Portable batteries are essential to everyday life. They power devices we rely on daily, from remote controls and torches to smartphones, laptops, toys, and power tools. With a few practical habits, consumers can significantly extend battery life, both for standalone batteries and for batteries built into devices.

This article focuses on simple, actionable steps that make a real difference in everyday use.

General tips that apply to all portable batteries

1.    Use the correct battery for the job

Always use the battery type recommended by the manufacturer. Using a battery with insufficient capacity or the wrong chemistry can accelerate degradation and, in some cases, pose safety risks.

High-drain devices such as cameras, power tools, or gaming controllers require batteries designed to deliver higher currents. Using basic batteries in these devices often results in poor performance and early failure.

2.    Avoid extreme temperatures

Temperature has a substantial impact on battery health.

• High temperatures accelerate chemical ageing and can permanently reduce capacity.

• Very low temperatures temporarily reduce performance and, over time, can also cause damage.

Store and use batteries, as far as possible, at moderate temperatures. Avoid leaving devices or spare batteries in hot cars, near heat sources, or in direct sunlight.

3.    Do not mix old and new batteries

In devices that use more than one replaceable battery, always replace the whole set at the same time. Mixing old and new batteries forces the weaker battery to work harder, accelerating wear and increasing the risk of leakage.

4.    Remove batteries from unused devices

If a device will not be used for an extended period, remove the batteries if possible. This reduces slow discharge and lowers the risk of leakage, particularly for alkaline batteries.

5.    Extending the life of rechargeable batteries

Rechargeable batteries are designed for many charge cycles, but charging and usage habits strongly influence how long they last.

6.    Avoid full discharge whenever possible

Modern rechargeable batteries, especially lithium-ion batteries, last longer when they are not regularly drained to zero. Frequent deep discharges place additional stress on the battery.

In everyday use, it is generally better to recharge sooner rather than wait until the battery is completely drained.

7.    Do not keep devices permanently at 100 percent

Keeping a battery constantly at full charge, especially at elevated temperatures, accelerates ageing. When practical, unplug chargers once charging is complete.

Many devices now offer settings that limit charging to around 80 percent for daily use. Activating these features can noticeably extend battery lifespan over time.

8.    Use appropriate chargers

Always use chargers compatible with the device and its battery. Poor-quality or incompatible chargers can cause overheating, inefficient charging, and faster degradation.

Fast charging is convenient, but it can generate additional heat. When time allows, slower charging can be gentler on the battery.

9.    Manage charging habits

For smartphones, tablets, and laptops:

• avoid leaving devices plugged in overnight every day

• unplug once fully charged when practical

• avoid heavy use while charging, which increases heat

Minor adjustments to charging routines can slow capacity loss over time.

10. Protect devices from heat during use

Using devices under heavy load while they are hot increases battery stress. Examples include playing games in direct sunlight or placing laptops on soft surfaces that block airflow. Good airflow and moderate temperatures help preserve battery health.

Primary batteries still benefit from good habits

For non-rechargeable batteries, extending life means getting the most out of each battery safely.

• switch devices off entirely when not in use

• avoid leaving batteries in devices that draw standby power

• store spare batteries in a cool, dry place

These steps help maintain performance and reduce unnecessary replacements.

Safety and end-of-life still matter

Extending battery life does not mean using batteries beyond safe limits.

• do not use damaged or swollen batteries

• follow manufacturer instructions for use and charging

• when a battery no longer performs adequately, discard it through a dedicated collection point, not household waste

Proper disposal ensures valuable materials can be recovered and reduces environmental and safety risks.

Conclusion

Extending the life of portable batteries primarily comes down to everyday habits. Using the correct battery, avoiding heat, charging thoughtfully, and storing batteries correctly can all make a measurable difference. These simple actions help consumers get more value from their devices while supporting more efficient use of resources across the battery value chain.