this is a value of 0 – 1023 coming from the sensor pin and has to be converted.ĭelay(1000) //give a delay between readings. Universial battery indicator meter wide voltage input range DC 12V-84V Fits for various battery suitable for 12V/24V/36V/48V/60V/72V/84V. print the value of the sensor multiplied by 0.00326 to get true voltage reading. SensorValue = analogRead(sensorPin) //set sensorValue as an analog read of the A0 pin Serial.begin(9600) //initialize serial communication This is the default value, but we can set it anywaysĪnalogReference(DEFAULT) //5V Reference on UNO Int sensorValue = 0 //variable to store the value coming from the sensor Int sensorPin = 0 //set up the sensor pin for reading the voltage Make sure to tie the ground back to the Arduino. we wouldnt want to send to much voltage to our Arduino. and negative terminal of the battery to read reference voltage from. Use two 1.2 K Ohm resisters as a voltage divider from the positive I just wanted a way to monitor the charging progress, although, this could certainly be added to any project that uses a 3.7 volt LiPo battery for its power supply. All the charge controlling circuitry is built into the battery. In the picture below I am charging my battery from a 5 volt source. Product dimensions(WxDxH):2.41″x1.31″x0.53″/ 61.3×33.3×13.5mm Drilling hole dimensions(WxD):2.3″x1.12″/ 58.5×28.There is probably room for improvement here but this is what I have come up with for a 3.7 Volt LiPo battery meter. It can automatically detect the voltage and total voltage of each cell of lithium battery. With turn off button. Wide voltage input, 12-84V, reverse protection, percentage of electricity, the voltage value of accurate display, the voltage accuracy of 1%Īpplicable battery specification: Lead-acid battery 12V, 24V, 36V, 48V, 60V, 72V, 84V Lithium-ion battery 3-15 seriesĪpplicable battery type: Ternary Lithium battery, Polymer lithium-ion battery, Lithium ion battery, Storage battery, Water battery, etc.Īpplication: Various instruments and meters portable device power bank medical device, electro mobile, self-balance car. The voltage display is used for 1s 8s lithium battery detection. This battery indicator meter features wide input voltage, low power consumption. It can test the battery capacity of any lithium-ion battery. Widely and ideally used for ATV,quads, 4 wheelers, electric bike, golf cart and so on Made with ABS plastic LCD digital display with PVC waterproof screen protector and bright white back-light, low power consumption Switch the button to read the battery capacity or voltage. Multifunctional application – suitable for motorcycle, car, truck, vehicle, marine, boat, jet ski, golf cart, club car, forklift.What’s more, there’s a turn-off button for it. Digital display & low power consumption – the battery detector shows the results through the clear LCD display with PVC waterproof screen protector and bright white back-light.2 in 1 Battery tester – you can change the switch to read the battery capacity or voltage only need to connected to the battery, no need extra power, plug and play in use.Fits for various battery – suitable for 12V/24V/36V/48V/60V/72V/84V Ternary Lithium battery, Polymer lithium-ion battery, 3-15 series Lithium ion battery, Storage battery, Water battery, etc.Universial battery indicator meter – wide voltage input range DC 12V-84V.
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