Thanks do you think the chinese dell cheap ones might be a bit dodgy?Do you think they have a shelf life is somebody has had them knocking around in a warehouse for years?I would try a search for 'Dell Latitude E7240 battery' on Ebay.co.uk to get an idea of prices.
Personally I go for the cheapest I can find here in the UK.
Do you happen to know what the best way to keep a battery in good condition for the longest time,for example how far should it be discharged before recharging etcI've always got batteries from sellers in the UK because delivery from China can take a few weeks. I think batteries made in China are fine though. Most of the 'genuine' batteries are also made in China.
Thanks for that,that sounds like good adviceI think the best advise is to only charge the battery when it's charge gets low enough to really need it and to remove the battery if it's fully charged already and you will use the laptop for a long time with the charger plugged in.
Also if you don't need the battery for long periods, like several days, charge it to about 40% and then remove it and store it in a cool place.
Heat tends to reduce the battery's useful life and it can get quite warm when it's in the running laptop. And a battery will only work for a certain number of charge/discharge cycles so charging it as few times as possible seems a good idea.
The above is what I have read online and seems to make sense although you may find other opinions.
If you can't easily remove the battery, as in many modern laptops, then I suppose you can only follow the first paragraph above.
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