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How can the service life of a lead-acid battery be extended in everyday use?

Release time:

2026-05-08 09:48

In addition to the charging precautions mentioned earlier, cultivating good operating habits during the daily use of lead-acid batteries is equally critical. Below are several key principles for extending the service life of lead-acid batteries:

Absolutely no storage with a discharged battery; if the device is left idle for an extended period, recharge it regularly.

This is the primary principle of lead-acid battery maintenance. If a battery is left uncharged for an extended period after use, the lead sulfate inside will crystallize—commonly referred to as “sulfation”—resulting in permanent capacity loss. When a vehicle or device remains idle for a long time, the battery must first be fully charged and then recharged every 1 to 2 months to prevent it from being completely discharged due to self-discharge and ultimately becoming unusable.

Avoid deep discharge; never let the battery drain completely.

Try not to let the battery’s charge drop all the way to zero. Lead-acid batteries are particularly vulnerable to deep discharge; frequently draining the battery to 0% can severely damage the battery plates. It’s best to recharge the battery as you use it—when the remaining charge is around 30% (or when the dashboard shows only one or two bars left), you should recharge promptly. Maintaining “shallow charging and shallow discharging” is the most effective way to extend the battery’s lifespan.

Refuse overloading and hard acceleration

High-current discharging is a major threat to battery life. During everyday riding or driving, try to avoid sudden braking and rapid acceleration (e.g., abruptly twisting the throttle). For electric bikes, it’s best to use pedal assist when starting off, carrying passengers, or climbing hills to reduce the battery’s instantaneous load. Overloading the bike can keep the battery in a high-current discharge state for extended periods, which easily leads to deformation or premature aging of the battery plates.

Ensure effective shock absorption and vibration protection to prevent damage from bumps.

Lead-acid batteries contain lead plates and active materials inside, making them sensitive to severe vibration. During daily use, it is important to maintain the vehicle’s suspension system and avoid driving at high speeds on rough, bumpy roads. Such severe vibrations can cause the active material on the internal lead plates to detach, leading to a reduction in battery capacity or even short-circuiting.

Develop a habit of regular check-ups.

Every so often, perform a quick visual inspection of the battery and its terminals. Look for any signs of bulging, cracking, or leakage on the battery case; check that the screws on the positive and negative terminals are securely tightened and that no white oxide powder has accumulated. If you notice oxidation, rinse the affected areas with boiling water, dry them thoroughly, and then apply a small amount of petroleum jelly or grease to prevent further oxidation and ensure good electrical contact.

Keep dry and away from moisture.

Although the battery casing is sealed, water ingress at the terminals and vent holes can lead to short circuits or accelerated self-discharge. When riding in the rain or washing the vehicle, try to avoid direct water spray on the battery area.

In summary, the key to maintaining a lead-acid battery is to avoid letting it “starve” (deep discharge), “overwork” (overloading or deep discharge), and “take a hit” (subjecting it to severe vibration or impact). By paying close attention during everyday use, you can maximize its performance and extend its service life.

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