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Here are the most relevant picks for Li-ion / LiPo (LiPoly) projects—mostly focused on single-cell (1S) 3.7V nominal / 4.2V full batteries, plus charging and monitoring.
Battery monitoring (fuel gauges / meters) for 1S LiPo/Li-ion
- Adafruit LC709203F LiPoly / LiIon Fuel Gauge and Battery Monitor - STEMMA JST PH QT / Qwiic (I2C, reports voltage + state-of-charge %) — $13.95
- Adafruit MAX17048 LiPoly / LiIon Fuel Gauge and Battery Monitor (I2C, accurate % remaining for 1S 3.7–4.2V) — $12.90
- Single Li-Ion and LiPoly Battery Power Meter (standalone little display meter for single-cell packs) — $5.90
Charging / power modules (LiPo/Li-ion)
- Adafruit Micro Lipo w/MicroUSB Jack - USB LiIon/LiPoly charger [v1] (USB charger for 1S 3.7V/4.2V) — $14.75
- USB LiIon/LiPoly charger [v1.2] (USB mini-B Li-ion/LiPo charger module) — $26.00
- USB / DC / Solar Lithium Ion/Polymer charger [v2] charges from USB / DC / solar (useful for off-grid builds) — $35.15
- Adafruit LiIon or LiPoly Charger BFF Add-On for QT Py compact charger add-on for QT Py + 1S LiPo/Li-ion — $10.55
- PowerBoost 500 Charger - Rechargeable 5V Lipo USB Boost @ 500mA+ boosts 1S LiPo/Li-ion to 5V + built-in charging — $32.40
- PowerBoost 1000 Charger - Rechargeable 5V Lipo USB Boost @ 1A [1000C] same idea, higher 5V output current — $40.10
Batteries / cells (examples in catalog)
- Lithium Ion Polymer Battery with Short Cable - 3.7V 420mAh 1S LiPo with JST-PH lead — $13.95
- 14500 Rechargeable Li-Ion Battery 800mAh 3.7V Nipple 14500 (AA-size) 3.7V Li-ion cell — $10.75
- 18650 3.7v li-ion rechargeable battery with charge protection 18650 with built-in protection PCB — $12.35
18650 accessories
- Smart Charger for 18650 4.2V Li-ion battery multi-slot Li-ion charger for cylindrical cells — $9.25
- 18650 Battery holder without DC connector simple single-cell holder with leads — $2.15
Handy LiPo connector tool
- Adafruit JST PH LiPo Battery Connector Remover helps safely unplug JST-PH LiPo/Li-ion packs without yanking wires — $4.80
Which type are you trying to buy?
Showing 1-20 of 60 products
SparkFun USB LiPoly Charger - Single Cell
The SparkFun USB LiPoly Charger is a single-cell Li-Ion/Li-Polymer battery charging board based on the MCP73831T. It charges 3.7V LiPo cells at a selectable rate of 500 mA or 100 mA via a solder jumper, with power input from either USB or a barrel jack connector. The board includes a SYS OUT JST...
Lithium Ion Polymer Battery - 3.7v 500mAh
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Lithium ion polymer (also known as 'lipo' or 'lipoly') batteries are thin, light and powerful. The output ranges from 4.2V when completely charged to 3.7V. This battery has a capacity of 500mAh for a total of about 1.9 Wh. If you need a larger (or smaller!) battery, we have a full range of LiP...
18650 Battery Protection Module (12V 10A)
A 3S (3-series) battery protection module designed for connecting three 18650 or polymer lithium-ion cells in series to create a 12 V rechargeable battery pack. The board provides overcharge, over-discharge, overcurrent, and short-circuit protection to safeguard your battery pack during charging ...
Adafruit Pro Trinket LiIon/LiPoly Backpack Add-On
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The Adafruit Pro Trinket LiIon/LiPoly Backpack is a tiny add-on board that sits on top of your Pro Trinket or ItsyBitsy, adding rechargeable LiPo battery support with automatic charging and power switching. When USB is connected, the battery charges automatically. Unplug USB and it seamlessly swi...
Single Li-Ion and LiPoly Battery Power Meter
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This small, palm-sized battery power meter has a small display that shows off how much juice is left in your single Lithium Ion/Polymer rechargeable battery. The color display has four levels of power indication once battery capacity becomes 100%, 75%, 50%, and 25%. When power is below 25%, only ...
Adafruit LC709203F LiPoly / LiIon Fuel Gauge and Battery Monitor - STEMMA JST PH QT / Qwiic
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The Adafruit LC709203F Fuel Gauge monitors your single-cell LiPo or Li-Ion battery and reports both voltage and state of charge as a percentage over I2C. It handles the non-linear voltage-to-percentage conversion for you, so your project always knows exactly how much battery is left — just like t...
