150W Hand Crank Generator, Portable Power Station w/Folding Handle, Aluminum Alloy Small Inverter Generator Rechargeable for Home Camping Outdoor Smartphone Charger

The quality of the product seems good. I plugged my laptop in and it was able to charge it. I have not used it in a grid down situation yet (obviously) but it seems pretty reliable. For a prepper, I feel this is a must have along with all your other ways to create electricity. This is a great backup.

UPDATE 02.07.25:Internal battery pack (6 - 18650 batteries) will only charge up to 12.4 volts according to the voltmeter display on this crank generator.I took it apart and pulled the batteries apart to read them because I was afraid one of the batteries were bad which could lead to thermal runaway on lithium batteries when charging or heavily discharging.Fully charged, (2) of the 6 batteries read 4.2v; another (2) read 4.09v and the final (2) read 4.04v. Either they aren't charging equally or the batteries are just subpar.The batteries are a generic no name brand rated at 2500 MAh. They are ICR batteries which are the least safe lithium 18650 batteries. ICR is the composition type and is one type of 18650 battery. There's also IMR, INR & IFR. The issue I have with the ICR batteries in this crank generator is that the generator could see high discharge scenarios. ICR batteries aren't that great for high discharge - only high capacity for longer run times. Any of the other types would be better matched.IMR: Known for lower internal resistance, enabling higher discharge rates suitable for high-drain devices.ICR: Offers high capacity but raises safety concerns due to potential overheating during high-drain scenarios.INR: Strikes a balance between capacity and discharge rates, suitable for moderate-drain devices.IFR: Prioritizes safety, stability, and longevity over high capacity or discharge rates.IMR: High-drain devices like vaping mods, power tools, and high-powered flashlights.ICR: Low-drain devices like laptops, digital cameras, or low-power appliances.INR: Moderate-drain devices like laptops, power banks, or moderate-power tools.IFR: Solar power storage systems, electric vehicles, or applications requiring safety and longevity.I have (6) new Samsung 25R INR18650 batteries that I ordered from IMRbatteries.com arriving this weekend - cost is $2.65/battery. They are rated for 20v (originals show rated for 25v) and I will replace the original batteries with these. If anyone else is interested in upgrading the batteries, you will need a pack of 18650 battery strips from Amazon as well as a battery welder. Then the wires will need to be resoldered onto the battery pack. Not for the uninformed DIYer since lithium batteries can be dangerous if mishandled.Reducing my rating to 3 stars because the seller/engineer could have easily paid for better batteries at this crank generator price range. It's not unreasonable.**ORIGINAL REVIEW**PROS:- lightweight- decent alternative power source for small items- AC outlet- decently thought outCONS:- will require extensive cranking to charge built in batteries- certain ports just hot glued in- questionable mAH ratingBOTTOM LINE: Buy a solar generator firstUpon arrival, I immediately charged it with the supplied (and recommended) charging plug. Charging input appears to be a standard 8mm connector.Charges quickly from the wall, but not from the crank. I cranked for 10 minutes straight and there was no incremental voltage increase. However as the crank is turned, it is definitely raising the voltage when the crank is turned. Cranks feel decently smooth, but the vertical stance makes it rather tiresome to hold while cranking for extended periods of time. If this unit is cranked while charging something, there will be increased resistance in the crank. The higher the voltage demands of the connected device, the more it seems to increase the effort to crank it.Highest voltage reading is 12.7 upon turning the unit on, but immediately drops to 12.6. and remains there when it's fully charged. You cannot charge this unit with the supplied wall charger until the voltage drops to 12.4 or below. I almost sent it back thinking it wasn't charging. The supplied charger just stays green until the crank generator voltage drops to 12.4 or below, then it will finally turn red (indicating that the wall charger is charging).This caused me to open up the device to see the problem was (at the time I thought it was broken). I checked everything with a meter and everything was fine.This is where I discovered some shortcuts with this crank generator (hence 4 stars). Firstly, the most glaring issue was that the circuit board that the internal fan is connected to was not secured. Not flopping around, it was just loose. That could've been bad if a hot wire grounded out, especially with lithium and it's ability for thermal runway. I hot glued the circuit board down & made a mental note to not drop this generator (sigh).Upon further inspection, I discovered several of the ports, mainly the charge input & USB input were only hot glued in place. My charge input port is already coming loose from inserting the charging cable - the USB port isn't far behind. For these reasons, this unit doesn't inspire confidence in durability. Like, I feel like I could accidentally drop my Jackery power station and it would be fine. I would wince (alot) if I dropped this crank generator.However, looking around inside this crank generator it seemed well thought out besides the obvious short cuts. I couldn't see what kind of 18650 batteries were inside this crank generator and they aren't easily replaceable without a good amount of soldering. It's like the "manufacturer" purposely hid the battery stamping for the batteries. I would love to see Sanyo stamped on one of them, but not likely.The outer case appears to be an ABS plastic, pretty thick as well. I did see where another reviewer said they broke the charging handle. I can see where one would have to be purposeful while cranking. As careless cranking could indeed possibly break the plastic spin handle. However, looking at the plastic handle (which is foldable), it would be easy to replace with another - preferably a fixed grip.This device does have an AC receptacle that's limited to 150w (per the listing). I did run some laptop chargers off of this and the battery goes down fairly quickly. Sadly, there's no dedicated 12v cigarette lighter adapter.Overall, I actually like this crank generator. As a prepper I have several means of power storage - gas generator, back up solar system with large battery bank, power stations, vehicle jump boxes, USB battery packs, homemade power stations with deep-cycle FLA batteries, many rechargeable AAs & AAAs, etc. This device, though, is pretty neat because it provides a means to have even a little power when there is no sun & no gas.Sure it will take a very long time of cranking (thinking hours) to put power back into this crank generator, but having a back up to your back ups is always a good idea.

I turned the handle three times and it broke off.

This product is definitely not worth the $ 140.00. This only can charge my phone from dead to 100 % only 1 time via USB. The AC does not stay consistent at 120-110 volts. It drops and it not safe for sensitive electronics.As far as cranking this to recharge the batteries, good luck ! You will be doing this forever. Opening this device to see how it’s made, it has the thinest wire gauge ever leading to the AC outlet. Also found cold solder joints all over . This could be dangerous if solder cracks and comes loose.Pass on this !

Good for small things. but the little handle came off and can't put it back on. The co. I suppose would replace it if I call.

It's small. Will charge my phone about 3 times or run a single light bulb for a few hours. The charging cable has a red/green indicator on it but that doesn't work. You have to turn the generator on to see if it is fully charged or not also its impossible to charge this even a little with the hand crank.

Cranked it lightly for a few minutes at a time, 15 min total, just after it arrived and the plastic crank handle broke.

The Hand crank generator works as advertised, but the inverter receptacle is reversed neutral and hot wire side. It is a grounded receptacle so all of the grounded plugs that I own won't work unless I rewire the plugs or rewire the receptacle. It is not an error in the build, because the receptacle is clearly marked as to which hole is the neutral and which is the hot. I like the idea and wish that they would make a more powerful version.