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FAQ: General Battery Issues
What is the "Memory Effect"?
Why are some laptop batteries so expensive?
Why are some laptop batteries so cheap?
When not using my notebook for long periods of time, should I leave the battery in the laptop?
What should I do if the battery gets hot in my notebook?
Can I store batteries in the refrigerator?
What is the difference between original and compatible batteries?
The colour of my new battery is different to the original, Is this a problem?
What is the "Memory Effect"?
The “memory effect” can be seen in Ni-Cad and NiMH batteries. It is caused by the user continually re-charging the battery before being it has fully discharged. The battery will eventually ‘forget’ the unused capacity. The way to avoid the "memory effect" is to fully charge and discharge the battery at least once every month. This will ensure the battery remains healthy. Li-Ion batteries do not suffer the memory effect.- TOP
Why are some laptop batteries so expensive?
Some batteries are specific to a manufacturer or laptop model, thus enabling the manufacturer to keep the price high. Batteries specific to one manufacturer or model will be made in lower volumes which will increase the production cost. In some cases the price of the original battery is kept high to motivate buyers to buy a new laptop.- TOP
Why are some laptop batteries so cheap?
Laptop batteries are often manufactured in very large volume production runs and as a result the cost saving is directly passed onto the end user.- TOP
When not using my notebook for long periods of time, should I leave the battery in the laptop?
It is not advisable to leave the battery in the laptop for extended periods of inactivity. Whilst in the laptop the battery will slowly discharge. If the battery is allowed to completely discharge the laptop may not recognise it when it is next booted up. DO NOT fully charge your battery prior storage. It should be charged to between 40 -50% of it’s capacity. During storage check the battery every 3-4 weeks to prevent total self discharge. If the battery is allowed to totally self-discharge the notebook may not recognise the battery when the laptop next is booted up.- TOP
What should I do if the battery gets hot in my notebook?
It is normal for the battery to become very warm to the touch during use. If it becomes too hot, take the battery out and let it cool down. If problem persists once it is inserted back into laptop the battery could be defective and may need to be replaced.- TOP
Can I store batteries in the refrigerator?
Yes, but the battery must be protected from moisture which will cause internal corrosion. It must be kept in an airtight container. This method of storage is only suitable when the battery needs to be stored for long periods without use. The low temperature slows down the rate of discharge. Once removed from the refrigerator, the battery must be allowed to warm up to room temperature before use. Storing the laptop battery in the freezer is not recommended.- TOP
What is the difference between original and compatible batteries?
Original batteries are manufactured by companies like IBM and Sony and also by an Original Equipment Manufacturer(OEM), who manufacture under licence from companies like IBM and Sony. Compatible batteries are solely made by 3rd party manufacturers. These products are not produced under licence and cannot be labelled or branded as Sony, IBM, Toshiba etc. The physical attributes are the same between the two types of batteries, but the labelling will be different.- TOP
The colour of my new battery is different to the original, Is this a problem?
No, as long as it is the right part and the ratings are correct. Different manufacturers use various materials and processes and as a result colour may vary.- TOP