Description
iTel IESS-3K680N Solar Generator All in One with 3600W Inverter, 8000Wh Lithium Battery
The iTel IESS-3K680N is a powerful all-in-one solar generator designed to provide reliable backup electricity for homes, offices, businesses, shops, and off-grid applications. Combining a high-capacity LiFePO₄ battery, pure sine wave inverter, intelligent charging technology, and UPS functionality in one compact system, it offers a convenient and dependable alternative to traditional backup power solutions.
Powerful 8,000Wh Energy Storage
At its core is an 8,000Wh LiFePO₄ lithium battery operating on a 48V system. With over 6,000 charge cycles, the battery is engineered for long-term daily use while maintaining reliable performance.
LiFePO₄ battery technology provides excellent safety, stable power delivery, high efficiency, and a longer service life compared with conventional battery technologies.
3,600W Pure Sine Wave Inverter
The integrated 3,600W continuous pure sine wave inverter delivers clean and stable AC electricity for a wide range of household and business equipment. It supports sensitive electronics and essential appliances while minimizing electrical noise and power distortion.
The system also provides up to 8,000W surge capacity, allowing it to handle higher startup loads from compatible appliances.
Fast UPS Backup
With a UPS switchover time of less than 16 milliseconds, the iTel IESS-3K680N can quickly transition to battery power when grid electricity fails. This helps minimize interruptions to computers, routers, televisions, work equipment, and other connected devices.
Flexible Dual Charging
The generator supports charging through both solar panels and PHCN/grid electricity. Its integrated MPPT solar charger supports up to 1,000W of solar input, helping maximize available solar energy and improve charging efficiency.
This dual-charging capability gives users greater flexibility, whether they are relying primarily on solar energy or using the grid to recharge the system when necessary.
Reliable Backup for Everyday Essentials
Depending on the connected load, the 8,000Wh battery capacity can provide extended backup power for essential devices such as:
- LED lighting
- Fans
- Televisions
- Wi-Fi routers
- Laptops and computers
- Small appliances
- Other essential electronics
Actual runtime will vary according to the total power consumption of connected devices.
Compact All-in-One Design
Unlike conventional backup systems that require separate batteries, inverters, and charging equipment, the iTel IESS-3K680N integrates the major components into a single unit. This simplifies installation, reduces space requirements, and provides a cleaner power solution for homes, offices, businesses, and remote locations.
Key Specifications
| Feature | Specification |
|---|---|
| Battery Capacity | 8,000Wh LiFePO₄ |
| System Voltage | 48V |
| Inverter Output | 3,600W continuous |
| Inverter Type | Pure Sine Wave |
| Surge Capacity | Up to 8,000W |
| Solar Input | Up to 1,000W |
| Charging Options | Solar + PHCN/Grid |
| UPS Switchover | Less than 16ms |
| Battery Cycle Life | 6,000+ cycles |
A Smarter Way to Stay Powered
The iTel IESS-3K680N combines high-capacity energy storage, efficient solar charging, clean AC power, and rapid UPS backup in one practical system. Whether you need dependable electricity during grid outages, a solution for business operations, or a convenient off-grid power source, it provides a flexible and long-lasting way to keep essential equipment running.
What Can the iTel IESS-3K680N Power?
The iTel IESS-3K680N is designed to support a wide range of household, office, and business equipment. Actual runtime depends on the combined power consumption of connected devices, battery condition, inverter efficiency, and operating conditions.
Real-World Usage Scenarios
| Scenario | Typical Loads Running Together | Approx. Load | Estimated Runtime* |
|---|---|---|---|
| Basic Home Night | 5 bulbs, 2 fans, TV, router, 3 phones | ~345W | ~19.2 hrs |
| Work From Home | 3 bulbs, fan, laptop, router, Starlink | ~255W | ~26.0 hrs |
| Movie Night | 3 bulbs, TV, soundbar, fan | ~265W | ~25.0 hrs |
| Small Shop Night | 10 bulbs, 2 fans, POS, router, small TV | ~315W | ~21.0 hrs |
| Cold Appliances Only | Refrigerator + deep freezer | ~220W | ~30.1 hrs |
| Heavy-Use Home | 5 bulbs, 3 fans, TV, 3 laptops, Starlink | ~630W | ~10.5 hrs |
| AC + TV + Freezer + Lights | Inverter AC (~600W avg), TV, deep freezer, 5 DC bulbs | ~944W | ~7.0 hrs |
*Runtime estimates are approximate and can vary significantly depending on actual appliance consumption, cycling loads, battery reserve settings, and system efficiency.
