ChipScout

Comparison page

18650 Battery Holder vs MCP23017

Side-by-side selection notes for specs, ecosystem readiness, known issues, and data confidence. This page is generated from structured component fields instead of a hand-written article.

18650 Battery Holder

Projects needing Battery holder and Mechanical with a commonly available power part.

MCP23017

Projects needing IO expansion and 16 pins with a commonly available power part.

Specification Matrix

Dimension18650 Battery HolderMCP23017
CategoryPowerPower
MakerGenericMicrochip
CoreNot specifiedNot specified
ClockNot specifiedNot specified
WirelessNot specifiedNot specified
Voltage3.3V3.3V
LibrariesNeeds verificationArduino, MicroPython
Price$0.20 - $2.00$1.00 - $3.50

Known Tradeoffs

18650 Battery Holder

  • Breakout boards may use different pin labels or regulator choices
  • Clone modules can differ from the original datasheet part

MCP23017

  • Breakout boards may use different pin labels or regulator choices
  • Clone modules can differ from the original datasheet part

Open Individual Model Pages

18650 Battery Holder

Generic

Battery holder component useful to include because many maker power designs depend on its mechanical format.

China-madePower64% confidence

MCP23017

Microchip

16-bit I2C GPIO expander used when a microcontroller needs many extra digital pins.

China-madePower86% confidence