Battery Maintenance Guide
A motorcycle battery is not a thrilling component. It sits quietly on your motorcycle, usually under the seat or behind a side panel.
It cannot compete with the thrilling sound of a motorcycle chain, it cannot show its wear and tear as easily as the motorcycle tyres, it cannot show signs of wear as obviously as old engine oil. It cannot provide that fresh look as your new exhaust and motorcycle jacket.
But the day it dies, your motorcycle is dead.
It refuses to start, the display is flickering, the lights are dim, the starter motor turns slowly or just does not respond – that is when a motorcycle owner usually remembers the battery.
However, checking the condition of the motorcycle battery should not be neglected as the battery is one of the most important parts of a motorcycle. This is especially important for premium motorcycles, touring motorcycles, superbikes and weekend bikes – which are driven less frequently – where battery checks are highly recommended.
This ultimate guide focuses on providing you with easy maintenance tips.
Why Battery Maintenance is Important
The battery is an essential part of your motorcycle’s electrical system. It supplies power for starting and supports the motorcycle's electrical system, including lights, display, fuel injection, sensors, ignition, ABS – and many other motorcycle components.
Older motorcycles will show a weak performance on cold starts with a failing battery, while the modern motorcycle might demonstrate unusual display behaviour, slow cranking, or an intermittent functioning of these components. Due to that, many owners suspect major electronics malfunctions – while in fact, the culprit is a weak battery.
As you can see, the importance of motorcycle battery maintenance cannot be overstated.
Motorcycle Battery Maintenance Guide Baycity Power Parts
Clean Terminals
A motorcycle battery terminal is small, but it is important. If the terminals are loose, dirty or corroded, the battery loses connection.
In some cases, the battery itself may be in good condition, but the poor connection prevents the motorcycle from starting due to the lack of electric current.
The terminals should be kept clean and tightened properly. In the case of white/green oxidation on the terminals, do not ignore the issue. Poor connection leads to all kinds of electrical problems, including poor starting performance.
Do Not Leave Your Motorcycle Sitting Unused for Long Periods of Time
Motorcycle batteries hate long weekends. Especially when it comes to premium motorcycles and superbikes – many owners leave their bikes at home, in the garage or even under a cover for days or weeks. They ride their motorcycles only on weekends and are surprised by their inability to start the bike for some reason. In fact, that situation is rather common.
When you leave your motorcycle unused for too long, the battery discharges, especially because of the constant power draw from the motorcycle alarm, GPS trackers and immobilisers (the last three are optional). That is why it is a good idea to limit the time your motorcycle spends unused with a battery tender for weekend bikes.
A battery tender helps to keep the battery charged at an appropriate level when the motorcycle is not in use. It should be compatible with the type of battery being used.
It is really important for the following types:
Weekend bikes
Superbikes
Touring motorcycles
Adventure motorcycles
Premium motorcycles
Motorcycles with a long parking period
A good battery tender can help prevent your battery from a deep discharge. Remember that battery tenders for AGM, GEL or lithium batteries have specific requirements.
Ride Your Motorcycle Periodically
A motorcycle battery benefits from regular use. Short starts are not ideal for the battery. Starting the motorcycle uses battery power, and a very short run may not give the charging system enough time to replace the energy used during starting.
It is more important to let the bike run long enough for the battery to receive the necessary power. Also, a traffic jam, when the lights are on, the fan is turned on, and other accessories are used, can be detrimental to the battery if the ride is too short. All things considered, a proper ride is better than a five-minute start, even if it seems insignificant.
Prevent Frequent Discharge of Your Battery
Deep discharge of the motorcycle battery is detrimental to its health. If the battery is almost dead or discharged, it may need some time to recover. Therefore, frequent deep discharge can lead to battery failure, even if you provide the battery with proper maintenance. One of the reasons why leaving the motorcycle unused is a bad idea is because of the discharge.
A discharged battery should not be a recurring problem. Check if any electrical accessories are wrongly installed in order to identify the cause of the frequent battery discharge. In addition, you should not blame the battery for the frequent discharge – check other potential causes.
