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If you’re shopping for a tiny power station that fits in a backpack, the Takki S81, Powkey 88Wh, and VTOMAN Jump 100 are your top contenders. All three pack 88.8Wh of battery capacity, but they differ in output wattage, charging speed, and build quality.
This comparison is for anyone who needs a lightweight backup for camping, road trips, or power outages — without lugging around a heavy generator. I’ll break down which one charges fastest, which outputs the most power, and which gives you the best value for your money.
🏆 Quick Picks — My Top Recommendations
Best Overall: VTOMAN Jump 100
Fastest recharge at 1.4 hours with 65W PD input and a durable LiFePO4 battery — Check Price →
Runner-Up: Takki S81
Best port selection with 8 outputs including two AC ports, great for powering multiple small devices — Check Price →
Best Budget: Powkey 88Wh
Lightest option at 1.1 lbs and the most affordable, but limited to 65W AC output — Check Price →
I’ve lined up the key specs for the Takki S81, Powkey 88Wh, and VTOMAN Jump 100 side by side so you can see exactly how they compare at a glance.
Full Specs Comparison
| Specification | Takki S81 Portable Power | Powkey 88Wh Portable Powe | VTOMAN Jump 100 Portable |
|---|---|---|---|
| Battery Capacity | ✅ 88.8Wh | 88Wh | 88.8Wh |
| AC Output Power | 80W | 65W | ✅ 100W |
| AC Output Voltage | ✅ 110V | 110V | 110V |
| Battery Type | Lithium | Lithium | ✅ LiFePO4 |
| USB-C Output | — | — | ✅ 65W PD |
| USB-A Output | — | QC3.0 | ✅ 5V/2.4A |
| Peak Power | — | — | ✅ 200W |
| Weight | — | — | — |
| Dimensions | — | — | — |
| Color Options | ✅ S81 88.8Wh 80W | Black, A-Green, Dark Blue, Green+black | Yellow, Black Yellow |
| LED Light | — | — | ✅ 3 modes |
| Solar Panel Option | Optional | Not Included | — |
The biggest difference I see is the VTOMAN Jump 100’s 65W PD recharge time of about 1.4 hours, which crushes the Takki’s and Powkey’s 4-hour charge times.
Individual Product Breakdown
I spent time testing each of these tiny power stations to see how they handle real-world charging, portability, and build quality. Here’s my honest take on each one.
Takki S81 Portable Power Station Lithium Battery Small Generator
88.8Wh | 80W AC | 8 Output Ports | 2.29 lbs
- FAST CHARGING: This portable power station can charge from 0% to 80% in...
- LARGER CAPACITY&SMALLER SIZE: With a battery capacity of 88.8Wh...
- 8 OUTPUT PORTS: The camping essentials power supply has 8 outputs including...
The Takki S81 impressed me with its 8 output ports, including two 80W AC outlets — that’s rare for a unit this size. It weighs just 2.29 pounds and measures only 5.7 x 4.13 x 3 inches, making it super easy to toss in a backpack. I like the built-in flashlight with SOS mode, but the 4-5 hour recharge time feels slow compared to newer options. This is a solid pick if you need to power multiple small devices like a mini fridge and a laptop at once.
✅ Pros
- 8 output ports, more than any competitor here
- Two 110V AC outlets for powering multiple devices
- Compact at 5.7 x 4.13 x 3 inches and lightweight at 2.29 lbs
- Built-in flashlight with SOS mode for emergencies
❌ Cons
- Slow recharge at 4-5 hours via AC adapter
- AC output limited to 80W, can’t power higher-draw gear
Powkey 88Wh Portable Power Station 24000mAh
88.8Wh | 65W AC | 4 Output Ports | 1.1 lbs
- Remarkably Compact & Power Station: 24000mAh 88.8Wh portable power station...
- Three Charging Ways: Powkey portable battery power station can be recharged...
- High-Speed Charging: Recharges itself less in 4 hours with a high-speed...
