Understanding the Charge LEDs on Boost
NOCO Boost jump starters are equipped with 4 LEDs to indicate 25%, 50%, 75% and 100%. These Charge LEDs indicate the internal battery’s state-of-charge.
25% CHARGED.
The 25% Charge LED will be solid Red when the internal battery is less than 25% charged.
50% CHARGED.
The 50% Charge LED will be solid Red when the internal battery is less than 50% charged.
75% CHARGED.
The 75% Charge LED will be solid Yellow when the internal battery is less than 75% charged.
100% CHARGED.
The 100% Charge LED will be solid Green when the internal battery is less than 100% charged.
FULLY CHARGED.
When the internal battery is fully charged the 100% Charge LED will be solid Green with no other LEDs illuminated.
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Since 1914