ANSWER: I modified the charger that came with it, cutting off the 8mm end since I was unable to find one anywhere. I then modified the connector on the Coleman solar panel to connect to it and hooked the 40W Panel directly to the Power generator and it charges. I used a two way trailer harness to allow me to connect from the Coleman connector which also uses a 2 way connector and added a two way connector to the Monoprice adapter. Works like a charm.
    I live in the upper midwest and wonder if this can stay in a card during the winter months. So down to zero degrees?
    Jim E on Jan 1, 2017
    BEST ANSWER: Could not really answer question cause Monoprice will not allow outside links. You would be better off with a lithium battery based solution and Monoprice should step up its game and have one. Search Suaoki 220Wh for Amazon link.
    Can this handle my commercial size 36V, 240W solar panel directly, or does it need a controller to drop the voltage to 12V?
    A shopper on Oct 24, 2017
    Is there an online version of the manual?
    A shopper on Nov 15, 2017
    BEST ANSWER: You can find our online manual located at the Product Page at the bottom of the "Description" tab.
    Has anybody found a solar panel which matches the input requirements of this (8mm, 3A@12VDC)?
    A shopper on Oct 26, 2017
    BEST ANSWER: I used a Goal Zero Nomad 28 Plus Solar Panel. They are expensive but it worked perfect without needing any adapters. I got tired of waiting for Monoprice to get their stuff together and offer a solar panel.
    Would this battery pack be able to power a Behringer Xenyx802 mixer? If so for how long would it be able to power this device?
    A shopper on May 16, 2017
    BEST ANSWER: It will indeed power the Xenyx802 audio mixer. The mixer is rated to draw 20 watts at 120 Volts, so the PowerCache would be able to run it for a good long time, on the order of eight to 10 hours.
    HI, What type of DC connector is the AC Adapter Input Power. (so for instance 8mm, 6mm, 5.5mm?) It does not seem to be listed on the Technical specifications. Thanks!
    A shopper on Jan 30, 2017
    BEST ANSWER: It is definitely 8 mm. O.D. I wanted the size to see how to connect a solar panel to my generator.
    How long will this power a desktop computer and it’s monitor?
    A shopper on Jan 28, 2018
    BEST ANSWER: I don't think it has enough watts to power a desk computer. A flat panel monitor uses about 70 Watts + Desktop computer easily more than 200Watts. The power cache can deliver 120Watts Max.

    If you run the monitor alone (70 Watts), the powercache stores 220Wh (Watt hours) given that should only discharge the battery to 50% (120Wh) you could get away with running the monitor for 2 hours-ish (140Wh).
    do you carry the solar panel that adapts to this?
    A shopper on Oct 11, 2017
    BEST ANSWER: I waited months for Monoprice to offer a panel that was compatible. Finally I decided to look elsewhere and I found that a Goal Zero Nomad 28 Plus Solar Panel would work. My experience with it has been positive. The only downside : more expensive than the Solar generator. Hopefully Monoprice will offer something some day. My patience gave up after 6 months
    can it be recharged by a car?
    A shopper on Aug 23, 2017
    BEST ANSWER: Yes but you need to buy a cable. I use the Goal Zero 8mm to 12V Adapter Cable. Monoprice may have one as well.
    Charging Input Ports (x2) + Maximum Input Power (3A) = 6A from Solar Panels ??
    A shopper on Oct 31, 2017
    How loud is this?
    A shopper on Apr 30, 2018
    BEST ANSWER: This is not a real generator. Makes no noise at all since there is no motor in it. All it is, is a large battery with an inverter inside it for the 110 power. The 12v power comes right off the battery and the 5v power for the 4 usb ports come off a transformer that is also connected to the battery. All of them have their own power button which is a very nice feature when you don't need to run the ports you are not using.
    It comes with a charging cord for charging the unit which must be plugged into 110 power to charge it. You can also buy an adapter and plug it into a solar panel for charging as well which is a very nice feature. The only way for this to get its own power and act like a generator is if it is connected to solar panels. Otherwise it really is just a portable battery pack that lasts a good amount of time but will need to be recharged somehow.