Check Your Charging System
If battery discharge occurs frequently, your battery might not be to blame. The main reason for that is your motorcycle’s faulty charging system. The motorcycle charging system is rather complicated, which is why identifying the cause of the malfunction can be challenging.
The possible causes of repeated motorcycle battery discharge include the regulator, alternator, wiring issues and parasitic drain. These issues can affect the charging system, and professional help should be sought if the issue cannot be identified. Guessing can be expensive.
Understand Your Battery’s Needs
There are different types of batteries, including:
- AGM battery
- GEL battery
- Lithium battery
- Conventional motorcycle battery
The maintenance and charging recommendations vary depending on the battery type. That is why it is essential to identify the battery type. AGM batteries are commonly used in modern motorcycles and generally require less maintenance than conventional flooded batteries.
A GEL battery is also used in some motorcycles, but it is more sensitive to the charging process.
Lithium batteries are popular for performance-oriented motorcycles because they are lightweight, but they require chargers and charging practices that are compatible with lithium battery technology.
Keep Your Battery Area Dry and Secure
Your motorcycle battery should be secured so that it does not move around frequently. Otherwise, the constant vibration can affect the battery and its connections. The motorcycle battery should also have enough space, meaning battery cables and terminals should not be under strain.
Moreover, the area where the battery is placed must be kept dry and clean. The battery is often exposed to moisture, dirt, washing water and extreme temperatures. That is why the area should be inspected on a regular basis during your maintenance check.
Do Not Ignore Poor Starting Performance
Poor starting performance is usually one of the first battery-related symptoms. If the battery has issues supplying enough power to the starter motor, the starting process will be compromised. If you notice that your motorcycle has difficulty starting, check the battery.
Listen closely to the starter – if it sounds weak, investigate the problem. Check if the display behaves unusually when starting, if you hear any clicking noises – investigate the battery and charging system. Many owners tend to wait for the battery to be dead to address the issue, which is a mistake.
Battery Maintenance Before Long Rides
Always check the battery before a long ride.
Especially if the motorcycle was standing unused for some time, double-check the starting performance, battery connections, battery age, charging process and other potential issues. A motorcycle with a weak or unreliable battery may not be suitable for a long ride, so it is better to change it before hitting the road if testing confirms that the battery is failing. That rule is especially relevant for touring motorcycle owners.
How Long Do Motorcycle Batteries Last?
Many motorcycle batteries may last around 2-4 years. In some cases, the battery can last for five or more years, while in some situations, the battery can fail in less than two years. A number of factors affect the lifespan of a motorcycle battery, such as the battery type, the riding frequency, the weather, the charging system, the accessories and the maintenance process.
When Should I Replace My Battery?
It is a good idea to change the battery when testing or its condition indicates that it is nearing the end of its life.
Replace the battery if-
- The bike starts slowly
- The battery needs frequent charging
- The display flickers often
- Lights look weak
- The battery is old
- The battery case is swollen or damaged
- The terminals are badly corroded
- The bike has repeated starting trouble
Do not wait for the battery to become completely dead.
A dead battery is often inconvenient and can leave you stranded when you least expect it.
Common Battery Maintenance Mistakes to Avoid
Many riders make simple battery mistakes.
- Leaving the bike unused for weeks
- Using the wrong charger
- Ignoring loose terminals
- Adding accessories without checking the electrical load
- Charging repeatedly without finding the issue
- Ignoring early warning signs
- Buying the wrong battery size, specification or fitment
- Using cheap electrical parts
- Not checking the battery before long rides
These mistakes reduce battery life and create unnecessary starting problems.
Battery maintenance is not complicated.
It just needs attention.
Conclusion
A motorcycle battery is not exciting, but it is important.
Good battery maintenance can help avoid sudden starting problems, dead batteries and unnecessary replacement costs.
- Keep the terminals clean.
- Use the bike regularly.
- Use a battery tender if the motorcycle is parked for extended periods.
- Avoid poor-quality electrical accessories.
- Check the charging system when problems repeat.
- Do not ignore slow starting.
A little care can keep the motorcycle ready when you are.
For motorcycle batteries, battery tenders, chargers, AGM battery options, GEL batteries, lithium batteries and other motorcycle maintenance products, explore Baycity Powerparts.
