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Larger View	2S-4S Li-po Battery Low Voltage Buzzer - Sku# FPYO156X Sku: FPYO156X Price: $5.52
Description: - When testing full power (>3.6V) 2S (7.2V) Li-po battery, 2 green LED keeping light; - When testing full power (>3.6V) 3S (10.8V) Li-po battery, 3 green LED keeping light; - When testing full power (>3.6V) 4S (14.4V) Li-po battery, 4 green LED keeping light; - When voltage <3.3V, it will buzzer with red LED light. - Really useful in flight if you canât see the lights.- Demension: 4.22.50.8(cm) - Weight: 8.56(g)