If you’re shopping for a powerful, expandable solar generator that can handle everything from off-grid cabins to home backup power, the Hysolis MPS3K is worth serious consideration.
Based on manufacturer specs, real-world user feedback, and its standout technical features, this guide will help you decide if the MPS3K is the right choice for your energy needs.
Whether you’re a prepper, homesteader, or just want reliable backup during power outages, the MPS3K offers professional-grade performance in a rugged, modular design.
Product Specifications
| Feature | Specification |
|---|---|
| Battery Capacity | 4,500Wh (expandable to 72,000Wh) |
| Inverter Power | 3,000W continuous / 6,000W surge |
| Battery Type | LiFePO4 |
| Weight | 121 lbs (main unit) |
| Charging Methods | AC, Solar (up to 3,000W), Car |
| Solar Input | 150V / 3,000W max |
| Cycle Life | 6,000+ cycles (80% capacity) |
| AC Outlets | 6 × 120V |
| Expandability | Stackable with additional MPS battery modules |
Performance
The Hysolis MPS3K is engineered for high-demand power applications. With a pure sine wave inverter rated at 3,000W (6,000W surge), it can run large appliances like refrigerators, microwaves, power tools, or even a well pump.
It’s particularly well-suited for:
- Off-grid cabins
- Emergency home backup
- Job site power
- Events or remote workstations
Thanks to its modular battery bank, you can start with 4,500Wh and add additional units for up to 72kWh of capacity — enough to power an entire home for days.
Battery & Specs
- Battery Chemistry: LiFePO4 (safe, long-lasting)
- Lifespan: 6,000+ charge cycles at 80% depth
- Internal Capacity: 4.5kWh
- Expandability: Stack up to 16 external battery modules
Its industrial-grade LiFePO4 cells offer exceptional durability, with significantly longer lifespan compared to typical lithium-ion models.
Portability & Design
At 121 lbs, the MPS3K isn’t exactly portable in the traditional sense. But it’s built to be modular and movable, with built-in handles and stackable battery units. It’s not for backpacking or vanlife, but it’s ideal for truck transport, cabin installs, or stationary setups.
The robust case and fan ventilation system give it an edge in durability, and it’s designed for both indoor and semi-outdoor use (under cover).
Charging Options
One of the most impressive features is the 3,000W solar input capacity — among the highest in its class. This means you can recharge the base unit in under 2 hours with optimal solar conditions.
Charging Methods:
- AC Wall Charging (standard cable included)
- Solar Input (up to 150V / 3,000W)
- Car Charging (optional accessory needed)
MPPT charge controllers are built-in for fast and efficient solar harvesting.
Price & Value
The Hysolis MPS3K starts around $3,300 for the base unit with 4.5kWh of battery. Considering its pure sine wave inverter, high solar input, and expandable battery platform, it offers exceptional value per watt-hour in the high-performance category.
Additional battery modules cost around $2,400 each, making it one of the most scalable systems for long-term off-grid setups.
Ideal Use Cases
- Full Off-Grid Systems – Pair with solar panels and extra batteries for long-term living
- Emergency Home Backup – Run critical appliances for extended outages
- Construction Sites – Quiet, fuel-free power for tools and equipment
- Event & Media Crews – Silent AC power for lighting, sound, and charging gear
Not ideal for:
- Lightweight travel
- RVs with limited storage
- Users who want app-based smart features
Pros and Cons
Pros
- Massive 3,000W inverter with 6,000W surge
- Extremely expandable (up to 72kWh)
- LiFePO4 chemistry = safe and long-lasting
- High solar input (3,000W) for rapid charging
- Pure sine wave power suitable for sensitive electronics
Cons
- Heavy and bulky — not easily portable
- No built-in WiFi/app connectivity
- Car charging adapter sold separately
- Not budget-friendly for casual users
Final Verdict
The Hysolis MPS3K is one of the most powerful, modular solar generators available today. It’s not for weekend campers or RVers — it’s designed for serious power needs, whether off-grid, backup, or pro-level use.
If you want a future-proof system with excellent solar integration, safe battery chemistry, and the ability to scale up to whole-home capacity, the MPS3K stands out as a top-tier option.
FAQs
How fast can the MPS3K charge from solar?
With 3,000W of solar panels and good sun, the base 4.5kWh unit can charge in under 2 hours.
Can I use the MPS3K indoors?
Yes, it’s safe for indoor use thanks to zero emissions and silent operation. Just ensure proper ventilation.
Is the system plug-and-play?
Mostly. Setup is straightforward for basic use, but large off-grid systems may benefit from a licensed electrician, especially for 240V split-phase configurations.
What panels work best with it?
Any high-efficiency panels with an open-circuit voltage (VOC) under 150V will work. MC4 connectors are standard.