No Indication: Battery inserted incorrectly

Single Green Blink: Successful charger power-up

Blinking red: Battery is unable to charge or not making proper contact

Steady red: Battery is in rapid-charger mode

Blinking Orange: Battery is recognized by charger but is waiting to rapid charge (Either the battery voltage is low, due to over-discharge, or the battery temperature is to low or to high to allow rapid charging. When this condition is corrected, the battery will automatically begin rapid charging)

Additional case for new ultra-high capacity, have capacities exceeding 2000 mAh. After approximately 15 minutes, the LED may go into a flashing Red mode. Remove and reinsert to get another over-discharge recovery period. This procedure may need to be repeated several times.

Blinking Green: Battery charging is tapering down ( typically, when the battery is charged approximately 90% or greater)

Steady Green: Battey is nearly charged or charged