Duracell Power Source Electric Generator, Solar Capable, Gasless, Quiet, 1440W Output Power Inverter, High Capacity Power Bank

The description is slightly inaccurate in that this is really a very big Uninterruptible Power Supply not a generator that burns a fuel. It has 12V 55 Amp Hour SLA/AGM Deep Cycle Battery. That means it has when fully charged 660 Watt Hours of power capacity. You spend that as you need - all in one hour at 660 Watts or longer at lower power. One great thing is it has provision for adding an external 12V 100 AH SLA/AGM Deep Cycle Battery which it will keep charged during normal usage and roughly triples the total Watt Hours available. I use an Interstate Batteries 12V 110 AH SLA/AGM Deep Cycle Battery (also available from Amazon). This also means you can run it inside and it’s essentially silent except when it’s internal cooling fan cycles on.Note that the external battery connection at the rear uses 1/2” oversized lugs (I used 1” wide x 1/8” thick copper bars 2 inches long to adapt to the more typical 3/8 inches battery cable lugs). Use #2 AWG battery cables and a 200 Amp fuse to protect the wiring in the event of a short. Be very careful hooking the external battery up. A 100 AH 12 Volt battery is not a shock hazard, but it is an energy hazard should it be shorted out with a metal short.The Good:(1) Can be used as a big uninterruptible power supply - Just power it on.(2) Can add an external 12 Volt battery up to 100 AH (actually I used 110 AH).(3) Can add 10 Amp solar array to provide charging for camping or a remote cabin.Could Use Improvement:The output is not a pure sine wave. Everything I have tried it with works normally except my Uninterruptible Power Supply (UPS) for my modem and phone. My existing UPS sees the modified sine wave as a power fail and goes into backup mode using its small battery for power. I had to use a UPS switchover box I built to handle this issue and run the small UPS from raw AC power and switches the UPS’s load to the Duracell Power Bank output when the small UPS runs out of power.Note: The Duracell Power Bank even when “off” supplies AC power at its output from the input and charges the battery. I leave mine “off” except when a heavy storm comes through threatening power outages or if the power has gone out. That may or may not extend the life of the converter circuitry as opposed to leaving the Power Bank “On” all the time. I am a now retired electronic engineer and am familiar with reliability calculations…Recently we had a power outage one night during a particularly heavy storm and the power outage lasted about 5 hours. We were able to watch off air TV, etc. which was great. I also have a gasoline powered generator in the garage, but if unused for years they can be hard to start. Last time I used it, by the time I got it running, etc, the power to our neighborhood had come back on…

This is a great product if you actually do some research to understand what you are purchasing. It has batteries in it. It stores power, it does not create power. Trying to run a 15amp AC is clearly not going to work considering that is 2,250 watts. You would need a 3000 watt gas generator to do that. Research before you buy. This is great for lights, charging phones, even a fridge for a short power outage. It’s not a “gas generator”

I've been trying to contact Battery Biz for some time now with no luck. Left many messages no one returns my calls. I need to have this generator serviced.

I bought one if these units in 2020 as a back-up for my kitchen refrigerator. I have been quite pleased as it has provided immediate turn on service for our frequent brown outs that occur especially summers to save my food.I keep it plugged directly into the wall and attached the fridge n one floor lamp to it. That was what 😳 I assumed you buy a battery for. This method has worked fine for my needs.I don't imagine to charge it up, n then leave in a closet or corner til needed. It is heavy, so if you buy this, it will most likely have to go into a dedicated spot w outlet. When power goes off, it turns on to power your devices for continued use.In fact I'm so pleased w it that I'm buying another one as a dedicated back-up power source for just the television n lap-top w monitors.

I am so disappointed in this purchase but I was so excited when I purchased it . It only lasted 15 minutes after a full charge …. And I only plugged in an 1000 watt speaker to it . I needed this in case of a black out and now Im gonna need to buy a gas powered generator because this has failed miserably. I will never buy this product again and I can’t even return it smh .Do not buy this product you will be disappointed. This was an experience purchase for me and it was an add on to my survival supplies I can’t survive with this generator . I lost completely on this .

I was looking for an indoor generator, and when I saw this one, I will admit I was drawn to the name brand, as I have never been disappointed with a Duracell product. Results were to find a workable budget with this choice AND during the fire season shutoffs in my area I was thrilled with the help it gave to my refrigerator, freezer, as well as phones and Wi-Fi - all managed alternately to stretch the amount of time/use the generator would keep working.Also, the generator recharged swiftly after the initial first 24 hours to get to a full charge. I've got it on a movable dolly to take from room to room if necessary as well. I really like the fact that it is quiet enough to not become obnoxious and loud enough to know it is on and functioning - just right! :)

My place is all electric so when bad weather hits I lose everything. Have used this for so many things already. Will run my vacuum, lamps, fan, laptop, charge multiple devices at once (cell phones, play station controllers ets). Haven't plugged my fridge into it just yet, but that's my next experiment. Did purchase 2 of these. One at full price and one "used - like new" at half price. Takes a day to charge from wall outlet. The only down side is this thing is heavy for me. 65# is what I believe it weighs. But for what it does and what I need, so far so good!