Battery holder 2x 18650 PCB mount

Switch Button 8x8mm on-off features:
- Switch terminals: Weldable
- Measures: 8x8x13mm

Resistors 100R Ohm 5% 0,25W 1/4W features:
- 100R Ohm
-Type: Carbon film
-Tolerance: ±5%
-Power: 0.25W
-Dimensions: 2x7mm

MT3608 2A DC Boost Step-Up Adjustable Power Module MicroUSB features:
- Booster module
- The output voltage may be greater than the input voltage
- Use a multimeter to check the output voltage and adjust the potentiometer
- Input voltage: 2-24V
- Output voltage: 5-28V
- Current output: 2A - Operating temperature: -40ºC to + 85ºC
- Conversion efficiency: up to 93%
- Size: 17.5 x 30 mm

It can be used to work with AVR, ARM, PIC microcontrollers, Arduino modules and to work with self-designed prototypes. Prototype Board Transparent 400 points features:
- Linkable with other plates
- Base with adhesive
- 400 contacts without welding (300 contacts for components and 100 contacts for power rails )
- Transparent ABS
- Measurements 82x 55x 8 mm

Nickel strip in the shape of a square plate to join 4 poles of 4 welded batteries with connection projection. Tape sheets, lithium battery welding.

TP4056 Module Lithium Battery Charger with Protection features:
- TP4056 Li-Ion Micro USB Charger
- Upgraded version of previous TP4056
- Micro USB connection to charge directly from the PC
- Ideal for 18650 batteries
- Based on the TC4056A regulator
- Input Voltage: 4.5V - 5.5V DC
- Full charge voltage: 4.2V +/- 1.5%
- Max Output Current: 1A
- Overvoltage protection 4.2V
- Over discharge protection 2.4V
- LED indicator: charging blue, charging red
- Operating temperature: -10ºC to + 85ºC
- IN + and IN- connection for electronic circuits
- Overcurrent protection: 3A
- Measurements 26 x 19 x 5 mm
- Possibility of current change through Rprog

Version compatible with Arduino Nano V3.0
It has an ATMega328P chip running at 16Mhz with bootloader loaded factory.
Characteristic:
- Microcontroller: ATmega328
- Operating Voltage (logic level): 5V
- Input Voltage (recommended): 7-12V
- Digital I / O Pins: 14 (6 PWM outputs)
- Analog Inputs: 8 (A0-A7)
- DC Current per I / O pin 40 mA
- Flash memory: 32 KB (2 KB used by the bootloader)
- SRAM: 2 KB
- EEPROM: 1 KB
- Frequency Clock: 16 MHz
- USB Communication - CH340
- Dimensions: 18 mm x 44 mm

Super capacious 9V battery made in Li-ion technology, direct charging possible via micro USB port!

tested capacity - real capacity - min. 500 mAh, battery precharged to max. 30%.