Installed on board the model and connected to the power wires or to the connector of the balancer of the running battery, consisting of 2 lithium-ion or lithium-polymer cells.
Built-in bright LEDs and a buzzer allow you to monitor the battery status at a considerable distance.

Number of indication levels - 4+1
Temperature range - 0...+40°С
Number of tested batteries - 2
Operating voltage - 7.5 - 13.5 V
Setting accuracy - 0.1 V/cell
Current consumption (no more) - 30 mA
Dimensions - 35 x 17 x 13 mm
Weight (with wires) - 6 g

Indicates the following voltage levels (in terms of one element):
1. Green on - above 3.7 V
2. Green blinking - 3.4...3.7 V
3. Red on + rare beeps - 3.25...3.4 V
4. Red blinking + rare beeps - below 3.25V

If the battery voltage is kept below 3.25 V per cell for 7 seconds, the indicator will go into a dangerous discharge hold state, accompanied by a rapid flashing of the red indicator and frequent beeps. You can exit this mode only by disconnecting the indicator from the battery.

When the indicator is turned on, it self-tests by turning on the green and red LEDs in sequence and emitting a single beep. At the end of the test, the indicator switches to the battery status control mode.
Ultra-bright LEDs and a sound emitter allow you to assess the battery status at a significant distance from the model.

After the start of the model, the battery should be disconnected both from this indicator and from other electrical consumers installed on the model (stroke controller, WEC-system, etc.).
Failure to comply with this requirement may lead to deep discharge of the battery and its failure.

WARNING!
Lithium polymer batteries are a source of increased danger. During their operation, it is necessary to strictly observe all the requirements of the battery manufacturer for their operation, especially the charge and discharge modes.

The ingress of water and dust on the indicator board and into the hole of the sound emitter can lead to indicator failure.