SAJ is a Chinese manufacturer of solar energy equipment founded in 2005, delivering inverters and batteries globally.

Does HS3 work with other inverters?

HS3 is primarily designed for SAJ's hybrid inverters. Compatibility with other brands should be verified by the installer.

What is AI Elekeeper?

An intelligent energy management system that automatically optimizes home energy flow, prioritizes solar energy and adjusts charging based on electricity prices and weather forecasts.

Does the system work in extremely cold temperatures?

Yes, built-in self-heating enables reliable operation down to -30°C — perfect for Swedish winters.

Can I charge my EV with HS3?

Yes, with the optional integrated 11 kW AC charger you can schedule charging during low-tariff hours via the app.

SAJ HS3

Name: HS3
Brand: SAJ
SKU: hs3

Compact hybrid inverter with integrated battery storage and flexible modular design.

Capacity

5–40 kWh

Power

5–12 kW

Warranty

10 years

Cell type

LFP

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Benefits of SAJ HS3

Hybrid inverter

Combines inverter and battery management in a compact unit for easier installation.

Flexible 5–40 kWh

Modular design that suits both new installations and retrofits.

Dynamic load balancing

Advanced energy management with support for time-of-use tariffs and load balancing.

10-year warranty

Proven LFP technology delivering reliable performance year after year.

All-in-one energy solution

SAJ HS3 combines inverter (5–12 kW), LFP batteries (5–40 kWh) and optional EV charger in a single modular unit. At only 17 cm deep, it fits easily on most walls and is IP65-rated for both indoor and outdoor use.

Ultra-thin format — only 170 mm deep
Integrated 11 kW AC EV charger (optional)
IP65-rated for outdoor installation

We help you with free guidance

Our dedicated team of experts is here to help you with everything from technical questions to practical advice on solar panels, battery storage, and electricity contracts. Let us help you!

See your price 08-502 803 57

AI-optimized energy management

With SAJ's AI Elekeeper you get full control over your home and energy flow is optimized automatically. The system prioritizes solar energy in real time, stores surplus automatically and adjusts battery charging based on electricity prices and weather forecasts.

Invoice

2026-03-09

Product

Incl. installation

89 900 kr

Green Technology deduction (50%)

-44 950 kr

To pay

44 950 kr

You save 44 950 kr

* Example shows tax reduction on material cost. Actual deduction depends on individual circumstances. Max SEK 50,000/person/year.

Save 50% with Green Technology

The Green Technology deduction entitles you to a 50% tax reduction on material costs (max SEK 50,000 per person per year). The deduction is made directly on the invoice.

50% tax reduction on materials
Deduction made directly on invoice

See your price with deduction

Works in all weather

Built for Nordic conditions with self-heating ensuring reliable operation down to -30°C. Advanced overvoltage and short-circuit protection provides safe energy storage regardless of weather.

Self-heating down to -30°C
UPS function — under 10 ms switchover during power outages
Advanced overvoltage and short-circuit protection

Specifications

Capacity5–40 kWh

Power5–12 kW

Warranty10 years

Cell typeLFP

Cycles6000

Efficiency95%

Backup functionJa

ModularJa

Frequently asked questions about SAJ HS3

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SAJ HS3