Battery Charging tips
Our chargers have an indicator light. When charging, the indicator light is red and when fully charged, it will be green. When a lithium-ion battery is fully charged, the charging process is stopped.
A Li-ion battery does not need to be pre-charged for more than 12h, this is a common myth. Upon purchasing your battery, there is no benefit in charging it initially for an extended period of time.
Never leave a charging battery unattended, and always place the battery on a non-flammable surface when charging.
Avoid running the battery completely flat, rather charge it frequently. Unlike Nickel Cadmium that builds up a memory, Lithium-ion does not. This means Li-ion batteries can be recharged at any point.
We suggest that you charge the battery after use. If you plan to store the battery, make sure it is about 50% charged. The best for long term storage is not fully charged, but between 40% and 60%. This is indicated by Yellow or Blue on the battery indicator.
Following these guidelines will prolong your battery life.
For an in-depth discussion about this topic you can read How to Prolong Lithium-based Batteries from http://batteryuniversity.com.