To retrofit a NOCO charger with a temperature probe, you need to connect a compatible temperature sensor to the charger’s temperature input port or wire it inline with the battery leads, depending on your charger model.
This upgrade allows the charger to monitor the battery temperature and adjust charging parameters accordingly, preventing overheating and extending battery life. Many NOCO chargers have an optional temperature sensor port, but if yours doesn’t, you can still install an external probe with some basic wiring knowledge.
Retrofitting your NOCO charger with a temperature probe is a smart move for anyone using batteries in extreme temperatures or in sensitive applications. It helps maintain optimal charging efficiency and safeguards your battery from damage caused by temperature fluctuations.
Best Temperature Probes for Retrofitting a NOCO Charger
Here are three top temperature probes you can consider for retrofitting your NOCO charger, along with related products that complement the upgrade:
NOCO Genius Temperature Sensor (GTS1)
Specifically designed by NOCO, this sensor seamlessly integrates with compatible NOCO chargers. It provides accurate temperature readings, ensuring your charger adjusts correctly for safe battery charging.
KTY83-122 Temperature Sensor
A widely used thermistor sensor with good compatibility for DIY retrofits. It offers reliable temperature feedback at an affordable price and can be wired easily to various charging systems.
Honeywell 192-100LET-A01 Temperature Probe
Known for industrial-grade precision, this probe is a great choice if you want durability and accuracy in harsher environments. It pairs well with chargers that accept external probes.
NOCO Charger’s Compatibility with Temperature Probes
Before you start retrofitting your NOCO charger with a temperature probe, it’s crucial to understand whether your charger supports this feature and how it works. Not all NOCO chargers are designed with temperature sensor inputs, so knowing your charger’s capabilities will save you time and effort.
Key points to check:
Charger Model Compatibility
Most modern NOCO Genius chargers (like the Genius G3500, G7200) come with a dedicated temperature sensor port. Check your charger’s manual or specifications to confirm if it includes this feature.
Temperature Sensor Port Type
NOCO chargers that support temperature probes usually have a specific 2-pin connector labeled “TEMP” or “SENSOR.” If your charger lacks this port, retrofitting may require more complex wiring or using aftermarket controllers.
Firmware and Charging Algorithm
Chargers with temperature probe support automatically adjust the charging voltage based on the battery temperature, preventing overheating or undercharging. If your charger doesn’t have this, adding a probe won’t have any effect without additional hardware.
Battery Type Compatibility
NOCO chargers work with various battery chemistries (lead-acid, AGM, lithium). Ensure the temperature probe is compatible with the battery type and charger settings to maintain safe charging profiles.
Power Source and Wiring
The temperature probe is usually wired in parallel with the battery leads or plugged into the dedicated port, depending on the charger design. It’s important to follow manufacturer wiring diagrams to avoid damage.
Why this matters
Using a temperature probe that’s compatible ensures your charger will respond accurately to temperature changes. This reduces battery wear and improves safety, especially in environments with extreme temperatures.
How to Choose the Right Temperature Probe for Your NOCO Charger
Selecting the right temperature probe is essential for ensuring your NOCO charger can accurately monitor battery temperature and adjust charging accordingly. With several options available, making an informed choice will save you from compatibility issues and potential battery damage.
Consider these factors when choosing a temperature probe:
Compatibility with Your Charger Model
Not all temperature probes work with every NOCO charger. The safest bet is to use the official NOCO Genius Temperature Sensor (GTS1), designed specifically for NOCO chargers. If you choose a third-party probe, verify it matches your charger’s temperature input specifications.
Sensor Type
Most NOCO chargers use thermistor-based probes that change resistance with temperature. Ensure the probe you pick is a thermistor type compatible with your charger’s sensor input.
Operating Temperature Range
Look for a probe that covers the temperature range your batteries will encounter. For example, marine or automotive batteries may face extreme heat or cold, so pick probes rated for at least -40°C to +85°C (-40°F to +185°F).
Cable Length and Durability
Choose a probe with sufficient cable length to reach your battery comfortably without strain. If your application exposes the sensor to harsh environments (water, chemicals, vibration), select a probe with rugged, waterproof housing.
