Discharge of the battery or batteries in the device they are using is one of those situations that, while inevitable and obvious – will be able to surprise people, even the most involving. If the mobile devices – smartphones, tablets, laptops are equipped with status indicators charge enough on their own built devices require the inclusion of such functions in the project. Fortunately, you don't need to reinvent the wheel – in our assortment you will find great indicators of the battery or batteries, ready for integration into Your own electronics.
MicroSD card reader module with 5V voltage converter - Pololu 2587
Index: PLL-04083
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- Reduced price
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Round pass-through foot switch PN31 230V - white 69mm - 5pcs
Index: PRO-17241
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Step-Down Voltage Regulator D24V3F3 - 3,3V 0,3A - Pololu 2097
Index: PLL-01330
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Wskaźniki rozładowania, ładowania akulumatorów i baterii
Products: 8
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Battery charge level and sound level indicator - KA2284
The module is based on the KA2284 system. It is used to measure the input signal with the 5 LEDs, which are gradually included depending on the value of the measured voltage....
Index: MOD-07150
Index: MOD-07150
Li-pol 1-8S voltage indicator with P309 buzzer
Voltage indicator for Li-Pol batteries (from 1 to 8 cells) equipped with a low voltage sounder.
Index: MOD-05015
Index: MOD-05015
DFRobot Gravity - I2C battery charge level meter
A module designed for reading the Li-Pol 3.7 V battery charge level in real-time. It is also equipped with alarm function when the battery level is low, or when battery power...
Index: DFR-12263
Index: DFR-12263
Li-Pol / Li-Ion battery charge meter - MAX17048 - STEMMA JST PH & QT / Qwiic - Adafruit 5580
Compact meter based on the MAX17048 chip , which allows you to monitor the charge level of single-target Li-Pol and Li-Ion packets with a voltage ranging from 3.7 V to...
Index: ADA-21997
Index: ADA-21997
Qwiic Fuel Gauge - MAX17048 - SparkFun SPX-17715
Based on the MAX17048 chip, this module is from SparkFun's SparkX series of experimental products. The Qwiic Fuel Gauge is ideal for monitoring the charge level of single...
Index: SPF-19156
Index: SPF-19156
LC709203F - LiPoly / LiIon Fuel Gauge and Battery Monitor - STEMMA QT / Qwiic - Adafruit 4712
Battery level indicator from Adafruit. It allows to measure the voltage of Li-Pol and Li-Ion batteries. Displays the voltage value and percentage charge of the cell. The...
Index: ADA-18235
Index: ADA-18235
Grove - LTC2941 - Coulomb Counter 3.3V/5V
A module designed for reading the level of rechargeable single-chamber Li-Pol batteries, from 3.3 V to 5 V in real-time.
Index: SEE-13514
Index: SEE-13514
To measure voltage or capacity?
This is the eternal question requires more detailed answer and disprove some myths. If the battery voltage is a fairly good indicator of a full charge or discharge, then a more accurate determination of the current energy, for example, in percentage of the nominal capacity, it is a bit more complicated. Previously used batteries (e.g. lead-acid or Nickel-cadmium) had the characteristics to determine approximately the amount of power remaining based on voltage measurement, however, used today, modern lithium-ion batteries (Li-Ion) and lithium polymer (Li-Po) behave quite differently- this applies not only to other, more complex charging methods (constant current/constant voltage, complying with the multilevel security system), and discharge characteristics. That is why its state is not simply knowing the voltage that the display discharge will be delayed in a complex mathematical model to convert the voltage currently used capacity.
Accurate measurement of battery capacity
For accurate determination of the actual state of charge of the battery, is to apply the method of "counting kulombów". The main principle of operation is only slightly more complicated than a simple measurement of voltage and involves the simultaneous study as the voltage at the battery terminals and flowing and flowing zen current. Thus, you can, using appropriate calculations, often implemented in software or hardware in the discharge indicator is to determine the real state of the battery that matters, first of all, because of progressive with successive cycles of charging and discharging of the degradation of the battery capacity. This is precisely the reason why the battery two or three years the smartphone holds charge much less than from the instance directly from the shelves.
Indicators category of the store Botland
In our offer you will find some great modules that will allow You convenient and accurate measurement of the real operating conditions of the battery or a disposable battery. We pay particular attention to the battery discharge indicator series DFRobot Gravity. This small module is equipped with a system MAX17043 allows you to measure voltage and automatic recalculation of its value SOC (eng. State Of Charge – charge). You will find here also a Grove module with the joint counter kulombów LTC2941 used to measure the amount amperogodzin as increase the measuring current as the voltage on the battery.