Simple to use Lipoly low voltage alarm that is small and light for on board use, plug's into balance lead for detecting low voltage on individual cells. A loud alarm will sound and LED will change from Green to Red if any individual cell drops to 3.3v or below.
Lipoly Range: 2s~4s
Voltage Accuracy: 0.03v
Low Voltage Alarm Threshold: 3.3v (per cell)
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Great product, I use it on all of my quad racers. Makes me feel safe and its a great safety to know when to land, before disaster happens. If I have to complain something, it would be that if I'm cruising without punchouts or other amp draw spikes, the warning beeps starts very late and you have to land almost directly on the spot. Great value, everyone should have one!