KANK has released its KK-9660, KK-9661 and KK-9662 all-in-one hybrid solar inverter series for customers who need one coordinated power-conversion platform for home backup, small commercial PV, telecom and remote-area energy systems. The series combines PV charging, battery management and AC output, helping buyers reduce wiring complexity and select a clearer system architecture.
For a project owner, the real question is not simply "How many watts is the inverter?" It is whether the inverter can start the required loads, work with the selected battery, accept the planned PV array and switch safely between grid, solar and backup power. This launch is designed around those practical decisions.
Product display: front view of the KANK hybrid on/off-grid inverter.
What is integrated in the all-in-one inverter?
The KK-9660/KK-9661/KK-9662 family integrates the main power-conversion functions used in a hybrid solar system: PV charging through a built-in MPPT charger, battery management, and AC output. It supports pure sine wave output and hybrid on-grid/off-grid operation. This makes it suitable for systems where the buyer wants solar generation, battery storage and backup loads coordinated through one inverter platform.
Model range and confirmed selection points
| Model | Rated power | AC voltage options | Key configuration |
|---|---|---|---|
| KK-9660 | 3.6 kW | 220 V / 230 V / 240 V | Pure sine wave, built-in MPPT, hybrid on/off-grid |
| KK-9661 | 6.2 kW | 220 V / 230 V / 240 V | Pure sine wave, built-in MPPT, hybrid on/off-grid |
| KK-9662 | 11 kW | 220 V / 230 V / 240 V | Pure sine wave, built-in MPPT, hybrid on/off-grid |
Communication options include RS485 and RS232, with Wi-Fi available as an option. Final battery voltage, PV operating range, AC frequency, protection settings and local grid compatibility must be confirmed against the selected model data sheet before quotation.
Use case: the product visual shows an outdoor home backup installation. Confirm the exact enclosure rating and installation requirements for the model ordered.
Where can customers use it?
- Home backup: keep essential circuits such as lighting, refrigeration, communications and pumps available when the grid is unstable.
- Small commercial PV: coordinate daytime solar production with battery storage and selected backup loads.
- Remote-area systems: provide a practical power-conversion platform for cabins, farms, telecom and other off-grid sites.
- OEM and wholesale projects: use the same series as a starting point for private-label, distribution or multi-site procurement after technical confirmation.
Common problems solved before ordering
1. The inverter is rated high enough, but the motor will not start
Check both continuous load and surge load. Pumps, compressors and refrigeration equipment may need a higher starting capacity than their running label suggests. Send the appliance list and starting characteristics so the correct model can be reviewed.
2. The battery does not charge as expected
Confirm battery chemistry, nominal voltage, charging limits and the PV array operating range. A larger PV nameplate alone does not guarantee correct charging if the voltage or current is outside the inverter's permitted range.
3. Grid and backup wiring is unclear
Separate essential and non-essential loads, confirm the local 220/230/240 V requirement and use the final wiring diagram supplied for the selected model. A qualified installer should complete protection, grounding and commissioning.
4. Outdoor installation creates heat, rain or dust concerns
Allow ventilation and service clearance, protect cable entries and follow the installation manual. The product visual highlights an IP54 protection concept; confirm the exact model rating and site conditions before purchase.
Product detail: rear AC, PV and communication connection area for installation planning.
What information should you send for a fast quotation?
To receive a practical recommendation instead of a generic price, send:
- Country, grid voltage and AC frequency;
- Continuous load, motor/compressor starting load and essential-load list;
- Battery chemistry, nominal voltage and desired backup time;
- PV module quantity, total power, open-circuit voltage and operating voltage;
- On-grid, off-grid or hybrid operating mode;
- Quantity, target delivery date and OEM/private-label requirements.
KANK can then review whether the 3.6 kW, 6.2 kW or 11 kW series is the better starting point, confirm communication options and provide the correct technical documents for your project.
For background, see our guide on how a solar inverter converts DC to AC. For product details, visit the KK-9660/KK-9661/KK-9662 hybrid inverter page or send an inquiry with your load and battery information.
