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DIY Magnetic Connector - Straight Angle 5-pin magnetic connectors - Adafruit 541

Index: ADA-21440

Filament PA6 CS20 FR V0 1,75mm 0,75kg - Black

Index: SPC-21777

SparkFun Qwiic SHIM Kit - kit with display for Raspberry Pi - SparkFun KIT-16987

Index: SPF-21209

Noctua NF-A4X10 FLX 3700-4500 RPM - 40x40x10 mm - 3pin fan

Index: ACT-21653

Sandpaper P400 Yato YT-8411 - 10pcs

Index: TOY-21662

Top Fuel Dragster - mini car - mechanical model for assembly - veneer - 321 elements -...

Index: UGE-21709

Converter USB-UART CH343 - USB type A plug - Waveshare 21442

Index: WSR-21713

Limit switch 50mm - Pololu 1403

Index: PLL-00017

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3D printer - Creality Halot-Lite

Index: CRL-20555

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Servo PowerHD HD-1501MG - standard

Index: MOT-01444

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Sensor Measurement FSR Shield for Arduino

Index: MRV-12160

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Case for Raspberry Pi 4B and 7'' Multicomp Pro touch screen - with switch - red

Index: FAR-19208

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Case for Raspberry Pi Model 4B Pibow Coupé 4 - Red

Pibow Coupe 4 - Red - Case for Raspberry Pi 4 - Pimoroni PIM464

Index: PIM-14880

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Iron Plate KCS-MP-001 - metal plate for Khadas cases

Index: KHD-12450

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Arduino UNO Mini Limited Edition - ABX00062

Index: ARD-20654

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Watch Phone Kids with GPS/WIFI Locator - Black

Art Watch Phone Kids watch with GPS / WIFI ART LOK-3000BK locator - black

Index: MOF-12383

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Rigol Oscilloscope DS1202 Z-E 200MHz 2 channels

Osciloscope Rigol DS1202 Z-E 200MHz 2 channels

Index: NDN-15913

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3D Printer - Creality Sermoon V1

Index: CRL-20733

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Little Bits MakeyMakey - a module compatible with Arduino

Index: ROB-12231

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Acrylic casing for Circuitmess Ringo GSM education set - random colour

Acrylic case for Circuitmess Ringo GSM education kit - different colors

Index: CIM-15670

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Wskaźniki rozładowania, ładowania akulumatorów i baterii

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.

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Products: 7

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

Electro River Cellmeter - Universal battery meter

Index: GFR-19637

Index: GFR-19637

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

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

Li-pol 2-8S voltage indicator with buzzer

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

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

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.