Are you grappling with a dead Sumec generator battery problem or a generator cranking but not starting during a power outage?
Sumec generators come with sealed lead-acid batteries for electric/remote start, with battery sizes ranging from compact for smaller inverters to larger for higher-wattage models.
The two most common culprits behind a Sumec generator battery issue are a defective voltage regulator or a malfunctioning alternator, preventing proper charging.
The purpose of this guide is to assist you in identifying the root cause of your generator battery problem, gathering the required materials, removing the old battery, installing a new one, and troubleshooting if needed.
Whether you’re facing a dead battery, power outage, or generator cranking but not starting an issue, this guide has you covered.
Identifying the Problem
There could be several reasons behind your Sumec generator battery problem. Here are some common issues to identify:
Battery Drainage
- If the generator has not been used for an extended period, such as two years, the battery may have drained completely, making it difficult to start the generator.
- Even after charging, the issue could be with the battery charging rectifier or the alternator if the battery keeps dying.
Engine Failure
In the event of a failed engine start, it is recommended to inspect the following components:
- Fuel level
- Choke lever position
- Fuel valve
- Spark plug condition
Power Supply Issues
If there is no power supply after starting the generator, inspect:
- A.C. circuit breaker
- Terminal connections
- Alternator brush condition
Deeper Diagnosis
The two most probable causes for generator battery problemare:
- Defective Voltage Regulator: If the voltage regulator is not sending the proper voltage from the alternator to the battery, the battery will drain quickly. Replacing the voltage regulator can solve this issue.
- Malfunctioning Alternator: A faulty alternator can prevent the proper voltage from reaching the battery. To check for continuity, a multimeter can be utilized in order to test the alternator. If it tests negative, the alternator needs to be replaced.
If the generator still has issues after checking these components, contacting the nearest authorized dealer for professional support is recommended.
Gathering Required Materials
To replace the dead battery in your Sumec generator, you’ll need to gather the following materials:
1. Replacement Battery: The recommended replacement is a Firman 12V 15AH Battery, available for ₦58,500.00 (regular price ₦68,000.00) with six units in stock. This is a 12V sealed lead-acid battery, which is the typical size for this generator model.
2. Tools:
- Phillips or cross-head screwdriver to remove the battery terminals
- In order to remove the battery, a 10mm wrench or socket would be necessary
- Battery charger to charge the dead battery (if you plan to reuse it)
3. Additional Items:
- Plastic caps to cover the battery terminals after installation
- Continuous charging circuit (optional) – Connect the replacement battery to a constant charging circuit if you use the generator intermittently. This involves a 12V charger that provides 13.8V output and at least 1.5A of continuous current to keep the battery charged.
While Firman offers other battery products like 12V 7.5AH, Li-ion 0.8AH, Li-ion 1.6AH, Gel 12-200AH, and ZERO F Inverter Lithium 15kwh, the 12V 15AH sealed lead-acid battery is the recommended choice for this generator battery problem.
It’s important to note that Firman provides a 7-day money-back guarantee, and their products are tamper-proof and directly from the Sumec Firman factory.
Removing the Old Battery
When removing the old battery from your Sumec generator, following proper safety protocols is crucial to avoid potential hazards. Here are the steps to take:
Disconnecting the Battery
- Find the battery and distinguish between the positive terminal (colored red) and the negative terminal (colored black).
- Begin by loosening the bolt or nut that secures the cable to disconnect the negative (-) terminal first. This step prevents accidental arcing or sparks that could cause injury or damage.
- Once the negative terminal is disconnected, remove the positive (+) terminal cable.
Accessing the Battery
The process of accessing the battery varies depending on the generator model. For open-frame generators, the battery is typically easily accessible and can be removed by unfastening a strap or bracket. However, for inverter generators, you may need to remove side panels or other components to access the battery compartment.
- Open-Frame Generators: Locate the battery, usually situated near the engine. Unfasten the strap or bracket, secure the battery, and carefully lift it out.
- Inverter Generators: Follow the manufacturer’s instructions to remove the necessary panels or covers. This may involve removing bolts, screws, or other fasteners to access the battery compartment.
Handling the Old Battery
- Once the battery is exposed and the terminals are disconnected, carefully lift it from the generator.
- Handle the old battery cautiously, as it may contain corrosive acid or hazardous materials.
- In compliance with local regulations or recycling guidelines, it is imperative to appropriately dispose of the used battery.
Remember, safety should be your top priority when working with batteries. Wear protective gear, such as gloves and eye protection, and work in a well-ventilated area.
If you encounter any difficulties or have concerns, consult the manufacturer’s instructions or seek professional assistance.
