Looking for a compact, powerful portable power station that can keep your devices running on your next trip or during an emergency?
Quick Overview
You want a portable power solution that balances capacity, durability, and fast recharging, and the Anker Portable Power Station SOLIX C300, 288Wh LiFePO4 Battery, 300W (600W Surge) Solar Generator, 140W Two-Way Fast Charging, for Outdoor Camping, Traveling, and Emergencies (Solar Panel Optional) aims to do exactly that. This model gives you 288Wh of usable energy, 300W continuous AC output (600W surge), and a fast 140W two-way USB-C charging option to keep your gear moving quickly.
Key specs at a glance
This short list helps you see the most important numbers fast so you can judge fit for your uses. Below is a simple breakdown of core specifications to help you compare at a glance.
| Feature | Specification |
|---|---|
| Battery Type | LiFePO4 (Lithium Iron Phosphate) |
| Battery Capacity | 288Wh |
| Continuous AC Output | 300W |
| Peak / Surge Output | 600W |
| Two-way USB-C Power | Up to 140W (PD) |
| AC Outlets | 3 × AC (total 300W) |
| Car Socket | 1 × 12V (120W) |
| USB-C Ports | 2 × (140W total high-power + 1 × 15W) |
| USB-A Ports | 1 × 12W |
| Fast Charge (Wall) | To 80% in ~50 minutes |
| Solar Input | Compatible with Anker 60W/100W panels (recommended); not compatible with certain SOLIX panels (PS30, PS200, PS400) |
| Noise Level | ~25 dB at 3.3 ft |
| Cycle Life | ~3,000 cycles (LiFePO4) |
| Warranty | 5 years |
| In the Box | SOLIX C300, AC charging cable, safety manual, warranty info |
Design and Portability
The SOLIX C300 is built to be carried with you, whether you’re driving to a campsite or stashing it in a travel bag. You’ll appreciate that it’s about 15% smaller than similar designs, making it easier to handle on the go.
Size and handling
Although exact dimensions and weight can vary between models, this unit is intentionally compact so you can pick it up or sling it using an optional strap. The form factor makes it straightforward to move around a campsite, trunk, or RV without feeling like you need a dedicated space for it.
Build quality and durability
Anker has designed this model with robustness in mind: LiFePO4 chemistry, impact resistance, and smart temperature control are highlighted. You’ll notice it feels solid and purpose-built rather than fragile. If you plan to use it outdoors, those durability features will matter over time.
Ports and Power Outputs
You’ll like the variety of ports on the SOLIX C300 because they let you charge many devices at once without adapters. This is especially handy when multiple people need power during a trip.
AC and car outputs
There are 3 AC outlets capable of delivering up to 300W total, and a 12V car-style socket rated to 120W. This means you can plug in small appliances, travel kettles designed for low wattage, laptops with AC adapters, or inflators. The 600W surge helps with devices that need a short burst at startup.
USB-C and USB-A ports
Fast two-way USB-C charging is one of the standout features — two USB-C ports support up to 140W for rapid device charging and recharging the unit itself via PD. There’s also a lower-power USB-C (15W) and a USB-A (12W) port for legacy devices. You’ll be set for phones, tablets, cameras, and modern laptops that take advantage of PD charging.
Simultaneous output and total power
You can run multiple ports at the same time, but keep the 300W continuous limit in mind. If you’re running several devices simultaneously, verify the combined watt draw stays below 300W to avoid overload. This is a flexible setup, but planning helps prevent unexpected shutdowns.
Charging Options and Times
How you recharge matters, because downtime is the biggest frustration with portable power. The SOLIX C300 gives you several realistic recharging routes so you can pick the one that fits your situation.
Wall charging (PD 3.1)
Using a wall outlet, the C300 can recharge very quickly thanks to the 140W two-way USB-C PD support. You can reach about 80% in roughly 50 minutes from a compatible AC source, which is superb for this capacity class. That speed gets you back to full operations quickly between uses.
Solar charging
If you want to keep your setup off-grid, pairing the C300 with a 60W or 100W Anker solar panel is recommended. With a 100W solar panel under ideal sun conditions, expect theoretical times in the 3–5 hour range to approach a full charge (real-world factors like angle, shading, cloud cover, and panel efficiency will change that). The unit is not compatible with some smaller 5V~3A USB-C panels or certain SOLIX panels, so check compatibility before buying panels.
Car charging and other methods
You can also recharge from a car socket when you’re mobile; this is slower than wall charging but handy during long drives. The PD 3.1 USB-C port can also be used for recharging with compatible USB-C chargers. Having these options means you can top up from almost anywhere.
Practical charge times
Realistic recharge times will depend on the method and conditions:
- Wall (PD, 140W): ~80% in 50 minutes; full charge in roughly 1.5–2.5 hours depending on charge curve.
