CBCGT Pure Sine Wave Portable Uninterruptible Power Supply 500W (Peak 1000W) UPS Power Backup with Built-in 26AH Lithium Battery Solar generatorar with Car Jump Starter USB DC AC Device

The first unit arrived with no charge (would not turn on) and seemingly charged to 100% in about a minute. I left it charging overnight, but it could only power a 42w load for a couple seconds before running out of charge. I charged it back up for many hours and tried again with a USB light, which only ran for about 20 minutes before the unit ran out of juice. Other annoyances included a slightly skewed digital display and a rear power socket that would pull out when unpluging.I returned for an exchange.The power only goes out about once a year at my house...it it just happened to go out just a few hours after receiving the replacement power bank. I still cant get over how odd this timing was...fortunately, the replacement worked. It also came with an MC4 connector (not included with the returned unit) and had a better build quality. I strung up the included 12v led bulbs, on of which lost its diffuser in shipping (just a press-fit) and the other had a bad connection that required opening the socket, re-stripping, and reconnecting a wire (no big deal). While the wattage was labeled in Chinese, I compared to other bulbs and estimate the included 12v LEDs to be in the 5-7W range. They are a bluish color temperature, I would have much preferred the natural "warm white" variety. Running these two lights and a 110v lamp made the outtage feel pretty normal as we continued to use/charge our USB devices in a well lit rom.A subsequent charging/depletion test with a 42W load indicates the stated 288WH capacity was pretty close to what I got.The "jump starter" port is always on and appears to be a direct connection to the battery pack - I found myself frequently checking this port with a volt meter and dividing by 3 to get the per-cell voltage during testing...if you research lithium voltage vs capacity, this method of monitoring charge state is more accurate than relying on the built-in display, which remains stuck at 100% for an abnormally long time. It is also good to directly monitor voltage to keep it at levels conducive to a longer cycle life.While sticking my nose right up against the vents, I could detect that Chinese "hot plastic" smell during charging, and while heating water with a 300w immersion heater. Not what I want from my devices, but I paid the $4ish for the 3 year warranty.This power bank appears under different labels from different sellers. At the time of this writing, this version is not only the cheapest, but it comes with the most comprehensive kit. If you order one, be sure to do a thorough inspection and capacity test during the return period (288WH / wattage of test load = approximate expected run time). Due to inverter inefficiency, it is ok if you only get about 80% of your calculated run time (it would have been nice if they stated the inverter's idle draw to better calculate this).

So disappointed 😔 where do I begin? First and most important, the battery does not hold much charge 😞, I tried to plug it in to charge with both dc and ac and the unit smells like it’s burning (burning plastic) the dc plug even melted a bit while charging from my truco cigarette lighter socket, so I didn’t feel safe to leave it plugged in while I was not around, scared to death that it would over heat and burn my truck/ trailer down. Also, it seemed to have “swollen” ?? I’ve seen that b4 in a dashcam that when it got to jot of over charged... it swelled up that was super scary, it’s way heavier that I hoped... have tried it for a few days for our 1 week spring break vacation, returning it as soon as I get home ...

Nice item!It has a nice package. the iron box is solid and portable, but weight only 3.3lbs, small but with a high capacity 26Ah lithium battery, higher output (500w, peak 1000W) I purchased a portable foldable solar panel, and use the M16 connector equipped with CBCGT, then it can be a solar generator, a wonderful design! Fully charged it and power my PC (total about 185w), almost run 2 hours(1 hours 48min), nice power supply!Previously I bought a power supply like it which has a capacity 346wh, but it worked not longer than CBCGT and now it is broken. So, you know how to choose!

I purchased this hoping it would power a CPAP machine all night while camping but it only lasted 4 hours. However I was very glad to have it for other things like using my curling iron and other small appliances while camping. We have not tried that jumper cable part of it.

Skeptical in many aspects.Really 288AH? AC 500W (peak 1000W)?I have 350W plasma TV, this can't turn on this TV while the other brand's very similar looking product turn on my TV.Really pure sine wave? my 400W ceramic heater making noize with this AC power. (just not enough power? then really 500W???)THe other brand's very similar product which turn on my TV did turn on the heater without noise.While AC power is on, when you additionally turn on DC power, battery remaining level going up about 20+%.For example when using AC power only and showing 60%, then turn on DC power additionally will make the remaining level up to 80%.I see batt. remaining level while in DC power is on is showing about 20+% higher than only AC power is ON.(charging is same, when use it all the way down, and charging from there, when DC power on remaining is reaching to about 20%, thenfinally remaining % with only AC power is on start getting above 0%.When charging it by solar and also AC wall cable simultaneously, Solar charge indicator turn togreen (full charge) but still AC wall charge indicator is red (not full yet).. why...While charging by DC, Cigar plug melted.... it happens while leaving it charged while I'm out. lucky no fire.Accessories are very cheaply made.. one of the LED didn't turn on, I opened socket then found wiring was broken.also found that one of LED cover has a melt hole...even I didn't use it at all.I've not used jump start yet but the voltage in the jump start cable connection is about 12V and won't go as high as alternator voltage, like 14V.Cooling fan works while charging as well without any switches ON, it is good.Lastly, there are very similar looking, same specification products available from several different brands/sellers, however, this isthe only one come with storage box.(I think the box has the best quality in all what comes with it)When there's such many cables come with it, what you'll ended up with is needing storage box. that's leaving my 2nd start ON with it.

worked great for awhile but after a few months the unit stopped working and when the inverter starts smoke comes out. Very dangerous!!I am afraid of keeping the unit since it started to smoke and get really hot!!