Installing the New Battery
To install the new battery in your Sumec generator, follow these steps:
1. Connect the Terminals Properly
- Locate the new battery’s positive (red) and negative (black) terminals.
- In order to successfully complete the wiring process, it is imperative to attach the red wire to the positive (+) terminal while simultaneously attaching the black wire to the negative (-) terminal.
- Tighten the terminals securely to ensure a proper connection.
2. Secure the Battery
- Carefully lift the new battery into the designated battery compartment or tray.
- Secure the battery using the provided bracket, strap, or fasteners to prevent movement during operation.
3. Additional Battery Setup (Optional)
- For extended battery life or frequent generator use, consider installing an additional 12V battery with a higher capacity, such as an 18Ah or 17Ah battery.
- Connect the additional battery to the generator terminals.
- A 12V charger that provides 13.8V and at least 1.5A of current keeps the batteries charged continuously.
- Ensure the charger has overcurrent protection to prevent damage during generator startup.
|
Battery Type |
Recommended Capacity |
|---|---|
|
Primary |
12V, 9Ah – 15Ah |
|
Additional |
18Ah or 17Ah |
Remember to charge the new battery slowly, as small engine batteries may not respond well to quick charging. A trickle charge for 6-8 hours is recommended before use.
Testing and Troubleshooting
Before starting the generator, ensure the AC circuit breaker is in the ‘off’ position. After starting, allow the engine to warm up for a few minutes before turning on the AC circuit breaker to supply power.
If the battery has been sitting for a long time (2 years), you must charge it using a battery charger. Slow/trickle charging is recommended for small engine batteries.
After charging the battery, reconnect the positive (red) wire first, then the negative (black) wire. Ensure the connections are hand-tight to avoid cross-threading the threads. Replace any plastic caps on the battery terminals to keep them protected.
Troubleshooting Steps
If the battery keeps dying even after being charged, the issue may be with the battery charging rectifier, which should be checked. To tackle common issues, implement these troubleshooting steps and find solutions:
1. Starting Issues:
- Top up fuel if required
- Check and change the oil
- Ensure the choke is in the correct position
- Replace a faulty battery
- Clean air filters
- Clean the carburetor
- Clean carbon deposits on the spark plug
2. Tripping Off:
- Avoid overloading
- Monitor oil level and change it as needed
- Have a technician check and adequately connect the wiring
3. Poor Fuel Efficiency:
- Avoid overloading
- Keep the generator environment clean to prevent air filter blockage
- Have the carburetor checked and fixed by a technician
- Remember to open the choke after the generator stabilizes
4. Power Output Issues:
- Have the AVR, brush, and coil checked and replaced if necessary
- Have the wiring connections checked and fixed by a technician
- Replace or fix the change-over switch
5. Valve Adjustment:
- Have a technician adjust the valve back to its initial position
6. Battery Drainage:
- Always turn off the ignition key when not in use
- Check the battery production date and replace old batteries
Regular maintenance checks are also recommended, including weekly, monthly, and annual inspections to monitor fluid levels, clean components, change filters, and test the generator under load.
Conclusion
Dealing with a Sumec generator battery problem can be frustrating, especially during a power outage. By adhering to the guidelines presented within this article, one can achieve success, you can easily identify the root cause, gather the necessary materials, and replace the faulty battery.
It is essential to prioritize safety at every step of the process and consider installing additional batteries or a continuous charging circuit for extended use.
While troubleshooting may be required in some cases, regular maintenance and timely replacements can prevent many common issues.
By keeping your Sumec generator in optimal condition, you can ensure reliable power backup during emergencies and enjoy peace of mind knowing your investment is well-protected.
FAQs
1. What steps should I take if my generator fails to generate power?
To address a generator that won’t generate power, inspect the battery to see if it needs charging or replacing. Next, examine the recoil starter, which helps engage the crankshaft and start the engine. Additionally, check the flywheel and the fuel filter for any issues preventing the generator from operating correctly.
2. What should I do if my generator isn’t supplying current?
First, inspect the output cable for any signs of wear or disconnection. Ensure all connections to the output cable are secure and not loose. If you find any damage to the cable connector, it’s crucial to replace it immediately to restore proper function.
3. How can I test the battery of my generator?
Testing a generator’s battery typically involves a manual process. This includes a visual inspection of the battery’s electrolyte levels and using a hydrometer to measure the specific gravity of the battery. This test helps determine the health and functionality of the battery.
4. How can I maintain the charge of my generator’s battery?
To keep your generator’s battery charged, especially if you do not use the generator regularly, consider using an external charger. This will ensure the battery remains charged and ready for use when needed.