    Hope that helps.
    How long does it take the two Monoprice solar panels to recharge this?
    T P on Jul 8, 2018
    BEST ANSWER: Unless I’m missing something,the only solar panels I can find on their site are apparently a model that has USB output for charging small devices. It won’t charge the PowerCache. I use a 28 watt 4 panel charger from another vendor, it has the proper connector and it charges in 4-8 hours in full sun.
    Why is this product called a generator when it is not? It may be a solid power storage, power bank, etc. but calling it a generator is is deceptive.
    A shopper on May 20, 2018
    BEST ANSWER: Agree. The actual name of the product "power cache" is accurate. I suppose Monoprice considers the addition of a solar cell to complete the system as a power generator. Just FYI I recently used the 220W power cache on a cross country road trip - in combination with a 12V power inverter and it worked great.
    Is this battery internally regulated? So solar panels won't overcharge it? Or do I need an external controller?
    Randy W on Mar 22, 2018
    BEST ANSWER: It does have an internal charge controller. AND, a pure done wave inverter. They are great little units, and very affordable. Hope this helped.
    can i use it to power my electric drill and other tools?
    A shopper on Apr 1, 2017
    BEST ANSWER: Yes, but probably not for very long. It is basically a battery. I have had mine for a month and have used it to power my modem and router for my wifi, for an LED light, and for a box fan and the blower for my fireplace. It powers my fireplace blower for 2 hours.
    Besides recharging things, I'm curious what AC and DC things everyone powers with this (i.e. LED light strings, etc.) and how well it works? How long does it last?
    T P on Jul 8, 2018
    BEST ANSWER: I think it works very well! I’m an essential oils independent distributor and did a vendor show from 9-4 I had a box fan plugged in an a diffuser and it performed wonderfully and I still had power after the show. Key is to ensure it charged fully and it will last at least 8 hours
    Necesito generador también solar para equipo de acnea cuál es el más conveniente?
    A shopper on Oct 1, 2017
    BEST ANSWER: From my translation, you are looking to run some equipment using this device. What I found is I could run anything without a heating element, that usually overloaded it. Motors also cut down the run time significantly.
    What is the size of the charging (input) port? Is it a 8mm barrel?
    New User U on Jul 25, 2017
    BEST ANSWER: Specs say 8mm
    Can i power a 20" industrial floor fan with this?
    A shopper on Jul 8, 2017
    BEST ANSWER: You would want to make sure that the fan suports 120V and does not exceed 120W.
    how many amps is the cigarette socket?
    A shopper on Jun 2, 2017
    BEST ANSWER: Thank you for your question. The cigarette lighter socket will be 12 VDC, 10A.

    Should you require additional assistance, please reach out to our technical support team with a detailed question via any of the methods available here:


    Our knowledgeable Technical Support staff would be more than happy to assist. Thank you
    Can i collect power using solar and use power with AC at the same time?
    A shopper on Jun 1, 2017
    I already have a 28 watt portable solar panel with USB outputs. What would be needed to use that panel to charge this unit? Is 28 watts enough to be effective?
    A shopper on Jun 1, 2017
    BEST ANSWER: Specs say 3A maximum input current. If your 28w solar panel is 12vdc [most common] then it puts out 28/12=2.4amps. But if your solar USB output is 5v then 28/5= 5.6 amps... too much
    4.1 / 5.0
    18 Reviews
    5 Stars
    4 Stars
    3 Stars
    2 Stars
    1 Star
    Solar power without solar panel...
    Looks like a nice little power geenrator although 125 watts of pure sine wave AC is not much…. My main gripe is that you would have to purchase a solar panel separately shouldn't at least 1 basic solar panel come with it out of the box? Or call it a solar panel compatible generator for the sake of transparency and honesty.

