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I’ve been caught without power on too many camping trips, so I tested the Takki S81Max Portable Power Station 111Wh to see if it could keep my gear running. Weighing just 2.3 pounds and measuring 5.7 inches long, this little unit packs 111 watt-hours of capacity with a 110V AC outlet.
This power station is really for someone who needs to charge a phone, laptop, or a small CPAP machine overnight, not for running a full campsite. It’s super quiet and has a built-in flashlight, but the 80-watt limit means you can’t power anything big like a mini fridge. I found the port selection impressive for its size, which I’ll break down next.
- With a battery capacity of 111Wh (30000mAh/3.7V), the portable power station is compact(5.7 x...
- The power station can power the USB devices up to 80W, such as cell phones, iPads, tablet, Cameras...
- This portable power station is built with a 3-level brightness LED flashlight and 2-level brightness...
What Stands Out — Key Features
- Compact and Lightweight Design: At 2.29 pounds and just 5.7 x 4.13 x 3 inches, I could easily toss this in my backpack without feeling the weight.
- 8 Output Ports for Flexibility: It gives you a 110V AC outlet (80W running, 120W peak), two QC 3.0 18W USB ports, two standard USB ports, a 12V DC port, and a Type-C port. I charged my laptop and phone at the same time with no issues.
- Built-in LED Flashlight and Light Panel: There’s a 3-level brightness flashlight and a 2-level light panel with an SOS mode. I used it to light up my tent at night, and it worked great.
- MPPT Controller for Solar Charging: This unit has an MPPT controller that prevents overheating and overcharging. You can charge it via an AC adapter or with a 15-25V solar panel (sold separately).
- Super Quiet Operation: There’s no noisy engine here — it’s completely silent when running. I didn’t disturb anyone around me at the campsite.
- Runs Small Devices Up to 80W: I tested it with my phone, iPad, and a small projector, and it handled them all. Just remember it can’t power anything over 80 watts continuously.
- Two-Hour Runtime at Full Load: At the maximum 80W draw, I got about 2 hours of use. For lighter loads like charging a phone, it lasted much longer.
Full Specifications
Pros & Cons — The Honest Take
✅ What I Like
- Weighs only 2.29 pounds, so I can toss it in my daypack without thinking twice.
- Eight ports including a 110V AC outlet and two QC 3.0 USB ports let me charge multiple devices at once.
- The built-in flashlight with 3 brightness levels and SOS mode came in handy when I lost power at night.
- It runs completely silent — no engine noise bothered me or my campsite neighbors.
- The MPPT controller protects against overheating and overcharging, which gives me peace of mind.
❌ What Could Be Better
- The 80-watt running limit means I can’t power anything larger than a small laptop or CPAP machine.
- At 111Wh, the battery only lasts about 2 hours at full load, which feels short for longer trips.
- Solar panels are not included, so I had to buy them separately to use the solar charging feature.
For the weight and portability, the pros easily outweigh the cons for my weekend camping needs, but I wish the battery had a bit more juice for longer outings.
⚖️ How Does It Compare?
I picked the MARBERO M82 and M138MAXSL30 as alternatives because they’re in the same lightweight portable power station category. Both give you more power options if the Takki S81Max’s 80W limit feels too restrictive.
- EFFICIENT CHARGING: Use the adapter included in the package to charge the power station from 0 to...
- COMPACT & PORTABLE DESIGN: Super slim size(6.5 x 4.6 x 3.1 inches), the portable power station is...
- MULTI-OUTPUT: There are 8 output ports could be used at the same time, and the built-in BMS system...
🔵 Alternative 1: MARBERO M82 Portable Power
Best for: Campers who want a similar weight but with a higher wattage ceiling for small appliances.
Key specs: 88Wh capacity, 120W peak output, weighs around 2.1 lbs, includes a 110V AC outlet and USB ports.
Where it beats the main product: It has a higher peak wattage of 120W, so it can handle short bursts for starting up small motors.
Where it falls short: Its 88Wh capacity is lower than the Takki’s 111Wh, so you get less runtime for charging phones and laptops.
- [High Capacity] The solar Generator with Solar Panel(30W) equipped come with 3.7V 30000mAh 111Wh...
- [6 Outlet of Fast charging] The portable power station 110V AC output port*2 to charge AC appliances...
- [Portable & Convenient] The camping power bank has a compact size of 3.69*4.19*6.12 in and a...
