Lithium-ion batteries also lack a âmemory effectâ and can be recharged before the battery has been completely discharged. The contents of lithium-ion batteries are also less toxic than most other battery types, which makes them easier to recycle, and less harmful to the environment. Still, recycling a lithium ion battery prevents the contamination of up to 60,000 liters of water (the equivalent of 3 Olympic pools!). To extend the life of your lithium-ion battery, there are a few things you can do: