GRECELL Portable Power Station 460Wh 600W

Original review: Fresh out of the box, it only charges to 92% using the charger it shipped with. No errors on the screen. Tried usb-c charging as well. No fan running and it’s cool to the touch (indoors). No solution in the manual. Can’t figure it out. Other than that, looks and seems like a pretty nice unit that checks all the boxes. I ordered a second one to see if maybe this first unit is just a dud. Will update the review with my findings.Update 1: Fantastic documentation! Can’t say enough great things about the specifications and documentation. Very impressed! Unit 1 definitely has some display issues because the charge level indicator and output indicators are off. For example, it will say 120 watt output and the receiving device will show 140 watt in. Unit 2 seems perfect so far. Love the pass thru charging! I wish it shipped with a 100 watt charger and a 100 watt usb-c cable, but that’s a minor gripe. Very happy!Update 2: After conversing with the seller, we figured out that if I drain it 100% to 0%, then fully charge immediately to 100%, the gauge will reset. Now both units seem to charge and work identically, and I can no longer determine which is which. Paired with a 130w dell DC7455 plug size charger, it charges at ~99w on ac alone, and can be plugged into USB-C charger to charge even quicker if needed. I drain them both daily and am extremely happy. Debating on getting a 3rd. Compared to others, it is a fantastic sweet spot of a deal. DC Input DC7455 ; DC Output DC5521; Recommend getting the 130w dell or greater charger as the 90w dell one tends to over heat and shuts down after an hour because this battery will pull 96w from it. That’s a good thing on both sides. Very happy!Update 3: Many months later…I now own 4 of these, one permanently charging from 100w solar (~70w input according to battery), one as a battery backup for a computer (on a cheap outlet timer to make sure the battery gets a workout daily), and two others floating around. I can’t say enough great things about them. I encouraged my family members to buy them as well, and they use them from camping, remote working and etc. These are simple, well built, hardworking and the price point is perfect. [I wasn’t paid to say this.]

Love this thing! Got it on special and use it not just for astrophotography but also for camping.My astrophotography rig can usually stay powered for 6-9 hours with this. The two plugs on the side are perfect and I’m able to power everything + power my phone or tablet at the same time. Builds quality is great and it feels premium and solid. Not too heavy and actually a relatively good size. I’ve been using it for a few months now and still love it. ALSO IT CHARGES REALLY FAST.

Bought this for an Oxygen Concentrator that blew the fuse on my car cigarette lighted output. A smaller power backup I had did not put out enough watts. This one has worked fine in the car and can be put in a shopping cart. Recharges in 4 hrs. Met my wife's needs and easy to use.

Tested this on a few devices and charged with AC and a solar panel. Runs great.

It's a great little generator for small stuff. I've been testing it on different things. It can't run a coffee pot or hot water kettle. But it can charge your phone, wireless ear buds / airpod and at the time of me typing this review, I have both plugged in to the generator. The generator is at 39% battery life and still have enough to charge both those items for 17 hours! Only takes less than an hour to charge my android phone so I know i won't run out of battery life for it soon. When the generator is at full charge, I have observed it can charge my phone and run a box fan for 4 hours. I haven't tried it with the solar panel yet. Will edit this review when I do. Instructions were simple and there's no noise at all coming from the generator. It's lightweight too.

Only had for a few days, but works as intended. I think anyone buying one of these needs to make sure it fits what they need. For me this is intended for some outdoor fans and string lights on occasion when we have people over.Main number you should understand is the 240 watt hours.

When the subject of power stations comes up, it's important to introduce "what do you need one for?" into the conversation. If it's back-up energy, or to use on a long camping trip, the best advice is "get as much power as you can afford." But not everyone is looking for emergency power, or two weeks in an RV. This Grecell 300W fills the simpler needs, and it does it well. It will handle an appliance up to 300 watts (it's advertised as 600 watts peak) with a continuous run time of 240 watt hours. You're not going to be able to use that with anything that heats (usually), has a motor, a compressor, or other high-energy devices. BUT... it can recharge a lap-top, cell-phone, power an LED TV, and anything else that doesn't use more than 300 watts, including a wi-fi router. I recently received a heated massage device and was surprised it was only 25 watts. The Grecell is great for this, I don't have to be near an outlet or get an extension cord. You may also use it for a short time for electric blankets or heated throws, either 12v or 110 ac. I don't know that I would have paid full price for it, but with the discounted price it is well worth having. The built-in light is cool, too. I'm pleased with this device. If you're considering it, and it's still on sale, don't hesitate. You'll find a use for it. Oh, and anytime you're considering this or any power station, bone up on the math of wattage. That will guide you well!