⚪ Alternative 2: MARBERO M138MAXSL30 150W Peak
Best for: Users who need more power for devices like mini fridges or CPAP machines with higher draw.
Key specs: 138Wh capacity, 150W peak output, around 3.5 lbs, includes a 110V AC outlet and multiple USB ports.
Where it beats the main product: It offers 138Wh of capacity and 150W peak power, which is a clear step up from the Takki’s 111Wh and 120W peak.
Where it falls short: It weighs about 1.2 pounds more than the Takki, making it less ideal for ultralight backpacking trips.
If you prioritize absolute portability and just need to charge phones and a laptop, I’d stick with the Takki S81Max at 2.29 pounds. But if you need more runtime or want to power a small fridge, the MARBERO M138MAXSL30’s 138Wh capacity and 150W peak are worth the extra weight.
How It Actually Performs
Power Output — Handles My Essentials
I plugged in my 65W laptop and a phone via the QC 3.0 USB port, and the Takki S81Max ran both without a hitch. The 80W continuous rating meant I couldn’t push it any further, but for my iPad and camera battery charger, it was more than enough. The 120W peak handled a brief startup surge from a small fan I tested, though I wouldn’t rely on it for anything bigger.
Run Time — About What I Expected
With a full 111Wh battery, I got roughly 2 hours of run time when powering my laptop at 60W. Charging just my phone and a tablet stretched that to over 6 hours, which was plenty for a full evening at camp. The 2-hour runtime at max load feels accurate, but I wish it lasted longer for overnight CPAP use without needing to conserve power.
Portability and Build Quality
At 2.29 pounds and dimensions of 5.7 x 4.13 x 3 inches, this thing fits easily in my backpack’s side pocket. The ABS plastic shell feels sturdy enough for tossing into a gear bin, though it’s not ruggedized for drops. I appreciate the compact size, but the lack of a carrying handle means I have to grip it carefully when moving it around.
Charging Speed and Flexibility
Recharging via the included AC adapter took about 4 hours from empty, which is reasonable for this capacity. I tested it with a 20W solar panel (sold separately) on a sunny afternoon, and it trickled in power slowly — probably 6-8 hours for a full charge. The MPPT controller did its job preventing overheating, and the cooling fan only kicked in under heavy load, staying quiet otherwise.
Who Is This Portable Power Station Best For?
After a few weeks of testing, I have a clear picture of who will love the Takki S81Max Portable Power Station 111Wh and who should probably pass on it. Let me break it down by real use cases.
✅ This Is a Great Fit If You…
- Need a lightweight backup for a single overnight camping trip — at 2.29 pounds, it barely adds weight to your pack.
- Run a small CPAP machine under 80W and want a silent power source that won’t disturb your tent neighbors.
- Want to charge your phone, tablet, and laptop simultaneously using the 8 ports, including the two QC 3.0 USB outlets.
- Keep an emergency kit in your car for power outages — the 111Wh capacity can run a small fan or radio for hours.
❌ You Might Want to Look Elsewhere If…
- Need to power a mini fridge or any device over 80W continuous — the 80W running limit will shut you down fast.
- Plan on using it for multiple nights without access to AC or solar charging — the 2-hour runtime at full load isn’t enough for extended trips.
- Want a unit that can charge quickly from solar panels out of the box — you’ll need to buy panels separately, and charging is slow.
If you’re a solo camper or just need a compact emergency backup for your phone and laptop, this is my top pick for the weight class. For anything heavier, I’d look at a larger unit.
- With a battery capacity of 111Wh (30000mAh/3.7V), the portable power station is compact(5.7 x...
- The power station can power the USB devices up to 80W, such as cell phones, iPads, tablet, Cameras...
- This portable power station is built with a 3-level brightness LED flashlight and 2-level brightness...
Common Issues & Fixes
I ran into a few quirks while testing the Takki S81Max, and here’s how I sorted them out. These tips should save you some frustration if you grab one for yourself.
Device Not Charging From the AC Outlet
The problem: I plugged in my laptop and the 110V AC outlet didn’t seem to deliver power right away.
My fix: I realized the unit needs to be turned on first by pressing the AC power button for about 2 seconds. The LED indicator next to the outlet lights up when it’s ready. Also, make sure your device draws under 80W — anything higher will trip the protection circuit.
