3Pcs 9V 12V Battery Sound and Light Alarm Protection Module Against Over-discharge Board
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This 12V battery low voltage detector is a nice handy little package that can easily be hooked into the wires close to the battery using whatever your favourite connectors are. The default low voltage detection point is very low. If you are using it on batteries with low power devices attached, the alarm voltage is so low you will have a damaged battery before it goes off. For a battery running something like an FPV base station the lowest voltage you would want is about 11.3V. Smaller loads will have even higher voltages at which the battery will be fully discharged. It is very easy to set the alarm point with the screw adjustment. To find out what your target set point should be, the article in the link below is very good. http://scubaengineer.com/documents/lead_acid_battery_charging_graphs.pdf
Chegou rápido, boa qualidade, simples mas suficiente para aquilo que preciso.
super produit
Excellent Electronics Company !
Works as described with wide low alarm setting range
Thanks
Petit module super comme sentinelle des accus fonctionne très bien .
Many Thanks....
délais de livraison correcte conforme à la description très pratique
FINE PRODUCT AND SHIPPING