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What do the different lights mean on RYOBI 18V Multi Chargers?

29/05/2026, 12:22

This light guide applies to 18V ONE+ 6-Port Charger (model RC18640) and Ryobi 18V ONE+ Dual Port Charger (model RC18240): 

Charger LED IndicatorBattery Pack StatusRed LEDGreen LEDAction
multi port charger - evaluate

 

EvaluateHot battery packFlashingOFFWhen battery pack reaches cooled temperature, charger begins fast charge mode.
EvaluateCold battery packFlashingOFFWhen battery pack reaches warmed temperature, charger begins fast charge mode. 
multi port charger - defective

 

DefectiveDefectiveFlashingFlashingBattery pack or charger is defective.
• If defective, try to repeat the conditions a second time by removing and reinstalling the battery pack. If the LED status repeats a second time, try charging a different battery.
• If a different battery charges normally, it's likely an issue with the battery. 
• If a different battery also indicates "Defective," the charger may be defective.  If defective and it’s still within the warranty period, take it back to the retail store along with your receipt or proof of purchase for warranty assessment.
multi port charger - fast chargingChargingFast chargingOFFFlashingBattery pack is being charged.
multi port charger - taper chargingChargingTaper chargingOFFFadingBattery pack is being charged at lower rate. 
multi port charger - fully chargedFullCharging completeOFFONBattery ready to use.

 

This light guide applies to the Ryobi ONE+ 18V 6-Port Supercharger (model RC18627U): 

Charger LED IndicatorLED FunctionBattery PackAction
Red onBattery InWaitingBattery is standing by awaiting it's turn to charge.
Red flashingTestingDeeply dischargedCharger pre-charges battery until normal voltage is reached, then begins charge mode.
Red fadingDefectiveDefectiveBattery pack or charger is defective.
  • If defective, try to repeat the conditions a second time by removing and reinstalling the battery pack. If the LED status repeats a second time, try charging a different battery.
  • If a different battery charges normally, the initial battery is likely defective. If defective and it’s still within the warranty period, take it back to the retail store along with your receipt or proof of purchase for warranty assessment.
  • If a different battery also indicates “Defective,” the charger may be defective. If defective and it’s still within the warranty period, take it back to the retail store along with your receipt or proof of purchase for warranty assessment.
Green flashingChargingChargingBattery is charging.
Green onChargedBattery fullCharging is complete
Green fadingEnergy Saver modeBattery full / energy save modeBattery pack is fully charged and charger is in Energy Save mode.
Orange flashingTemperature DelayHot battery packWhen battery pack reaches a cooler temperature charging will begin.
Cold battery packWhen battery pack reaches a warmer temperature charging will begin.


If your battery isn't charging, see: Why isn't my RYOBI Battery charging?

Applicable Models

RC18640, RC18240, RC18627U