PurMars 300W (288Wh) at a glance
In short: the PurMars 300W (288Wh) scores 7,6/10 in our power station review (from €159). Biggest strength: pure sine wave socket. Main compromise: 300 W limit.
All specifications come from manufacturer data sheets and the Amazon catalogue and were cross-checked before publication. The rating is an editorial overall assessment based on this data; we do not trial products ourselves.
PurMars 300W (288Wh): what works, what doesn't?
What works well
- Pure sine wave socket: delivers 230 V power in mains quality, gentle on sensitive devices and reduces interference noise
- Long-lived LiFePO4 cells: over 2000 charge cycles according to the manufacturer, significantly more than classic lead-acid batteries
- 7 devices in parallel: AC, USB and DC at the same time, phone, laptop, fan and small appliances all at once
- Rucksack-friendly: 4.2 kg with a carrying handle, fits compactly into a rucksack or bag
- Comprehensive BMS: protection against short circuit, overload, overheating and deep discharge; CE, FCC, UN38.3 certified
Points of criticism
- 300 W limit: devices above 300 W rated power (kettle, fan heater, hairdryer) will not run, a pure small-load station
- No-name brand: PurMars is little established; a residual risk remains with warranty handling and spare-part support
- Solar panel missing: solar charging is advertised, but the matching panel has to be bought separately
Specifications in detail
| Type | Portable power station |
| Capacity | 288 Wh (90,000 mAh) |
| AC continuous output | 300 W (max. 500 W) |
| Socket | 230 V pure sine wave |
| Cell chemistry | LiFePO4 |
| Charge cycles | over 2000 |
| Outputs | up to 7 devices at once |
| Charging options | AC / car / solar (panel separate) |
| Weight | 4.2 kg |
Build quality & everyday use
What carries the PurMars 300W (288Wh) in everyday use: Pure sine wave socket (delivers 230 V power in mains quality, gentle on sensitive devices and reduces interference noise) and Long-lived LiFePO4 cells (over 2000 charge cycles according to the manufacturer, significantly more than classic lead-acid batteries). We have to be honest about the weaknesses: 300 W limit, since devices above 300 W rated power (kettle, fan heater, hairdryer) will not run, a pure small-load station.
If you set the device up to save space, make sure it stands on a stable, level surface with some air around it. This protects the mechanics and electronics in continuous use.
Who is the PurMars 300W (288Wh) suited to? (buying advice)
Perfect for:
- ✓Weekend camping with phone, laptop and LED light
- ✓Off-grid trips and fishing outings
- ✓Emergency power for small devices during a short power cut
- ✓Beginners looking for an affordable pure sine wave station
Less suitable for:
- ✕Running a kettle, hairdryer or heaters (over 300 W)
- ✕Continuous operation of whole households or tools
- ✕Buyers who absolutely need established brand support
Similar power station models
Frequently asked questions about the PurMars 300W (288Wh)
Can I run a kettle on the PurMars 300W?
How many smartphone charges does the 288 Wh station manage?
Is the PurMars suitable for solar charging?
How do I store the power station properly?
Verdict: is the PurMars 300W (288Wh) worth it?
A solid option with a clear profile: if you can live with the 300 W limit, from €159 you get mainly one thing: a pure sine wave socket. It suits best: weekend camping with phone, laptop and LED light.
If you want to compare alternatives, you will find detailed data and reviews on our power stations comparison page.
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