- Solar (100W panel, ideal sun): ~3–5 hours to full; expect longer in imperfect conditions.
- Car charging: Several hours depending on output — useful for topping off.
- Slower USB charging options: Much longer — good for overnight or backup.
Battery Technology and Lifecycle
You’ll benefit from the underlying battery chemistry the most if you plan to use the power station frequently over years. LiFePO4 is a more stable and longer-lasting choice than many other lithium battery types.
Why LiFePO4 matters
LiFePO4 batteries are known for safety and durability. They’re less prone to thermal runaway and retain capacity over many more cycles than typical NMC cells. For you, this means a longer service life and more value over time.
Cycle life and longevity
Anker specifies about 3,000 cycles for the SOLIX C300, translating into many years of regular use — the company positions the unit to last around a decade. If you use it occasionally for trips or as a backup, that cycle life gives you confidence that the battery will still be useful long-term.
Performance in Real-World Use
Numbers are useful, but you really want to know how the unit performs during the typical tasks you’ll ask of it. Here are practical examples and estimates to help you plan.
Camping and overlanding
When camping, you’ll likely be using USB devices, a laptop, lights, a small fridge or cooler, and maybe a portable speaker. The SOLIX C300 handles phone and laptop charging easily, supports small fridges during the day, and can power LED lighting for extended hours. It’s also quiet enough to avoid disturbing a campsite.
Travel and remote work
If you work away from reliable power, the fast PD charging is a major benefit. You can recharge a laptop quickly and keep phones and monitors topped off. That fast wall recharge means you can recover capacity during breaks or while you sleep.
Emergency backup at home
For emergency use, the SOLIX C300 is a solid compact backup for phones, routers, LED lamps, small medical devices within its power limits, and other low- to mid-power essentials. It won’t run a full-size refrigerator or heavy appliances for long, but it can keep essential communications and lighting going.
Running appliances and devices — estimated runtimes
Below are conservative runtime estimates to help you plan. These are approximations based on 288Wh capacity and typical device power draws; real-world runtime will vary with efficiency and conversion losses.
| Device | Typical Power Draw | Estimated Runtime (approx) |
|---|---|---|
| Smartphone (20Wh battery) | 10–20W while charging | ~12–20 full charges (accounting for losses) |
| Laptop (USB-C, 60W) | 45–65W | ~3–5 hours |
| LED lamp (10W) | 10W | ~20–25 hours |
| Portable fridge (small, intermittent compressor) | 30–60W average | ~4–8 hours |
| CPAP machine (standard, 30–60W) | 30–60W | ~4–9 hours depending on model & settings |
| Camera battery charger | 10–30W | Multiple charges across a day |
These examples assume conversion and inefficiency losses. If you use AC converters or run many devices at once, the combined draw must stay under the 300W continuous limit.
Noise, Temperature, and Safety
You’ll want a power station that doesn’t disrupt your night or overheat in the sun. The SOLIX C300 aims to be quiet, safe, and thermally managed for outdoor use.
Noise level
At about 25 dB measured at 3.3 ft, the unit is very quiet — roughly the noise level of a whisper or quiet room background. For campsite use or indoor emergency use where you want peace and quiet, that’s an advantage.
Thermal management and safety features
Smart temperature control helps the unit maintain safe operating temperatures during charge and discharge. The LiFePO4 chemistry itself is more thermally stable than many alternatives, and Anker notes impact resistance and other built-in protections. You’ll still want to avoid storing or using it in extreme heat for long periods to maximize lifespan.
What’s in the Box
You’ll get the essentials to start using the SOLIX C300 right away, with room to add accessories as you like.
- Anker SOLIX C300 Portable Power Station
- AC charging cable
- Safety manual
- Warranty information
Note: Straps, solar panels, and other accessories are sold separately.
Pros and Cons
Summarizing the highs and lows helps you decide quickly whether this unit fits your priorities.
Pros
- Fast two-way PD charging (up to 140W) for quick top-ups and recharging.
- LiFePO4 battery chemistry with long cycle life (~3,000 cycles).
- Quiet operation (~25 dB).
- Multiple ports (3 AC outlets, car socket, multiple USB-C/A).
- Compact — about 15% smaller than comparable designs.
- 5-year warranty and robust safety features.
Cons
- 288Wh is a medium capacity — good for short trips and targeted backup but not for powering large appliances long-term.
- Not compatible with certain SOLIX panels (PS30, PS200, PS400) and some 5V USB-C solar panels.
- Optional strap and solar panels sold separately, adding to total cost if you need field solar.
- If you need extended AC runtime for heavy devices, you’ll need a larger capacity unit.
Who Should Buy It?
This product is a good fit if you fall into several common categories. Read these and see if they match what you want.
- You camp frequently and need reliable, quiet power for phones, laptops, LED lights, and small fridges.
