Batteries and Battery Accessories

Store rechargeable batteries in a cool, dry place between 10°C and 25°C (50°F and 77°F). This is because excessive heat can degrade battery cells and shorten their lifespan, whilst moisture can damage internal components.

Rechargable batteries should always be stored with a partial charge (usually around 40–60%) to prolong their lifespan. If batteries are stored on an empty charge it can lead to deep discharge and potentially, permanently damage the battery. We recommend checking batteries periodically if they are likely to be unused for months and recharge slightly if the level becomes low.

Common signs that the operator should lookout for, includes -

• Decreased performance. Rechargeable batteries that are suffering from decreased performance are likely to make the power tool shut-off unexpectedly during use, or may not supply the tool with enough power to make it useful.
• Longer charging times. If the battery is taking longer to fully charge than it used to, then it is likely the battery is reaching the end of its life. 
• Physical swelling, cracking and leakage from the battery. If the operator notices any damage to the battery, then it should be disposed of safely and replaced immediately for safety reasons.
• Unable to hold a charge. If the battery is fully charged but supplying power for shorter periods of time than it used to, then the battery cells may be wearing out. This is because rechargeable batteries gradually lose capacity after repeated charging cycles, with most lithium-ion batteries being able to handle around 300-500 full charge cycles, before the operator should start to notice a performance drop-off. 

Modern lithium-ion rechargeable batteries can last between 3-5 years of regular use, which can be between 300 - 500 full charge cycles before the operator will start to notice a decline in performance.

Several factors can affect this, such as the battery type, usage patterns and how well the battery is maintained. If the battery is stored in extreme temperatures then it will affect its longevity and ideally, it should be stored in a dry environment between 10°C and 25°C (50°F and 77°F).

If the battery is looked after then the operator shouldn't notice a steep decline in performance. Instead the decline should be slow and steady, with shorter runtimes, reduced power and increased charging times.