Rentech Jaguar 1.2K - User Manual

Questions and Answers

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Robert ZimmermanAug 13, 2025
What to do if my Rentech Inverter buzzer beeps continuously and the red LED is on?
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  brian62Aug 13, 2025
  If your Rentech Inverter beeps continuously and the red LED is on, it could be due to several reasons. First, check if the wiring is properly connected and remove any unusual load that might be causing a short circuit. Another possible cause is an overload error, which occurs when the inverter is overloaded (over 110%) for too long; try reducing the connected load by turning off some equipment. In case of high output voltage or fan fault, you should return the unit to the repair center or replace the fan.
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Christopher CastilloAug 17, 2025
Why is my Rentech Jaguar 1.2K working in battery mode when mains exist?
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  wgoodwinAug 17, 2025
  If your Rentech Inverter works in battery mode even when mains power is available, it could be due to a tripped input protector. Check if the AC breaker has tripped and ensure the AC wiring is securely connected. Another possibility is insufficient quality of AC power, especially if you're using shore power or a generator. In this case, check if the AC wires are too thin or too long. Also, if you're using a generator, make sure it's working correctly and that the input voltage range setting (Narrow/Wide) is appropriate.
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William BowersAug 20, 2025
How to extend backup time of Rentech Inverter?
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  paul22Aug 21, 2025
  If the backup time of your Rentech Inverter is shorter than expected when power fails, it could be due to low battery voltage. Charge the unit for at least 8 hours. If the battery capacity is still not full after charging for at least 8 hours, check the date code of the battery. If the batteries are too old, consider replacing them.
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whernandezAug 25, 2025
What to do if there is no LED display on Rentech Jaguar 1.2K Inverter?
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  Charles BestAug 25, 2025
  If there is no LED display on the front panel of your Rentech Inverter when the utility power is normal, it could be due to a poor battery connection. Check the external battery cable and terminal, making sure all battery connections to the unit are correct. Another potential cause is a defective battery, in which case you should replace the batteries.
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qmartinezAug 28, 2025
What to do if Rentech Inverter buzzer beeps continuously and red LED is on?
- C
  Craig GomezAug 28, 2025
  If the buzzer beeps continuously and the red LED is on, it could be due to several reasons: * The output may be short-circuited: Check the wiring and remove any abnormal loads. * The inverter may be overloaded: Reduce the connected load by switching off some equipment. * The output voltage may be too high: Return the unit to a repair center. * There may be a fan fault: Replace the fan. * The internal temperature of the inverter component may be over 100°C: Check if the unit's airflow is blocked or if the ambient temperature is too high. * The battery may be over-charged: Return to a repair center. * The battery voltage may be too high: Check if the battery specifications and quantity meet the requirements.
K
Kimberly YoungSep 1, 2025
Why Rentech Inverter works in battery mode when mains exist?
- D
  denisemcgeeSep 1, 2025
  If your Rentech Inverter is operating in battery mode even when mains power is available, it could be due to the following reasons: * The input protector may be tripped: Check if the AC breaker is tripped and ensure the AC wiring is properly connected. * The AC power quality may be insufficient (e.g., from shore power or a generator): 1. Check if the AC wires are too thin or too long. 2. If using a generator, verify it's working correctly and that the input voltage range setting is correct (Narrow/Wide).
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Andrew SmithSep 4, 2025
How to fix shorten backup time when power fails with Rentech Jaguar 1.2K?
- D
  Darlene MoranSep 4, 2025
  If the backup time of your Rentech Inverter is shorter than expected during a power failure: * The battery voltage might be too low: Charge the unit for at least 8 hours. * The battery capacity might not be full even after charging for at least 8 hours: Check the battery's date code. If the batteries are too old, replace them.
S
sheltonmichealSep 8, 2025
What to do if there is no LED display on Rentech Jaguar 1.2K when the utility power is normal?
- D
  Dylan DavidsonSep 8, 2025
  If there is no LED display on the front panel of your Rentech Inverter when the utility power is normal: * The battery may not be connected properly: Check the external battery cable and terminal, ensuring all battery connections to the unit are correct. * The battery may be defective: Replace the batteries.

This document is a user manual for the Rentech Jaguar Battery Box, an inverter designed to power home appliances and 3C electronics. It is capable of handling motor-type loads with high surge power. The manual provides detailed instructions for installation, operation, troubleshooting, and specifications for two models: 1.2kVA/900W and 2.4kVA/1600W.

Function Description

The Rentech Jaguar Battery Box functions as an inverter, converting DC power from its internal batteries into AC power for connected devices. It operates in both line mode (when utility power is available) and inverter mode (when running on battery power). In line mode, it provides output power from the mains and simultaneously charges the internal battery. In inverter mode, it supplies power directly from the battery. The unit is designed for indoor use and automatically charges its internal battery when plugged into a wall outlet, even if the unit is off.

