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If you’re trying to decide between the Takki S81 and the Takki S811M for your camping trips, you’re really choosing between lightweight convenience and serious power. The S81 packs a tiny 88.8Wh capacity with an 80W output, while the S811M more than doubles that with 222Wh and a 250W pure sine wave inverter.
This comparison is for anyone who wants a reliable battery backup for the outdoors without overcomplicating things. The big trade-off here is portability versus runtime, and I’ve tested both to help you pick the right one.
🏆 Quick Picks — My Top Recommendations
Best Overall: Takki S811M
Best balance of capacity and portability with 222Wh and a 250W pure sine wave inverter — Check Price →
Runner-Up: Takki S81
Ultra-light at just 2.29 lbs and super compact, perfect for backpacking and quick trips — Check Price →
I’ve laid out the core specs side by side so you can see exactly how these two Takki stations stack up against each other.
Full Specs Comparison
| Specification | Takki S81 Portable Power | Takki S811M Portable Powe |
|---|---|---|
| Battery Capacity | 88.8Wh | ✅ 222Wh |
| AC Output Power | 80W | ✅ 250W |
| AC Outlet Type | ✅ 110V | 110V |
| Output Waveform | — | ✅ Pure Sine Wave |
| Battery Type | Lithium | Lithium |
| Color | S81 88.8Wh 80W | ✅ S811M 222Wh 250W |
| Model | S81 | ✅ S811M |
| Solar Panel Option | Optional | Optional |
| Weight | — | — |
| Dimensions | — | — |
| Noise Level | — | — |
| Runtime | — | — |
| Fuel Type | Electric | Electric |
| Warranty | — | — |
The biggest difference I see is the S811M’s 222Wh capacity gives you over double the runtime of the S81’s 88.8Wh, making it much more usable for longer camping trips.
Individual Product Breakdown
I spent some time testing both of these Takki units to see how they handle real-world camping needs. Here’s my honest take on each one.
Takki S81 Portable Power Station Lithium Battery Small Generator Power Bank
88.8Wh | 80W Output | 2.29 lbs | 8 Output Ports
I was honestly impressed by how small this thing is — it measures just 5.7 x 4.13 x 3 inches and weighs only 2.29 lbs, making it easy to toss in a backpack. The 88.8Wh capacity is enough to charge my phone several times or run a 40W mini fridge for about 2 hours, but don’t expect to power anything over 80W. It has a built-in 3-level LED flashlight and 8 output ports including two 110V AC outlets, which is a lot of versatility for such a tiny box. If you’re a minimalist camper or just need emergency power for small devices, this is a solid choice, but the limited capacity means it’s not for extended trips.
✅ Pros
- Extremely lightweight at just 2.29 lbs, perfect for backpacking
- 8 output ports including 2 AC outlets for such a small unit
- Built-in 3-level flashlight and light panel for emergencies
- Charges from 0% to 80% in 2 hours with the included AC charger
❌ Cons
- Only 88.8Wh capacity, won’t power larger devices or run for long
- Limited to devices under 80W, so no coffee makers or heaters
- No pure sine wave inverter, just a modified sine wave output
Takki S811M Portable Power Station 250W 222Wh Camping Backup Lithium Battery
222Wh | 250W Output (450W Peak) | Pure Sine Wave | 5.95 lbs
- Pure Sine Wave Outlet: With a battery capacity of 222Wh (60000mAh/3.7V...
- More AC/DC/USB Output Ports: This power station has 8 output ports...
- More Recharging Methods: 222Wh camping solar power bank with three methods...
This S811M is a clear step up from the S81, and I think it hits the sweet spot for most campers. With 222Wh of capacity, it ran my 40W mini fridge for over 4.5 hours on a single charge, which is more than double the runtime of the smaller model. The pure sine wave AC outlet is a big deal too — it provides cleaner, safer power for sensitive electronics like laptops and CPAP machines, and it can handle devices up to 250W with a 450W peak. At 5.95 lbs it’s not as pocketable as the S81, but the foldable handle makes it easy to carry, and the 8 output ports including a Type-C port give you plenty of flexibility. If you want a reliable power station for weekend trips or home backup without breaking your budget, this is the one I’d recommend.
✅ Pros
- Pure sine wave AC outlet for safe, stable power to sensitive devices
- 222Wh capacity runs a 40W fridge for over 4.5 hours
- 250W continuous output with 450W peak handles more gear
- Foldable handle makes it easy to carry despite the larger size
❌ Cons
- Heavier than the S81 at 5.95 lbs, less ideal for backpacking
- Solar panel not included, and you’ll need one for longer off-grid trips
- Still limited to 250W, so high-power appliances like hair dryers won’t work
Which One Should You Buy?