DFRobot Solar Power Manager Kit with 9V Panel
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Build a compact off-grid power supply for embedded electronics, IoT nodes and low-power projects with this solar power management kit from DFRobot. It combines a Solar Power Manager board for 9V/12V/18V panels with a compact 9V 220mA solar panel.The controller integrates constant-voltage MPPT sol...
Solar Power Manager, Embedded 10000mAh Li-Po Battery, Supports 6V~24V Solar Panels
SOLAR POWER MANAGER Compatible with 6V~24V solar panels, embedded 10000mAh Li-po battery Recharged From Solar Panel, Or TYPE-C Power Adapter5V/3A Regulated Output Product Features The Solar Power Manager (B) is compatible with general 6V~24V solar panels. It can recharge the 3.7V re...
Lithium Battery Charger
If you need to charge LiPo batteries, this simple charger will do just that, and do it fast! The Lithium Battery Charger can charge 3.7V LiPo battery at a rate of 500mA per hour. It is designed to charge single-cell Li-Ion or Li-Polymer batteries. Check the datasheet below to see if it will wo...
Mini Uninterruptible Power Supply module, Supports charging And Power output at the same time, 5V 2.5A Output
A compact uninterruptible power supply (UPS) module that supports simultaneous charging and power output. When external power is connected, it charges the batteries while providing a stable 5V output. If external power is lost, it automatically switches to battery power without interruption — kee...
SparkFun LiPo Charger Basic - Micro-USB
If you need to charge LiPo batteries, this simple charger will do just that, and do it fast! The SparkFun LiPo Charger Basic is stripped down of all features and just does one thing well - charge 3.7V LiPo cells at a rate of 500mA. It is designed to charge single-cell Li-Ion or Li-Polymer ba...
Adafruit bq25185 USB / DC / Solar Lithium Ion/Polymer charger
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The Adafruit bq25185 Charger is a versatile LiPo/LiIon/LiFePO4 charging board that supports USB, DC, and solar power input. It is an excellent upgrade from MCP73833 or MCP73831-based chargers, offering multi-chemistry support, adjustable charge rates, smart power path management, and near-MPPT so...
Pico - Uninterruptible Power Supply
Uninterruptible Power Supply For Pico Keeps Your Pico Running While Recharging, Monitoring Battery Status Via I2C Features At A Glance The Pico-UPS-A is a dedicated UPS (Uninterruptible Power Supply) module designed for Raspberry Pi Pico. It incorporates Li-ion battery swi...
Uninterruptible Power Supply Module, Supports charging And Power output at the same time, 3S & 5V 5A Output
Uninterruptible Power Supply (UPS) Module, Supports charging And Power output at the same time, 3S & 5V 5A Output Uninterruptible Power Supply Module 3S Supports charging and power output at the same time, 3S * & 5V 5A output * 3S indicates that powered by 3x 18650 Li batteries...
Micro: IO-BOX Expansion Board
Micro: IO-BOX is a micro:bit multifunctional expansion board with on-board Li-ion battery power, delicate appearance and easy to use. We integrated numerous functions on the 6cm×6cm board such as 2-way driver motor, 9-way IO port, 2-way I2C port, 1-way serial port, 1-way buzzer, 4-way RGB LED, Li...
UPS HAT (D) for Raspberry Pi, Supports 21700 Li battery (NOT included), 5V Uninterruptible Power Supply, Pogo Pins Connector
The UPS HAT (D) is a powerful uninterruptible power supply designed for Raspberry Pi, offering seamless charging and power output with dynamic path management. This HAT provides stable 5V output, ensuring uninterrupted operation for your Pi projects. It supports 21700 Li-ion batteries (not includ...
14500 Rechargeable Li-Ion Battery 800mAh 3.7V Nipple
A 14500-size rechargeable lithium-ion battery with 800mAh capacity and 3.7V nominal voltage. The 14500 form factor is the same size as a standard AA battery, making it a common choice for LED torches and other compact devices that accept this cell type. This cell has a nipple (button-top) positiv...
Constant Current Power Supply - 12.6V 10A
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This constant current DC power supply provides a fixed 12.6V DC output with a constant 10A current output. It is a straightforward option for projects that need a rugged, enclosed supply for compatible loads such as LED lighting-type devices.The unit is built into a robust metal enclosure with an...
Adafruit Proto Doubler PiCowbell for Pico and PicoW
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The Adafruit Proto Doubler PiCowbell gives your Raspberry Pi Pico or Pico W two side-by-side socket slots — plug in your Pico on one side and a PiCowbell accessory on the other, no soldering or stacking headers required. It also adds LiPo battery charging, a power switch, reset button, STEMMA QT ...
4-Channel Universal Fast Charger with LCD
This 4-channel universal charger handles Ni-MH, Ni-Cd, Li-ion, and LiFePO4 cells simultaneously across four independent slots. Each battery is monitored individually by a microprocessor with precise Pulse Width Modulation (PWM) control, ensuring safe and efficient charging. A single Li-ion or LiF...
