Charger Light Explanations

What Do the Charger Lights on the FLEXiO 3550 Mean?

Here’s what each indicator light on the FLEXiO 3550 battery charger means:

• Fast blinking green: Fast charge mode
• Slow blinking green: Battery is at least 80% charged and has entered long life charging mode to promote battery longevity
• Steady green: Battery is fully charged
• Steady red: Battery pack is likely too hot and needs to cool down
• Blinking red: Battery is not charging. It may be contaminated, defective, or the wrong battery type for the charger