Dimax Group Konner-Sohnen KS SP28W-4 Owner's Manual

The Dimax Group Konner-Sohnen KS SP28W-4 is a 28-inch portable solar power station with a 600W pure sine wave inverter, 518Wh lithium-ion battery capacity, multiple AC/DC/USB outputs, MPPT solar charge controller, and LCD display. Designed for outdoor, emergency, and off-grid power needs. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Connecting Devices 7. Solar Charging 8. Safety Features 9. Care & Maintenance 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Portable power station unit, AC power adapter, Solar charging cable, User manual, Carrying handle, LCD display panel.

FeatureDescription
AC Output2 x 120V AC outlets (600W continuous, 1200W surge)
DC Output1 x 12V/10A car port; 2 x 5.5mm DC ports
USB Outputs2 x USB-A (5V/2.4A), 1 x USB-C PD (60W)
Battery Capacity518Wh Lithium-ion (LiFePO4)
Solar InputMPPT controller, max 200W solar panel input
AC ChargingStandard wall outlet (0-100% in ~7 hours)
LCD DisplayShows battery level, input/output power, warnings
Cooling FanTemperature-controlled for quiet operation
Carrying HandleIntegrated for easy portability
Overload ProtectionAutomatic shutdown on overload/short circuit

Installation

Unpack and inspect contents. Place on stable, dry surface away from direct sunlight and moisture.

  1. Initial Charge: Connect AC power adapter to unit and wall outlet for full charge before first use.
  2. Solar Panel Setup: Connect compatible solar panel (max 200W) to SOLAR INPUT port using provided cable.
  3. Device Connection: Plug devices into appropriate AC, DC, or USB ports based on power requirements.
  4. Power On: Press and hold POWER button for 3 seconds to activate unit.

WARNING! Do not expose to water or extreme temperatures. Ensure ventilation around cooling vents.

First-Time Setup

Power on unit; monitor LCD display for status.

  1. Initial Charge: Charge fully via AC adapter (LCD shows charging progress).
  2. Display Check: Verify all LCD icons are visible and battery percentage shows.
  3. Output Test: Connect low-power device (e.g., phone charger) to test USB output.
  4. System Settings: Press SETTINGS button to configure LCD brightness, auto-shutdown timer.

CAUTION! Use only provided or manufacturer-approved cables. Do not modify ports.

Specifications

Controls and Settings

Front Panel: POWER button, LCD display, SETTINGS button, OUTPUT ON/OFF switches for AC/DC.

LCD Icons: Battery percentage, Input/Output power (W), Temperature warning, Overload alert.

Settings Menu: Press SETTINGS button to cycle through options: LCD brightness (1-5), Auto-shutdown timer (2/4/6/8 hrs/Off), Battery saver mode (On/Off), System reset. Use POWER button to confirm selection.

Connecting Devices

AC Devices: Plug into AC outlets (max 600W total). DC Devices: Use car port or DC ports. USB Devices: Use USB-A or USB-C ports.

  1. Check device power requirements (Watts/Amps) before connecting.
  2. Turn on AC/DC output switch corresponding to connected port.
  3. Monitor LCD for total output power; ensure it does not exceed 600W.
  4. For high-power devices (e.g., mini-fridge), connect directly, avoid extension cords.

Tip: Start high-power devices individually to prevent overload.

Solar Charging

Supports solar panel charging via MPPT controller for efficient power conversion.

  1. Panel Compatibility: Use 12-30V solar panel(s) with max 200W combined power.
  2. Connection: Connect panel to SOLAR INPUT port using provided cable (polarity protected).
  3. Positioning: Angle panel towards sun for optimal charging (LCD shows solar input power).
  4. Charging Time: Approx. 4-8 hours from 0-100% with 200W panel under ideal conditions.
  5. Monitoring: LCD displays solar icon and input power when charging.

WARNING! Do not exceed 30V input. Disconnect in storms or extreme weather.

Safety Features

Overload Protection: Auto-shutdown if total load exceeds 600W. Short Circuit Protection: Cuts output on DC/USB short. Temperature Control: Fan activates at 104°F (40°C); shutdown at 149°F (65°C). Low Voltage Protection: Auto-shutdown at 10% battery to prevent damage.

Care & Maintenance

Store in cool, dry place. Clean with dry cloth; do not use liquids. Recharge every 3 months if storing long-term. Check connections periodically for corrosion.

CAUTION! Do not disassemble. No user-serviceable parts inside. Contact support for battery replacement.

Regulatory Information

FCC Part 15: Class B digital device; complies with interference limits. UL 2743 certified for safety. Copyright © 2023 Dimax Group; Konner-Sohnen is a trademark of Dimax Group. For support, visit www.konner-sohnen.com or contact 1-800-555-ELECT (35328).

Troubleshooting

SymptomPossible CauseCorrective Action
Unit won't power onBattery depletedConnect to AC or solar charger; allow 10 mins before pressing POWER.
No output powerOutput switches offPress AC or DC output switch to ON; check LCD for enabled icons.
Overload shutdownConnected device exceeds 600WDisconnect devices; power on; reconnect lower-power devices first.
Solar not chargingPanel connection/insufficient sunCheck cable connection; ensure panel in direct sunlight; verify panel voltage (12-30V).
LCD display blankBacklight off/system sleepPress any button to wake; check SETTINGS for brightness level.
Fan runs continuouslyHigh ambient temperature/heavy loadMove to cooler location; reduce connected load; allow to cool.

Reset: Hold SETTINGS + POWER for 10 seconds to factory reset (clears settings only).

Service: 1-800-555-ELECT; www.konner-sohnen.com/support

Dimax Group Konner-Sohnen KS SP28W-4 Owner's Manual © - All Rights Reserved 2025