Don't panic! A blinking light often signals a simple communication error, not a failure.
The blinking light signals a communication failure between your battery’s thermal sensor and the charger.
Unplug your charger for 60 seconds and clean the metal terminals with isopropyl alcohol first.
Your charger is a diagnostic computer that verifies battery health before beginning the charging process.
Internal issues include low voltage lockout, broken thermistor sensors, or worn-out spring-loaded charger rails.
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