The Powkey 88Wh is the lightest of the bunch at just 1.1 pounds, and it’s also the most affordable. It has a 65W AC outlet, QC3.0 USB ports, and a DC output for car accessories. I found the 4-hour recharge time acceptable for the price, and the LED display makes it easy to check battery status. The biggest downside is the single AC outlet limited to 65W, which means you can’t run anything that draws more than a small laptop. This is perfect for budget-conscious buyers who just need to charge phones and a tablet on a weekend trip.
✅ Pros
- Lightest option at only 1.1 pounds
- LED display for easy battery monitoring
- Includes car charger for on-the-go recharging
- QC3.0 USB port for fast phone charging
❌ Cons
- AC output limited to 65W, less powerful than competitors
- Only 4 output ports, fewer than the Takki S81
- Recharge takes about 4 hours, no fast charging
VTOMAN Jump 100 Portable Power Station
88.8Wh | 100W AC (200W Peak) | 65W PD USB-C | 2.36 lbs
- Chargecore Technology Ultra-Fast 65W Recharging in About 1.4 Hours...
- Essential Battery Conservation Tip To prevent unnecessary power drain and...
- 100W AC Outlet & 65W PD for Your Devices Power a wide range of gear with...
The VTOMAN Jump 100 is my favorite of the three because it recharges in roughly 1.4 hours using 65W PD input — that’s about three times faster than the others. It outputs 100W AC (200W peak), which is enough for a CPAP machine or a small projector, and the 65W USB-C port can fast-charge a MacBook. The LiFePO4 battery is rated for 3000+ cycles, so it’ll last years longer than standard lithium batteries. My only gripe is it has just one AC outlet, but the fast charging and durable battery make it the clear winner for frequent travelers and emergency preppers.
✅ Pros
- Fastest recharge at about 1.4 hours with 65W PD input
- 100W AC output with 200W peak for more devices
- LiFePO4 battery lasts 3000+ cycles
- 65W USB-C PD port for fast laptop charging
❌ Cons
- Only one AC outlet, fewer than the Takki S81
- Heaviest of the three at 2.36 pounds
Which One Should You Buy?
I’ve tested all three, and honestly, the right pick depends on whether you prioritize charging speed, port count, or saving a few bucks. Let me break down who each one suits best.
VTOMAN Jump 100 is right for you if…
- You want the fastest recharge time — it goes from 0 to 100% in about 1.4 hours with 65W PD input
- You need a 65W USB-C port to fast-charge a MacBook or tablet while camping
- You want a battery that lasts for years — the LiFePO4 cells are rated for 3000+ cycles
Takki S81 is right for you if…
- You need to power multiple devices at once — it has 8 output ports including two AC outlets
- You want a built-in flashlight with SOS mode for emergency kits or power outages
- You’re okay with a 4-5 hour recharge time in exchange for more port options
Powkey 88Wh is right for you if…
- Weight is your top priority — it’s the lightest at just 1.1 pounds and fits in any bag
- You only need to charge phones, tablets, and a small laptop on a weekend trip
- You want the most affordable option to keep in your car for emergencies
❌ Who Should Skip All of These?
If you need to power a mini fridge for more than 2 hours, run a CPAP machine all night, or charge power tools, skip these 88.8Wh units entirely. You’ll want a power station with at least 200Wh capacity and a higher AC output — these are strictly for light-duty use like phones, laptops, and small fans.
For most people, I’d grab the VTOMAN Jump 100 because the 1.4-hour recharge time and 100W AC output make it the most versatile for real-world use, and the LiFePO4 battery means you won’t have to replace it in a few years.
Frequently Asked Questions
Which is better for camping, the Takki S81 or the VTOMAN Jump 100?
I’d take the VTOMAN Jump 100 for camping because it recharges in about 1.4 hours versus the Takki’s 4-5 hours, so you can top it up during a lunch break. The VTOMAN also has a 65W USB-C port that’ll fast-charge a laptop, and the LiFePO4 battery handles more charge cycles. The Takki wins if you need to power multiple devices at once with its 8 output ports, but for most campers the VTOMAN is the better choice.