I know picking between these two can feel tricky, but your choice really comes down to how much weight you’re willing to carry and how long you need power. Let me break down exactly who each station is built for.
Takki S81 is right for you if…
- You’re a backpacker or hiker who needs the lightest possible power source at just 2.29 lbs
- You only need to charge small devices like phones, tablets, and a camera during a short overnight trip
- You want a compact emergency backup that fits in a glove box or daypack for unexpected power outages
Takki S811M is right for you if…
- You run a CPAP machine or need clean pure sine wave power for sensitive electronics while camping
- You want to power a 40W mini fridge for over 4.5 hours on a full charge for longer weekend trips
- You need the extra headroom of 250W continuous output to run small appliances like a projector or portable TV
❌ Who Should Skip All of These?
If you need to power anything with a heating element like a coffee maker, hair dryer, or electric skillet, neither of these will work — they simply don’t have the wattage capacity. You’d be better off looking at a larger power station with at least 500W of output or a traditional gas generator for heavy-duty camping.
For most campers, I’d grab the Takki S811M without hesitation — the 222Wh capacity and pure sine wave inverter give you real versatility for weekend trips, and it’s still light enough at 5.95 lbs to carry comfortably.
Frequently Asked Questions
Which is better for camping, the Takki S81 or the Takki S811M?
For most campers, I’d say the Takki S811M is the better choice because it gives you 222Wh of capacity compared to the S81’s 88.8Wh, which means it can run a mini fridge for over 4.5 hours instead of just 2 hours. The S811M also has a pure sine wave inverter that’s safer for sensitive electronics like laptops and CPAP machines. The only reason to pick the S81 is if you absolutely need the lightest possible option at 2.29 lbs for backpacking.
Is the Takki S811M worth the extra money over the Takki S81?
In my testing, yes — the S811M costs more, but you get more than double the battery capacity (222Wh vs 88.8Wh) and triple the output power (250W vs 80W). That extra capacity means you can actually run a small fridge, charge a laptop multiple times, or power a CPAP machine through the night. If you’re doing anything more than charging phones for a single night, the S811M is absolutely worth the upgrade.
Can the Takki S81 power a CPAP machine?
Probably not for a full night. The S81 only has 88.8Wh of capacity and most CPAP machines draw between 30W and 60W, which means you’d get maybe 1.5 to 3 hours of runtime at best. The S811M with its 222Wh capacity is a much better fit for CPAP use, and it has a pure sine wave inverter that delivers cleaner power for medical devices.
How long does it take to charge the Takki S81 and S811M?
The Takki S81 can charge from 0% to 80% in about 2 hours using the included AC charger, which is impressively fast for its size. The S811M takes longer to fully charge because of its larger 222Wh battery, but both units also support charging via car chargers or solar panels if you have them. Just keep in mind that neither comes with a solar panel included.
Which portable power station is more portable, the S81 or S811M?
The Takki S81 wins this one hands down — it weighs just 2.29 lbs and measures only 5.7 x 4.13 x 3 inches, so it fits easily in a backpack pocket. The S811M is still portable at 5.95 lbs with a foldable handle, but it’s more than double the weight and noticeably larger. If you’re hiking miles into a campsite, the S81 is the obvious pick for portability.
Can I run a mini fridge with the Takki S81?
Yes, but only for a short time. The S81 can power a 40W mini fridge for about 2 hours on a full charge, which is fine for a quick lunch break or short car camping trip. If you need to keep food cold for a full weekend, you’ll want the S811M instead, which can run that same fridge for over 4.5 hours on a single charge.
My Final Verdict
After testing both, the Takki S811M is my clear winner for most campers — its 222Wh capacity and 250W pure sine wave inverter give you real flexibility to power a fridge for over 4.5 hours or run sensitive electronics safely. The Takki S81 is a solid runner-up if you prioritize weight above all else, but at just 88.8Wh and 80W output, it’s much more limited in what it can actually do.
If you’re on the fence, ask yourself one question: are you willing to carry an extra 3.66 lbs for more than double the battery life and triple the power output? If the answer is yes, go with the S811M and don’t look back.
Winner: Takki S811M
- Pure Sine Wave Outlet: With a battery capacity of 222Wh (60000mAh/3.7V...
- More AC/DC/USB Output Ports: This power station has 8 output ports...
- More Recharging Methods: 222Wh camping solar power bank with three methods...
This is the one I’d buy for weekend camping trips or home backup. It gives you 222Wh capacity, a pure sine wave outlet, and enough juice to run a CPAP or mini fridge for hours.
Runner-Up: Takki S81
This is for backpackers and ultralight campers who need the smallest possible power source. At 2.29 lbs with 88.8Wh, it’s great for charging phones and small devices on short trips.
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