Connector Type
The probe connector should match your charger’s input port. NOCO’s official sensors usually have a 2-pin plug; if using aftermarket probes, you may need adapters or to splice wires carefully.
Cost and Warranty
While OEM probes cost more, they often come with better quality assurance and warranty. Budget probes may be tempting but can risk inaccurate readings and charger malfunction.
Step-by-Step Guide to Installing the Temperature Probe
Retrofitting your NOCO charger with a temperature probe can seem intimidating, but breaking it down into simple steps makes the process manageable—even for beginners. Follow this guide carefully to ensure a safe and effective installation.
Step 1: Gather Your Tools and Materials
Before starting, make sure you have:
- Compatible temperature probe (e.g., NOCO Genius Temperature Sensor GTS1)
- Wire cutters/strippers
- Electrical tape or heat shrink tubing
- Multimeter (optional, for testing)
- Screwdrivers or other tools as needed for your charger’s housing
- Safety gloves and glasses
Step 2: Power Down the Charger and Disconnect Battery
For safety, unplug the charger from the power source and disconnect the battery terminals to avoid any electrical shock or short circuits during installation.
Step 3: Locate the Temperature Sensor Port on Your NOCO Charger
Check your charger for a labeled “TEMP” or “SENSOR” port. This is often a small 2-pin connector on the side or rear of the unit. If your charger has this port, installation is straightforward.
Step 4: Connect the Temperature Probe to the Charger
- Plug the temperature probe’s connector directly into the sensor port.
- If your charger doesn’t have a sensor port, you’ll need to wire the probe inline with the battery leads—consult your charger’s manual or wiring diagram for exact instructions.
- Ensure the connection is secure and insulated.
Step 5: Route the Probe Cable to the Battery
Run the probe wire carefully from the charger to the battery. Avoid sharp edges, moving parts, or hot surfaces that could damage the cable. Use zip ties or clips to keep it neat and secure.
Step 6: Attach the Probe to the Battery
Place the temperature probe in contact with the battery case, ideally near the terminals where heat tends to build up. Use tape or a mounting bracket to secure it firmly, ensuring good thermal contact.
Step 7: Reconnect the Battery and Power On the Charger
Reconnect your battery terminals, plug the charger back in, and power it on. Your NOCO charger should now recognize the temperature probe and adjust charging accordingly.
Step 8: Test the Installation (Optional but Recommended)
Use a multimeter to verify the sensor resistance changes with temperature or observe charger behavior in different conditions. Refer to your charger’s manual for specific testing guidelines.
Testing and Calibrating the Temperature Probe After Installation
After installing the temperature probe on your NOCO charger, it’s important to test and calibrate the setup to ensure it’s functioning correctly. Proper calibration guarantees your charger accurately adjusts charging based on real-time battery temperature, protecting your battery’s health and optimizing performance.
Why Testing and Calibration Matter
A poorly calibrated or malfunctioning temperature probe can cause your charger to overcharge or undercharge the battery, reducing battery life or even causing damage. Confirming proper operation ensures your retrofit investment pays off in better battery longevity.
Step 1: Visual Inspection
- Double-check all connections to ensure the probe is plugged in securely and wiring is insulated.
- Verify the probe is firmly attached to the battery case and making good thermal contact.
Step 2: Use a Multimeter to Check Sensor Resistance
- Set your multimeter to measure resistance (ohms).
- Measure the resistance across the probe’s leads. At room temperature (~20°C or 68°F), typical thermistor probes show a specific resistance (refer to your probe’s datasheet).
- Warm the probe slightly (e.g., hold it in your hand or use a heat source) and observe the resistance drop or rise, indicating the sensor responds to temperature changes.
Step 3: Monitor Charger Behavior
- Power on the NOCO charger and observe charging status indicators.
- If your charger’s manual provides diagnostic steps for temperature sensing, follow them to verify the charger recognizes the sensor input.
Step 4: Calibration (If Supported)
- Some advanced NOCO chargers allow manual calibration or adjustment of temperature sensor readings via software or buttons. Consult your user manual.
- If calibration is available, follow instructions to fine-tune readings for your specific environment or battery type.
Step 5: Field Testing
- Test the system under real conditions (e.g., during battery charging in warm or cold environments).