Important Technical Specifications

The Jaguar Battery Box comes in two models with distinct specifications:

1.2K Model (1200VA/900W)

Input:
- Voltage: 220-240 VAC
- Voltage Range: 90-280 VAC
- Nominal Operating Frequency: 50/60Hz
- Maximum Input Current: 10A
Output:
- Nominal Output Voltage: 220-240 VAC
- Voltage Regulation (Batt. Mode): +/-10%
- Output Frequency Range: 50/60Hz
- Nominal Output Current: 5.2A
- Inrush Current: 10A
- Maximum Output Fault Current: 6.9A
- Transfer Time: 20 ms typical
- Waveform: Simulated Sine Wave
Battery:
- Battery Type and Numbers: 12 V 100Ah x 1
- Maximum Battery Discharging Current: 76A
- Floating Charge Voltage: 13.7 VDC ±0.5 VDC
- Maximum AC Charging Current: 10 A or 20 A
Physical:
- Dimension (DxWxH): 393250459 mm
- Net Weight: 40.5 kgs
- Protective Class: I
- Ingress Protection Rating: IP20
Environment:
- Humidity: 0 ~ 90% RH (No condensing)
- Operating Temperature: 0 to 55°C
- Altitude: 0 ~ 1000 m

2.4K Model (2400VA/1600W)

Input:
- Voltage: 220-240 VAC
- Voltage Range: 90-280 VAC
- Nominal Operating Frequency: 50/60Hz
- Maximum Input Current: 13A
Output:
- Nominal Output Voltage: 220-240 VAC
- Voltage Regulation (Batt. Mode): +/-10%
- Output Frequency Range: 50/60Hz
- Nominal Output Current: 10.4A
- Inrush Current: 13A
- Maximum Output Fault Current: 13.6A
- Transfer Time: 20 ms typical
- Waveform: Simulated Sine Wave
Battery:
- Battery Type and Numbers: 12 V 100Ah x 2
- Maximum Battery Discharging Current: 76A
- Floating Charge Voltage: 27.4 VDC ±1 VDC
- Maximum AC Charging Current: 10 A or 20 A
Physical:
- Dimension (DxWxH): 345400450 mm
- Net Weight: 75.8 kgs
- Protective Class: I
- Ingress Protection Rating: IP20
Environment:
- Humidity: 0 ~ 90% RH (No condensing)
- Operating Temperature: 0 to 55°C
- Altitude: 0 ~ 1000 m

Usage Features

The Jaguar Battery Box is designed for user-friendly operation with several key features:

Power On/Off: A simple power switch controls the unit. Once installed, pressing the switch turns the unit on, and it automatically operates in line or inverter mode based on utility power status. Pressing it again turns the unit off.
LCD Display: A comprehensive LCD provides real-time information including:
- Input source information (AC input, input voltage, battery voltage).
- Configuration programs and fault information (setting programs, warning and fault codes).
- Output information (output voltage, load percentage, load in Watt, main board firmware version).
- Battery information (battery level, charging status, battery capacity).
- Load information (overload indication, load level by percentage).
LED Indicators: Three LEDs on the front panel provide quick status updates:
- AC/INV (Green): Solid On for bypass mode, Flashing for inverter mode.
- CHG (Green): Solid On when battery is not charging, Flashing when battery is charging.
- FAULT (Red): Solid On for fault mode, Flashing for battery low or overload warning.
Audible Alarms: The unit provides audible alerts for various conditions:
- Inverter Mode (Low-battery Voltage): Buzzing every 1 second.
- 110% overload warning: Buzzing every 0.5 second.
- Overcharge: Buzzing continuously.
- Fault mode: Buzzing continuously.
Function Buttons:
- ESC: Exits setting mode.
- SELECT: Navigates to the next selection in setting mode.
- ENTER: Confirms selection or enters setting mode (by pressing and holding for 3 seconds).
Configurable Settings: Users can customize various parameters through the LCD setting mode:
- AC input voltage range (Wide/Narrow).
- Battery type (AGM/Flooded/User-defined).
- Max AC charging current (10A/20A).
- Bulk charging (C.V voltage) voltage.
- Floating charging voltage.
- Low DC cut-off voltage.
Battery Pack Installation: The manual provides clear, step-by-step instructions with diagrams for connecting the internal battery pack for both 1.2k and 2.4k models, involving removal and reassembly of the top case.

Maintenance Features

The manual emphasizes safety and provides guidance for troubleshooting common issues:

Safety Warnings: Crucial safety precautions are highlighted throughout the manual, including:
- Indoor use only; avoid exposure to rain, snow, or liquids.
- Use only qualified batteries.
- Disconnect AC, DC, and battery power before maintenance.
- Do not disassemble the inverter; it contains no user-serviceable parts.
- Ensure proper wiring and ventilation.
- Avoid covering cooling fans.
- Use insulated tools when working with batteries.
- Remove personal metal items when working with batteries.
- Have fresh water and soap available in case of battery acid contact.
- Never smoke or allow sparks/flames near batteries.
- Disable automatic generator start systems during servicing.
Troubleshooting Guide: A detailed table helps users diagnose and resolve minor problems based on symptoms (e.g., short backup time, unit working in battery mode despite mains, no LED display, continuous buzzer, red LED on). It lists potential causes and recommended actions, such as:
- Charging the unit for at least 8 hours.
- Checking battery date codes and replacing old batteries.
- Verifying AC breaker and wiring.
- Checking AC wire thickness and length.
- Ensuring proper generator function (if applicable).
- Checking external battery cable and terminal connections.
- Replacing defective batteries.
- Removing abnormal loads.
- Reducing connected load.
- Replacing the fan.
- Checking for blocked airflow or high ambient temperature.
- Verifying battery specifications and quantity.
Professional Service: For abnormal situations not listed in the troubleshooting guide, users are instructed to contact service personnel for professional examination.
Warranty: Attempting to service the inverter yourself will void the manufacturer's warranty.