    CONS: No solar panel included...
    June 28, 2016
    Solid unit. Better than Yeti Goal Zero.
    This thing is heavy and tough. I took it on a 3 day camping trip along with a solar panel I bought elsewhere. I never had to charge it though. Still had 60% charge after charging 3 cell phones for the 3 days as well as a few other devices.

    For anyone interested, it works well with an Instapark Mercury27 solar panel and a Goal Zero 12v charge cable.
    December 5, 2016
    over 2 years ago
    Still could be a nice good big battery, but the name is misleading ... it doesn't have any generator or anything solar-powered about it.

    PROS: Nice big battery with AC inverter

    CONS: Misleadingly named not solar or a generator at all.
    July 15, 2016
    Works well with Goal Zero MC4 to 8mm adapter
    I was able to use a 60watt solar panel along with a goal zero MC4 to 8mm adapter to charge this unit. It takes anywhere to 4-6 hours to charge given enough sunlight.
    April 27, 2017
    Solar Panel Generator
    Looks like it will work well for what I need.
    Not sure why its labelled solar panel generator when it doesnt come with any solar panels.
    Think the description should have been more clear.
    When I called customer support, they dont even carry the panels yet.

    PROS: Nice size. Plenty of charging ports

    CONS: No solar panel avail.
    July 12, 2016
    Super Product
    I bought this over a month ago for emergency power when our electricity goes out. It works great. It powers the blower on my fireplace for several hours on a charge if it's cold out and very effectively powers LED lights and a box fan if it's hot. I also bought an Aleko 25 watt solar panel from Wal-Mart and have used it to charge the generator. Yesterday, we actually lost power for 4 hours and I used the generator to power my modem and router so I had internet. It was a bad, but quick-moving thunderstorm, and after the sky had cleared up I put out the solar panel and so when I got done the generator was all charged up from the sun! I'm actually going to uy a second one.
    April 7, 2017
    1 year ago
    Well-Designed and Useful
    I bought this unit solely for one purpose: to be an emergency supply of power for my laptop in the event of a power outage. I turned on my laptop today at 7am and plugged it into the unit. Once the unit was down to 20% I unplugged the laptop - 11 hours later. That was about 3-5 hours more than I anticipated. It's nice to know I can still put in a full work day even if the power goes out, without having to start up a gas-powered generator. I also like the look of the unit and its practical design.
    March 27, 2017
    1 year ago
    Excellent, convenient and useful item
    This is basically a portable battery backup. But it also has an option for solar charging and there are more plugs (and more conveniently located) than on a traditional UPS. I bought one for myself and for my mother. She is not very technical, but wanted something to keep her electric blanket and small light running during power outages. The USB charging ports also allow her to keep phone charged, etc. The layout and design is easy enough for her to understand and use effectively. I really like this unit as well.
    March 14, 2017
    1 year ago
    Best product ever
    This exceeded expectations. It does it all and is perfectly portable, easy to carry, stands upright so it doesn't take up a lot of room. We don't take it out for extended hours so I can't speak to the battery length, we use it on our boat to power Christmas lights and an amp for playing music for a couple of hours. No problems. No buzzing. amp when plugged into this product. Other generators cause buzzing in the amp. Easy and quick shipping. Good vendor.
    January 8, 2017
    1 year ago
    Ok for basic needs
    This is fine if you need to power a lamp during a power outage or charge a phone in the middle of a field. I thought I would use it to light up our trade show display setup, and it doesn't quite last that long. I used six low-powered, energy efficient LED light bulbs (60w comparable, 9w actual, 750 lumen brightness), and it powered them for just under four hours, slightly shy of the five hours I would need it.

    PROS: Very portable
    Easy to use
    Great options/features

    CONS: Length of power provided not as long as I need it
    No solar panel capability
    November 1, 2016