- Confirm the charger adjusts charging voltage as expected when battery temperature changes.
Tips for Reliable Testing:
- Avoid exposing the sensor to sudden temperature shocks that could damage it.
- Keep the sensor clean and free of corrosion.
- Replace the sensor if readings seem erratic or inconsistent.
Tips for Maintaining Your Retrofitted NOCO Charger
Once your NOCO charger is successfully retrofitted with a temperature probe, maintaining both the charger and the sensor is key to ensuring long-term reliable performance and battery safety. Here are practical tips to keep everything in top shape.
Regularly Inspect the Temperature Probe and Wiring
- Check the probe for any signs of wear, cracks, or corrosion.
- Inspect the wiring for frays, kinks, or loose connections.
- Secure any loose cables to prevent accidental damage.
Keep the Probe Clean and Properly Mounted
- Dirt, oil, or battery acid residue can affect temperature readings. Wipe the probe and battery surface gently with a damp cloth.
- Ensure the probe stays firmly attached to the battery case for accurate temperature detection.
Avoid Exposure to Extreme Conditions
- Although temperature probes are designed to withstand harsh environments, try to shield them from excessive moisture, direct heat sources, or mechanical impacts that may degrade the sensor.
Periodically Test the Sensor Functionality
- Perform resistance checks with a multimeter occasionally to confirm the probe is responsive.
- Monitor charger behavior during normal operation for any unusual charging patterns that could indicate sensor issues.
Update Firmware When Available
- NOCO occasionally releases firmware updates for their chargers that can improve temperature sensor handling and overall charging efficiency.
- Follow NOCO’s official instructions to keep your charger software current.
Replace Faulty Sensors Promptly
- If you notice inconsistent temperature readings or charging anomalies, consider replacing the temperature probe with an OEM sensor to avoid battery damage.
Conclusion
Retrofitting your NOCO charger with a temperature probe is a smart upgrade that helps protect your battery by ensuring the charger adjusts its output based on real-time temperature readings.
By choosing a compatible temperature probe, following a careful installation process, and testing for proper calibration, you can extend your battery’s life and improve charging safety. Regular maintenance of both the charger and sensor keeps your setup running smoothly, giving you peace of mind during every charge cycle.
If you’re ready to enhance your charging system, start with the official NOCO Genius Temperature Sensor (GTS1) for seamless compatibility. Remember, accurate temperature sensing is essential for preventing battery overheating and maximizing performance.
Frequently Asked Questions About Retrofitting a NOCO Charger with a Temperature Probe
Why is a temperature probe important for my NOCO charger?
A temperature probe allows the NOCO charger to monitor your battery’s temperature in real-time. This helps the charger adjust its charging voltage and current to prevent overheating, overcharging, or undercharging—extending your battery’s lifespan and improving safety.
Can I use any temperature probe with my NOCO charger?
Not all temperature probes are compatible. It’s best to use the official NOCO Genius Temperature Sensor (GTS1) to ensure proper communication and accurate readings. If using third-party probes, verify they match your charger’s sensor specifications and connector type.
What if my NOCO charger doesn’t have a temperature sensor port?
Some older or basic NOCO charger models lack a dedicated temperature sensor input. In these cases, retrofitting a temperature probe may require additional wiring modifications or may not be supported. Check your charger’s manual or contact NOCO support for compatibility information.
How do I know if my temperature probe is working correctly?
You can test the probe’s resistance with a multimeter to see if it changes with temperature fluctuations. Additionally, observe your charger’s behavior—if it adjusts charging parameters in response to temperature changes, the sensor is likely functioning properly.
Is installing a temperature probe difficult?
Installation is generally straightforward if your NOCO charger has a dedicated sensor port. It involves plugging in the probe and securing it to the battery. For models without a sensor port, installation can be more complex and may require technical know-how.
Can I calibrate the temperature probe?
Some advanced NOCO chargers offer calibration options through their settings or software. Refer to your user manual for specific instructions. Most users won’t need to calibrate manually if using the official temperature sensor.
How often should I replace the temperature probe?
Temperature probes typically last for many years if maintained properly. Replace the probe if you notice inconsistent readings, physical damage, or charging irregularities.