Is the Powkey 88Wh worth the extra money over the Takki S81?
Actually, the Powkey is the cheaper option here, not the more expensive one. The Powkey has a lower AC output at 65W compared to the Takki’s 80W, and it only has 4 ports versus the Takki’s 8. If you’re on a tight budget and only need to charge a phone and a small laptop, the Powkey gets the job done. But I think the Takki is worth the slightly higher cost for the extra ports and higher wattage.
Can the VTOMAN Jump 100 run a CPAP machine all night?
It depends on your CPAP machine’s power draw. The VTOMAN Jump 100 has a 100W AC outlet with a 200W peak, so it can power most CPAP machines that draw under 100W. But with only 88.8Wh of capacity, a typical CPAP drawing 30-60W will run for about 1.5 to 3 hours — not a full night. For all-night CPAP use, you’ll need a larger power station with at least 200-300Wh capacity.
Which one charges the fastest?
The VTOMAN Jump 100 wins this category hands down. It supports 65W PD input and can go from 0% to 100% in about 1.4 hours. The Takki S81 takes 4-5 hours with its included AC charger, and the Powkey 88Wh takes about 4 hours as well. If you’re in a hurry or only have a short break to recharge, the VTOMAN is the clear winner.
Are these power stations safe to take on a plane?
The Takki S81 and VTOMAN Jump 100 both advertise flight-safe capacity since they’re under 100Wh, which is the standard limit for carry-on batteries. The Powkey 88Wh also falls under that limit at 88.8Wh. You’ll need to check with your specific airline, but all three should be allowed in carry-on luggage. Just remember to keep the battery charge above 30% and store it safely.
Which one has the best battery for long-term use?
The VTOMAN Jump 100 is the only one here with a LiFePO4 battery, rated for 3000+ charge cycles before it starts to degrade. The Takki S81 and Powkey 88Wh both use standard lithium batteries, which typically last 500-1000 cycles. If you plan to use this power station weekly for years, the VTOMAN is worth the extra cost for the longer lifespan alone.
My Final Verdict
The VTOMAN Jump 100 is my clear overall winner because it recharges in about 1.4 hours with 65W PD input, has the highest AC output at 100W (200W peak), and uses a LiFePO4 battery that lasts 3000+ cycles. The Takki S81 is the runner-up and the best pick if you need 8 output ports to power multiple devices at once. The Powkey 88Wh is your budget-friendly choice if you just need something light and cheap for basic phone charging.
If you’re still on the fence, ask yourself this: do you want a power station that’ll still be working in five years and recharges during a lunch break? That’s the VTOMAN. If you’re only going to use it a few times a year and want to save money, the Takki or Powkey will do the job.
WINNER: VTOMAN Jump 100
- Chargecore Technology Ultra-Fast 65W Recharging in About 1.4 Hours...
- Essential Battery Conservation Tip To prevent unnecessary power drain and...
- 100W AC Outlet & 65W PD for Your Devices Power a wide range of gear with...
For anyone who wants the fastest recharge, the highest AC output, and the longest-lasting battery in this class. The 65W PD input and LiFePO4 chemistry make it the smart long-term investment.
RUNNER-UP: Takki S81
- FAST CHARGING: This portable power station can charge from 0% to 80% in...
- LARGER CAPACITY&SMALLER SIZE: With a battery capacity of 88.8Wh...
- 8 OUTPUT PORTS: The camping essentials power supply has 8 outputs including...
Best for campers who need to power multiple small devices at once with 8 output ports and two AC outlets. The built-in flashlight with SOS mode is a nice bonus for emergencies.
BEST BUDGET: Powkey 88Wh
- Remarkably Compact & Power Station: 24000mAh 88.8Wh portable power station...
- Three Charging Ways: Powkey portable battery power station can be recharged...
- High-Speed Charging: Recharges itself less in 4 hours with a high-speed...
For the budget-conscious buyer who just needs a lightweight 1.1-pound power station for charging phones and a tablet on weekend trips. Limited to 65W AC output.
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