TECHSMARTER 40000mAh 100W Dual USB-C Rugged & Waterproof Laptop Portable Charger, Super Fast Charging Power Bank. Battery Pack for iPhone 16, 15, Galaxy S24, S23, Android, MacBook, Dell, iPad Air/Pro

This portable charger has a cool design and long battery life. I love that it has a clear design so that you can see the internal circuitry. The charger feels well made and seems sturdy enough to be taken and used in the outdoors. The screen is a great feature and it shows information such as battery percentage remaining, the battery voltage (not the voltage it’s outputting to charging a device), the output current and power, the time spent charging/discharging, and the ambient and internal temperature. I wish it showed the estimated charging time remaining instead of just how long something has been charging for, as I don’t find that information as useful. Also I checked this portable charger with a power meter while charging, and I noticed that this device seems to undershoot the correct value by as much as 2 watts, which is less noticeable when charging a larger device, but could be misleading for smaller power outputs.The screen and the built-in flashlight both have a button that seems like you have to press really hard to activate, but really just a simple tap turns it on. The flashlight has a few different brightness modes, and the power consumption when the light is on shows up on the screen which is neat. The charger has a rubber strap to hold onto the charger, and connected to the strap is the waterproof covers that go into the charging ports. The different ports have an assignment C1, C2, A1, and A2 that each have different power ratings, and these are labeled with a sticker when you first open the charger. I ended up taking this sticker off, but now I don’t remember which port is which, so I wish they had them hard labeled on the charger or on the covers.The charging specs seem to be pretty accurate, I was able to get pretty close to 100W out of this charger over USB-C to charge my laptop. I can’t tell if it’s quite 40,000 mah in capacity, but it is certainly big. It also charges pretty fast which is nice, I was able to charge it in just over 2 hours over USB-C at the max charging speed. Overall, while the screen values may not be super accurate, this is a very cool portable charger with a neat look, I highly recommend.

The Techsmarter 40000Mah power bank comes in an unusual form factor (like a small boombox) , measures 78.2x62.6x128mm and weighs in at about 800G. It appears to be waterproof as specified when you keep the power inputs/outputs plugged with the supplied adapter that is attached to the carrying handle.The USBc is specified at 100W in/out and the USBa has a maximum output of 18W ( 12V @1.5A)Testing those specifications, I could only charge the power bank at about 60W as shown on my USB tester and the display on the battery bank. I was able to charge my tablet ( PD complaint) at 30W and my new laptop at about 80 W. Thats the best I have seen using other power banks. !This product does implement all of the current quick charge protocols and should work with newer quick charge products.The display on the product is very functional (a bit small) , and it provides just about all the status you would want to know about: battery level, power, current, battery and PCB temperature, USBa & C working, charge and discharge time, and light status. There are various selectable light modes with a maximum of 500 lumens in the bright mode.This product is very functional, has a very functional status display, good build quality and if you like this form factor with a carrying strap, this would be a great product to have.

I recently got my hands on the TechSmarter Super Power Bank, and I must say, I'm seriously impressed. This thing is a beast! It's not often that you find a portable charger that can have so much capacity in its size and look great while doing it. Here's my take on this tech-savvy companion.Built Tough for the Great Outdoors:First off, this Power Bank is built like a tank. It's shockproof, dustproof, and has an IP67 rating, which means it's pretty much immune to dust, dirt, and can handle being submerged in up to a meter of water. That's perfect for outdoor adventures like camping and hiking. Just remember to seal the USB ports when it's wet. The peace of mind that comes with knowing your power bank can handle rough conditions is priceless.Laptop Charging on the Go:What really sets this power bank apart for me is its versatility. It's not just for smartphones – it can charge laptops and tablets too. With a 100W USB-C PD port, it's compatible with a bunch of laptops, including MacBook.Need for Speed:Charging speed is a big deal, and this power bank doesn't disappoint. The 100W USB-C port charges quite fast.Loads of Power:A whopping 40,000mAh capacity, this power bank has enough juice to keep your devices going for days. For example, I will be soon going for trekking to the Himalayas with my DJI Mini 4 Pro and will be using this to top up my flight batteries. This is a huge convenience fact for me as the size is quite portable.While expensive, this Power Bank is a solid investment for anyone who needs reliable and versatile charging on the go. Especially for my use case, this will get me going for the 3-5 days where I will have no or very little power during the hiking to basecamp.

This is a BIG power bank, it takes several hours to fully charge when depleted (about 4hrs), however consider that it can also charge an iPhone 8X or a large capacity Android phone 6X.The light is super handy as well (press and hold touch sensitive button to turn on)As for others complaining about the size, consider again what this is. It's a battery bank that can charge your devices several times over. NO you're not going to carry it in your pocket but it's a great companion for campers and will keep you going over a weekend without issue.Definitely would buy again, no regrets.

Very well built and great customer serviceWhen charging the battery bank I was Using the UGreen 30-140 wat wall plug / the cord that comes with itThis was with the iPhone 15 pro max letting it charge with out using the iPhone with the battery saver on and using the 80% option on each charge took approximately 45 minutes from 20% - 80%If it was 25% smaller it would be the purfect/perfect size as it’s pretty large but for what it does and how many charges it does it’s actually pretty small and it’s on sale for $150 it’s unbeatable at this momentI’m pretty satisfied with the product overall performance

Looks super cool with the exposed conversion components and futuristic design. The display shows all the essential statistics so one can geek out over the details. But with big power, comes big weight and it could most certainly knock someone out. The big capacity also means that it can't come with me in my carry on, on an airplane. As for charging power, it seems to be able to charge itself at a 100W for short bursts and 67W sustained. Takes a while to charge fully too. It is able to output a full 100W when charging my laptop however for long periods.

Performance is fine but it takes 4 hours to charge full. Takes bigger space for storage. Noticeable in backpack.

Got this product for its large capacity and it’s great charging functionality. It is a great product that can charge multiple devices at the same time very quickly. The screen is a great tool to monitor inputs and outputs. The emergency light is really a fully functional lantern with multiple settings. It is a great product.