Specifications:
-Lipo Li-ion Battery Low Voltage Buzzer For 2S/3S/4S RC Lipo Battery
-Double buzzer, more loader than before
-For 7.4V 11.1V 14.8V lipo Li-ion pack
RC Lipo Li-ion battery monitor buzzer with LED warning light
Voltage meter (for 7.4v to 14.8v Lipo)
2s - 4s lithium Li-po battery
Specification:
1. Double buzzers
2. Size: 30mm x 22mm x 10mm
3. Weight: 7.5g
Instruction:
-When testing full power(>3.6V) 2S (7.2V) lipo battery 2 green LED keeping on light
-When testing full power(>3.6V) 3S (10.8V) lipo battery 3 green LED keeping on light
-When testing full power(>3.6V) 3S (14.4V) lipo battery 4 green LED keeping on light
-When testing full power(<3.6V) it will buzzer with Red light
Notice:
If the lithium cell voltage drops below a certain level the cells can become permanently damaged. In order to protect your lithium-polymer investment it is therefore essential to use some kind of monitoring device just like above one to alert you when your pack voltage gets too low.