![]() You want to store your batteries at approximately 50% charge if you don’t intend to use them again within a week or so. How long lithium-ion batteries last when used is one thing-but what about when you store them? After all, that might affect whether or not you want to pick up that “used” battery at the flea market.Ī number of factors affect a battery pack’s lifespan on the shelf. How Long Do Lithium-ion Batteries Last in Storage? That’s just one example of why you may want to stick with original manufacturer batteries and chargers. It also extends the amount of charging cycles the battery can go through. This process helps extends the useful life of the battery. Then, the charger regulates the optimal current, voltage, and temperature to recharge the battery. Their chargers and batteries use a communication system that recognizes a battery’s current charge level and temperature. Some companies, like Makita, use a “smart” system that accounts for this. In fact, several studies, indicate that battery capacity may drop as much as 40% or more after 1000 cycles. While one of the strengths of lithium-ion batteries is the lack of cell memory, you can still exhaust the maximum longevity of the cells (and the pack) by charging them more frequently than you need to. Unfortunately, most manufacturers define a charge cycle as any time you pop the battery on the charger and let it start working. Do you charge your batteries at the end of the day? Do you change them as soon as you finish using the tool-or do you pop them on at lunch so they’re topped off when you return to work? Lastly, battery configuration and capacity play a part, as do ambient storage temperatures. However, the number of charging cycles depends on how you charge your batteries and what you consider a charging cycle. When we talk about how long a lithium-ion battery lasts, we’re ultimately talking about how many charging cycles it has. How Many Charging Cycles Can You Expect to Get? Going Beyond the Lithium-ion Longevity Question.How Long Do Lithium-ion Batteries Last Compared to NiCad Batteries?.How Long Do Lithium-ion Batteries Last in Storage?.How Charging Cycles Affect Lithium-ion Battery Capacity.How Many Charging Cycles Can You Expect to Get?.
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