- You travel in an RV, van, or car and want a compact backup to run devices while parked or on the move.
- You want a home emergency backup for essentials like phones, routers, and small medical devices.
- You value longer battery life and better safety over the absolute highest energy density.
- You want fast recharge capability so you can top up quickly between uses.
If your primary need is powering heavy appliances for long periods (full-size fridge, large heater, electric stove), this won’t be the right choice unless you pair it with additional battery capacity.
Tips for Getting the Most from Your SOLIX C300
A few habits and accessories will help you maximize the value and lifespan of the power station.
Choose the right solar panel
If you plan to use solar, pick a 60W or 100W Anker panel as recommended. A 100W panel will give you faster, more reliable charging in good sunlight, while a 60W is more compact and still useful. Avoid incompatible SOLIX panels mentioned by Anker.
Fast charging best practices
To achieve the advertised ~80% in 50 minutes, use a high-quality PD 3.1 USB-C wall charger and the correct cable. Charge in a cool environment when possible to keep thermal throttling to a minimum.
Storage and maintenance
Store the unit around 40–60% state of charge if you won’t use it for extended periods. Keep it in a cool, dry place away from direct sunlight or freezing temperatures whenever possible.
Plan for combined loads
When running multiple devices, add up their power draws to ensure you stay below 300W continuous. If you need a short surge for startup, the 600W peak helps, but don’t exceed the continuous rating.
Accessories to consider
- Anker 100W solar panel (or 60W for lighter setups)
- Heavy-duty shoulder strap or carrying case (sold separately)
- Extra PD charger for fast wall recharges in different locations
- Protective storage bag for travel
Comparison with Similar Power Stations
You’ll often see several models in this capacity range; here are a few generalized comparisons so you can see where the SOLIX C300 stands out.
What it does better
- Faster USB-C two-way PD than many 300W-class units, allowing both quick charging of devices and faster top-ups of the station itself.
- LiFePO4 chemistry provides much longer cycle life than NMC alternatives common in this class.
- Compact sizing — about 15% smaller than some peers.
Where others might be stronger
- Larger capacity units will obviously offer longer runtimes for heavier loads.
- Some competitors might include integrated handles or straps, whereas this model’s strap is sold separately.
- High-wattage units (1,000W+) are necessary if you need to run larger appliances continuously.
Warranty, Support, and Longevity
Anker backs this model with a 5-year warranty, which gives you peace of mind and indicates the brand’s confidence in the unit’s durability. If you use the station regularly and follow maintenance tips, the 3,000-cycle LiFePO4 battery should provide many years of reliable service.
Support and repairs
If you have a problem, contact Anker support with model and purchase information. The warranty covers defects per terms and conditions, so keep your warranty info and receipts safe.
Final Verdict
If you want a compact, durable power station with fast PD charging and long battery life thanks to LiFePO4 chemistry, the Anker SOLIX C300 is an excellent choice. It won’t replace a full home backup system, but for camping, travel, remote work, and short-term emergency use, it delivers a smart balance of speed, safety, and convenience.
Frequently Asked Questions
You probably have some practical questions before buying. Here are clear answers to common ones you’ll ask.
Can you run a full-size refrigerator with the SOLIX C300?
Not for an extended duration. The 300W continuous output and 288Wh capacity are better suited for small fridges or short-term usage. Full-size refrigerators often require more power and longer runtime than this unit provides.
Is the solar panel included?
No, solar panels are optional. Anker recommends pairing the C300 with a 60W or 100W Anker solar panel. Ensure panel compatibility before buying, because the unit is not compatible with certain SOLIX panels (PS30, PS200, PS400) and some 5V USB-C panels.
How many times can I charge my phone?
You can expect roughly a dozen or more full phone charges depending on phone capacity and losses during conversion. For example, a modern phone with a 15–20Wh battery typically allows multiple full charges from the 288Wh bank, though actual numbers vary with efficiency and usage.
Is it safe to store long term?
Yes, the LiFePO4 chemistry and smart battery management system make it safer and more stable for storage than many alternatives. Store it at around 40–60% state of charge in a cool, dry place to preserve battery health.
Can I plug multiple devices in at once?
Yes, you can use multiple ports simultaneously, but watch the combined draw so it does not exceed the 300W continuous limit. The surge capacity of 600W covers short startup spikes, but continuous use must stay below the rated limit.
What accessories should I buy?
If you want off-grid charging, add a compatible 60W or 100W Anker solar panel. Consider a PD-capable wall charger if you plan to use fast wall charging frequently, and a carrying strap or case for easier transport.
If you want, I can create a concise comparison chart showing how the SOLIX C300 stacks up against a few specific competitor models (you can name them) or produce a packing checklist for a weekend camping trip using this power station. Which would you prefer?
Disclosure: As an Amazon Associate, I earn from qualifying purchases.