How to Check for Electric Motorcycle Battery Issues and Solutions

Electric motorcycles are becoming increasingly popular for urban and rural transportation in Thailand. Lightweight electric motorcycles are particularly favored due to their energy efficiency and ease of use. However, the battery, which is the core component of an electric motorcycle, can sometimes develop issues that affect the bikes performance.

So, how can you tell if your battery has a problem? What should you do if an issue arises? And how do you choose the right lead-acid battery? This article will provide a detailed guide to help you understand these concerns.


1. How to Identify Battery Issues
Significantly Reduced Range

If your electric motorcycle can no longer travel as far as it used to after a full charge, this could indicate reduced battery capacity or internal battery issues.
Normally, lead-acid batteries lose capacity over time, but a sudden decline may be a sign of a serious problem.
Unusual Charging Time

Charging a lead-acid battery usually takes 6-8 hours.
If the charging time becomes excessively long or too short, the battery may have an internal issue, such as low acid levels or degraded electrodes.
Battery Overheating

If the battery becomes extremely hot while charging or in use, it may indicate a short circuit or internal degradation.
In this case, stop using the battery immediately and inspect it.
Battery Swelling or Acid Leaks

If the battery casing is swollen, deformed, or leaking fluid, it may indicate irreversible chemical reactions inside the battery, requiring immediate replacement.
Reduced Motor Power

If the motorcycle struggles to accelerate or climbs hills with difficulty, this could mean the battery can no longer provide sufficient power.

2. What to Do If Your Battery Has a Problem?
Immediate Inspection

If you suspect a battery issue, stop using the electric motorcycle immediately and perform a basic inspection.
If the issue is unclear, consult a professional technician for a thorough checkup.
Regular Battery Maintenance

Regularly check voltage, capacity, and acid levels in lead-acid batteries.
Clean the battery terminals to prevent oxidation and loose connections.
Battery Replacement

If your battery has been in use for 2-3 years and is showing multiple issues, consider replacing it.
If the battery swells or leaks, replace it immediately to prevent damage to the bike and ensure rider safety.
Safe Disposal of Old Batteries

Old lead-acid batteries contain hazardous chemicals and should not be discarded improperly.
Take your old battery to an authorized electric motorcycle shop for safe disposal and recycling.

3. How to Choose the Right Lead-Acid Battery
Correct Voltage & Capacity

Ensure that the battery voltage and capacity match your motorcycles specifications.
Lead-acid batteries commonly come in 48V, 60V, and 72V configurations with capacities of 12Ah, 15Ah, and 20Ah.
Reliable Brands & Quality

Choose a well-known battery brand for better quality and longevity.
Higher-quality batteries tend to have longer lifespans and better safety features.
Warranty Coverage

Always purchase batteries with a warranty to cover potential defects or early failure.
Durability & Vibration Resistance

Opt for batteries that can withstand vibration and varying weather conditions, including heat and rough roads.
Price & Value for Money

While lead-acid batteries are cheaper than lithium batteries, dont just choose the cheapest option.
Consider both performance and reliability to get the best long-term value.

By properly maintaining your battery and choosing the right replacement, you can extend the lifespan of your electric motorcycle and ensure a smooth, safe riding experience.