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FAQ / Frequently Asked Questions – Battery Chargers, Starter Motors and Generators
How do I know if I need a battery charger?
If the machine starts sluggishly, the battery often feels weak, or the machine sits unused for longer periods, it’s a clear sign that the battery isn’t receiving enough charge. A battery charger helps keep the battery healthy and ready.
What charging current (A) should I choose for my battery charger?
Larger tractors and construction machines have bigger batteries and often require a charger with higher amperage. A charger that is too weak will take a long time to charge a large battery – choose based on the battery size in your machine.
Should I choose a smart charger, maintenance charger or traditional charger?
Smart chargers are usually the best option. They monitor the battery’s condition and adjust the charge automatically, preventing overcharging. Maintenance chargers are ideal for machines that stand still for long periods. Traditional chargers work but often lack protective functions.
How do I know if the battery charger is compatible with my battery?
Most modern chargers work with AGM, gel and lead-acid batteries, but always check the specifications. The wrong charger can shorten battery life or charge inefficiently.
Can I leave the battery charger connected all the time?
Yes – if it’s a smart charger with a maintenance mode. It keeps the battery at optimal levels without overcharging and is perfect for machines used infrequently.
How long does it take to charge a machine battery?
It depends on the battery size and the charger’s amperage. A stronger charger reduces charging time significantly. Machine batteries can take anywhere from a few hours to more than a day with weaker chargers.
What are the signs that the starter motor is failing?
Clicking noises, uneven starting, slow rotation or no response at all. These problems often become more noticeable in cold weather when the starter motor must work harder.
How do I know which starter motor fits my machine?
Match the starter motor exactly to your machine model and engine type. The wrong model can cause overload or insufficient power. Olsson Parts offers machine-based filtering and compatibility support.
Is replacing the starter motor enough if the machine starts poorly?
Not always. The starter motor and battery work together – a weak battery affects even a new starter motor. Always check the entire electrical system, including wiring and charging.
How do I know if the generator isn’t charging properly?
Warning lights, dim lighting, malfunctioning electronics or recurring dead batteries are typical signs. Generators often lose capacity gradually.
What size generator do I need?
It depends on how much electrical equipment the machine has. Extra lighting, aftermarket systems and heavy-duty use require a generator with higher amperage. Always check that mounts and connectors match the engine series.
How can I avoid electrical problems in winter?
- Keep the battery fully charged with a smart charger
- Check wiring and grounding points
- Replace the starter motor at early warning signs
- Ensure the generator is charging properly
- Keep battery terminals clean and free from corrosion
A healthy battery, proper charging and a good starter motor provide maximum reliability.
Why should I buy my parts from Olsson Parts?
We offer a large stock, high-quality parts at good prices, and experts who know tractors, construction and forestry machines. We support you all the way – from choosing the right part to installation tips in our guides.
Do you have parts for my machine model?
Yes! Our range covers most tractors, wheel loaders, forestry machines and construction equipment on the Swedish market. You can search by machine model or contact us for help.
How quickly will I receive my parts?
We ship quickly from our large warehouse – if you order before 2 p.m. CET, your order is usually shipped the same day. Perfect when you need to get your machine running again fast.