![]() ![]() Those batteries generally were an improvement over NiCads, primarily because they weren’t as susceptible to the memory effect. The next generation of laptops used Nickel-Metal-Hydride (NiMH) batteries. Luckily, there are very few NiCad batteries still powering laptops these days, so for most people this won’t be an issue. Therefore, if you still have a laptop that uses a nickel-cadmium battery you should let it discharge completely before allowing it to recharge. This memory effect lowered the useful life of a charge dramatically, requiring the purchase of a new battery long before it should have reached the end of its useful life. If NiCads weren’t allowed to discharge all the way before being recharged they would eventually “remember” the level of charge they fell to before recharging and act as if they were completely drained every time their charge decreased to that level. My answer? Well, it depends on the type of battery that it uses.Įarly laptops used nickel-cadmium (NiCad) batteries which were subject to a “memory effect”. I’m often asked whether laptop batteries need to be drained completely before recharging them. ![]() Like my tips? Click here to sign up for my free Daily Tech Tips Newsletter and you’ll never miss one! ![]()
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