1. Bad Battery Error LED

Illuminates solid Red; Battery Voltage is above Protect voltage.
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2. Reverse Polarity Error LED

Illuminates solid Red when connected battery will not hold a charge.
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3. Hot/Cold LED

Illuminates solid Red when reverse polarity is detected.
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4. Charge LED

Illuminates solid Red when internal temperature is too high. Flashes Red (Along with 2. 3. 4. Error LEDs) when internal temperature is too low.
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5. 6V Mode LED [Press and Hold]

Illuminates when the charger is in Standby Mode, the charger is not charging or providing any power to the battery.
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6. Mode Button

Push to cycle through charging Modes.
How to Change Modes.
How to use Force Mode.

7. Standby LED

Indicates the Charge Mode the charger is currently in. Push the MODE button to cycle through charge Modes.
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8. Mode LEDs

Mode button must be pressed and held for 3 seconds to enter the 6V mode.
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