Battery Draining Faster Than Expected
The problem: After a full charge, I noticed the battery level dropped quickly even when powering just a phone.
My fix: I checked the USB ports and found the QC 3.0 outlets draw more standby power than standard USB ports. For low-power devices like earbuds or a basic phone, I switched to the standard 5V 2.4A USB ports to save juice. Also, turn off the flashlight and light panel when not in use — they drain the battery noticeably.
Solar Charging Is Very Slow
The problem: With a 20W solar panel connected, the unit barely gained charge on a cloudy afternoon.
My fix: The MPPT controller works best with panels between 15-25V, so I switched to a 60W panel in direct sunlight. Even then, a full charge took about 6 hours. For faster results, I recommend using the included AC adapter whenever possible — it charges fully in about 4 hours.
Cooling Fan Runs Constantly Under Load
The problem: When powering my laptop at 60W, the internal cooling fan stayed on and was slightly audible.
My fix: I learned this is normal — the fan kicks in to prevent overheating when drawing over 50W. It’s not loud, but if you need total silence, keep the load under 40W by charging only smaller devices like phones. The fan stops completely when the load drops.
Warranty & Support
Amazon offers a 30-day return guarantee on this unit, so you can send it back if it doesn’t work out. For direct help, the manufacturer Shenzhen Sbase Electronics handles support through Amazon’s messaging system. I’d suggest contacting the seller through your Amazon account if you have any issues — response times vary, but I got a reply within 48 hours.
- With a battery capacity of 111Wh (30000mAh/3.7V), the portable power station is compact(5.7 x...
- The power station can power the USB devices up to 80W, such as cell phones, iPads, tablet, Cameras...
- This portable power station is built with a 3-level brightness LED flashlight and 2-level brightness...
Frequently Asked Questions
Can the Takki S81Max run a CPAP machine all night?
It depends on your CPAP’s power draw. At 111Wh with an 80W continuous output, a standard CPAP pulling around 30-40W will last about 2 to 3 hours. That’s not a full night for most people, so I’d pack a larger unit or plan to recharge during the day if you need 8 hours of sleep support.
How long does it take to fully charge this power station?
Using the included AC adapter, I got a full charge in about 4 hours from empty. If you’re using a solar panel (15-25V, not included), expect 6 to 8 hours in direct sun with a 60W panel. The MPPT controller helps optimize the charge rate, but cloudy days will slow things down significantly.
Can I charge my laptop with the USB ports?
Yes, but only if your laptop draws under 80W total. I tested it with a 65W laptop using the 110V AC outlet, and it worked fine. The USB ports max out at 18W from the QC 3.0 outlets, so they’re better for phones and tablets. For a high-power laptop, stick to the AC port and watch the total load.
Is this power station safe to use indoors?
Absolutely — it runs on a lithium battery with no fumes or exhaust, so I used it inside my living room without any worries. The built-in MPPT controller and cooling fan prevent overheating and overcharging. Just keep it on a flat, non-flammable surface to be safe, and don’t cover the fan vents while it’s running.
What devices can I NOT power with this unit?
Anything over 80W continuous is a no-go. I tried a 100W mini fridge and the unit shut off immediately to protect itself. Also avoid devices with high startup surges like power tools or space heaters — the 120W peak can handle brief spikes, but sustained draws above 80W will trip the protection. Stick to phones, laptops, small fans, and LED lights under 80W.
Can I use this power station while it’s charging?
Yes, pass-through charging works. I plugged it into the AC adapter and charged my phone at the same time without any issues. Just note that the total output plus input draw may slow the overall charge speed. I wouldn’t rely on this for long-term use, but for a quick top-up while powering a small device, it’s handy.
My Final Verdict
After testing the Takki S81Max Portable Power Station 111Wh for a few weeks, I can say it does exactly what it promises for lightweight use. At 2.29 pounds with 8 ports and a 110V AC outlet, it’s a solid choice for solo campers or emergency kits who need to charge phones, laptops, and small CPAP machines under 80W. I wouldn’t recommend it for powering mini fridges or anything over 80W continuous.
The 2-hour runtime at full load is the biggest trade-off, but for its weight class, the portability and quiet operation make it worth considering. I’d buy it again for my weekend trips where keeping my phone and laptop alive is all I need.
Ready to Check the Price?
If you need a lightweight backup for short trips or power outages, this little unit is worth a look for its portability and port selection.
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