Lithium-Ion Battery Specifications
Quick definitions:
· Ampere Hour (Ah): This is how much ‘fuel’ or charge a battery can store
· Voltage (V): How much ‘strength’ or power the battery can provide
· Memory Effect: When a battery has reduced capacity due to incorrect charging
· Cycle Life: The number of times a battery can be recharged before performance degrades
· Self-Discharge: The amount of charge a battery loses when not in use
Lithium-Ion batteries are the most modern type of batteries and work best for cordless tools.
Quick facts about li-ion batteries:
· Cycle life: <1900 cycles (depending on design and make of battery)
· Self-discharge: 8% at 21 °C (much higher though as temperature increases)
· Ah rating: 2.0 Ah and up!
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Li-Ion Batteries Pros |
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Very light-weight and small |
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Hold a large amount of energy |
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Self-discharge rate is very low at normal room temperatures |
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No memory effect |
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No memory effect |
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Requires no maintenance |
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Li-Ion Batteries Cons |
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High temperatures during use or charging can cause the batteries to explode, although most feature adequate safety features to prevent this |
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High cost compared to other battery types |
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Is sensitive to heat and impact |