9V 12V Battery Excessive Discharge /anti-over-discharge Alarm Board
9V 12V battery excessive discharge /anti-over-discharge alarm board
Features:
1, Size: 2.9CM*3.0CM
1, the main chip: LM358;
2, suitable for 9V 12V battery, when the battery voltage is normal, it will not alarm; when the battery is over-discharge (less than 10.4V (12V battery) or 8V (9V battery) )so, the board will automatically alarm , the red light is on and the buzzer is called, to achieve sound and light alarm, enabling master battery discharge status, prevent over-discharge the battery, damage the battery;
3, its power consumption:
Specifications:
1, with sound and light alarm, there is no protective effect is straightforward;
2, how to adjust the sensitivity ,please see the photo.
Package include:
1 pc x 9V 12V battery excessive discharge alarm
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