Estimated Runtime by Individual Device
| Device | Assumed Average Power | Approx. Battery Draw** | Estimated Runtime* |
|---|---|---|---|
| 1 LED bulb | 10W | 10.9W | ~662 hrs |
| 5 LED bulbs | 50W | 54.3W | ~122 hrs |
| Ceiling/standing fan | 75W | 81.5W | ~81 hrs |
| 2 fans | 150W | 163W | ~40.5 hrs |
| LED TV (43–55″) | 100W | 108.7W | ~60.7 hrs |
| Decoder/streaming stick | 10W | 10.9W | ~662 hrs |
| Wi-Fi router | 15W | 16.3W | ~405 hrs |
| Starlink kit | 75W | 81.5W | ~81 hrs |
| Laptop charging | 60W | 65.2W | ~101 hrs |
| 3 laptops charging | 180W | 195.7W | ~33.7 hrs |
| Phone charging | 10W per phone | 10.9W | ~662 hrs |
| Deep freezer | 100W avg. | 108.7W | ~60.7 hrs |
| Refrigerator | 120W avg. | 130.4W | ~50.6 hrs |
| Home theatre/soundbar | 60W | 65.2W | ~101 hrs |
| Inverter AC – Eco/Sleep | 450W avg. | 489.1W | ~13.5 hrs |
| Inverter AC – Small | 600W avg. | 652.2W | ~10.1 hrs |
| Inverter AC – 1.0 Ton | 900W avg. | 978.3W | ~6.75 hrs |
| Inverter AC – 1.5 Ton | 1,200W avg. | 1,304.3W | ~5.06 hrs |
| Inverter AC – Heavy Use | 1,500W avg. | 1,630.4W | ~4.05 hrs |
Battery-draw figures assume approximately 92% inverter efficiency. Actual results will vary.
Running Multiple High-Demand Appliances
The 3,600W continuous pure sine wave inverter provides substantial capacity for simultaneous appliance use.
For example, a typical combination could include:
- 1.5 HP inverter AC: ~1,100–1,300W
- Inverter refrigerator: ~150W
- LED lighting: ~50–100W
- TV + Wi-Fi + decoder: ~150W
- Laptop and phone chargers: ~100W
- Fans and other small appliances
This combination can total approximately 1,600–2,000W, comfortably below the unit’s 3,600W continuous output rating.
The 8,000W surge capacity also provides additional headroom for short-duration startup demands from compatible appliances. However, actual startup requirements vary by appliance, so high-power loads should always be checked against their rated and starting wattage.
Approximate Backup Expectations
Using an approximately 8kWh battery capacity as a reference:
- ~1kW load: approximately 8 hours
- ~1.5kW load: approximately 5–6 hours
- ~2kW load: approximately 4 hours
For practical planning, expect roughly 4–8 hours of backup under moderate-to-heavy loads, with considerably longer runtimes when powering only essential low-wattage devices.
Dual Charging Capability
The iTel IESS-3K680N supports two primary charging methods:
Solar Charging
- Up to 1,000W solar input
- Integrated MPPT solar charging
- 40–450V MPPT operating range
Grid/PHCN Charging
- Up to 3,000W grid charging
Using solar and grid power gives users greater flexibility to replenish the battery during the day and maintain reliable backup capacity when grid electricity is available.
Ideal Applications
The iTel IESS-3K680N is suitable for:
- Whole-home backup power
- AC-supported backup applications
- Shops and small businesses
- Home offices and remote work
- Commercial energy storage
- Off-grid homes, farms, and cabins
- Emergency backup for essential business equipment
- Powering refrigerators, freezers, lighting, electronics, and other appliances
Its integrated design also reduces the need for multiple separate components, creating a cleaner and more convenient backup-power setup.
Key Considerations
8kWh Battery Capacity
The 8,000Wh battery provides substantial energy storage, but runtime depends directly on the connected load. A 2kW continuous load, for example, will consume energy much faster than basic lighting and networking equipment.
Solar Panels Are Sold Separately
The system supports up to 1,000W of solar input, but solar panels are not included in the generator and must be purchased separately.
Weight and Mobility
At approximately 150kg, the unit is designed as a substantial stationary or semi-mobile power system. Wheels can make repositioning easier, but moving it may still require assistance because of its weight.
Technical Specifications
| Specification | Details |
|---|---|
| Inverter Output | 3,600W continuous |
| Surge Capacity | Up to 8,000W |
| Waveform | Pure sine wave |
| Battery | 8,000Wh LiFePO₄ |
| System Voltage | 48V |
| Battery Cycle Life | 6,000+ cycles |
| Solar Input | Up to 1,000W |
| MPPT Range | 40–450V |
| Grid Charging | Up to 3,000W |
| UPS Switchover | <16ms |
| Display | LED system display/diagnostics |
| Weight | Approximately 150kg |
| Mobility | Wheels included |
Safety & Protection
The system incorporates protection features designed to help safeguard the unit and connected equipment, including:
- Overvoltage protection
- Short-circuit protection
- Temperature protection
Certifications & Warranty
- CE
- RoHS
- UN38.3
- 5-year limited warranty
Why Choose the iTel IESS-3K680N?
The iTel IESS-3K680N combines a large 8,000Wh LiFePO₄ battery, 3,600W pure sine wave inverter, rapid UPS functionality, and flexible solar/grid charging in one integrated power system.
It is particularly well suited to users who need reliable backup for air conditioners, refrigerators, freezers, fans, lighting, computers, networking equipment, and other essential electronics.
In Summary
The iTel IESS-3K680N offers:
- 8kWh high-capacity energy storage
- 3,600W continuous AC output
- 8,000W surge capacity
- Pure sine wave power
- Up to 1,000W solar charging
- Up to 3,000W grid charging
- Fast UPS switchover of less than 16ms
- Long-life LiFePO₄ battery technology
- All-in-one design for simpler installation and operation
For homes, offices, shops, and off-grid applications, it provides a powerful and flexible backup-energy solution designed to keep essential equipment running when reliable electricity is needed most.
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