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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 21-40 of 54 products · 6 unavailable products hidden
Adafruit Pro Trinket LiIon/LiPoly Backpack Add-On
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...
JST 2-pin Extension Cable with On/Off Switch - JST PH2
By popular request - we now have a way you can turn on-and-off Lithium Polymer batteries without unplugging them. This PH2 Female/Male JST 2-pin Extension Cable comes with an in-line Switch - click once to turn on, click again to turn off. It's super handy especially in tandem with o...
Lithium Ion Polymer Battery - 3.7v 500mAh
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...
Lithium Ion Polymer Battery - 3.7v 1200mAh
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 1200mAh for a total of about 4.5 Wh.The batteries come pre-attached with a genuine 2-pin JST-PH connector a...
Lithium Ion Polymer Battery - 3.7v 1200mAh
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 1200mAh for a total of about 4.5 Wh. If you need a larger battery, we also have a 2500mAh+ modelThe batteri...
Lithium Ion Polymer Battery Ideal For Feathers - 3.7V 400mAh
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 400mAh for a total of about 1.9 Wh. If you need a larger (or smaller!) battery, we have a full range of LiP...
Lithium Ion Polymer Battery - 3.7v 150mAh
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 150mAh for a total of about 0.6 Wh. If you need a larger battery, we have a full range of bigger cellsThe b...
Lithium Ion Polymer Battery - 3.7v 2500mAh
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 2500mAh for a total of about 10 Wh. If you need a smaller battery, we also have a 1200mAh model The batter...
Lithium Ion Battery - 3.7v 2000mAh
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 2000mAh. If you need a larger (or smaller!) battery, we have a full range of LiPoly batteriesThe batteries ...
3.7v 180mAh Li-poly battery
A compact 3.7 V lithium-ion polymer (LiPo) battery with a 180 mAh capacity (~0.6 Wh). Thin, lightweight, and fitted with a genuine 2-pin JST-PH connector for reliable, snag-free connections to compatible chargers and development boards. Includes built-in protection circuitry to guard against ove...
Lithium Ion Polymer Battery - 3.7v 350mAh
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 350mAh for a total of about 1.3 Wh. If you need a larger (or smaller!) battery, we have a full range of LiP...
Orange Cream MA Keycaps for MX Compatible Switches - 5 pack
A 5-pack of Orange Cream MA profile keycaps for Cherry MX compatible switches. These gumdrop-like, retro-styled keycaps feature a fully symmetric curved profile, making them ideal for macro pads, custom keyboards, and NeoKey projects. MA profile keycaps are symmetric in all four directions and r...
USB LiIon/LiPoly charger [v1.2]
This is a Lithium Ion and Lithium Polymer battery charger based on the MCP73833. It uses a USB mini-B for connection to any computer or 'USB wall adapter'. Charging is performed in three stages: first a preconditioning charge, then a constant-current fast charge and finally a constant-volta...
Flexinol - 0.012 Diameter (1 foot)
This 0.012" Flexinol® Actuator Wires (aka shape memory Nitinol) is a one foot long piece of nickel-titanium alloy that can flex and contract when a specific amount of heat or current is applied to it and are made specifically for linear actuators to replace small motors or solenoids. If you are a...
Electro-Fashion, Sewable 5mm LED Holder, pack of 10
When using through hole LEDs it can be hard to form the eyelets and then work out which leg is positive and negative. That's where these Sewable LED Holders come in! The 5mm LED holder boards, quickly and easily take any through hole 5mm LED and (after soldering in place) make them easy to use in...
PowerBoost 1000 Basic - 5V USB Boost @ 1000mA from 1.8V+
PowerBoost is the perfect power supply for your power-hungry portable project! This little DC/DC boost converter module can run from 1.8V batteries or higher, and convert that voltage to 5.2V DC for running your 5V projects. With a beefy 4A DC/DC converter, it can give you 1A+ from as low as 2...
Lithium Ion Battery Pack - 3.7V 4400mAh
Need a big battery for your project? This lithium ion pack is made of 2 balanced 2200mAh cells for a total of 4400mA capacity! The cells are connected in parallel and spot-welded to a protection circuit that provides over-voltage, under-voltage and over-current protection. Each cell can provid...
Adafruit Gemma Sensor Starter Pack
Get started with wearable electronics using the Adafruit Gemma Sensor Starter Pack. This all-in-one kit includes a GEMMA V2 board, sewable RGB NeoPixels, multiple sensors, a rechargeable battery with charger, and everything you need to build interactive sewable projects — no soldering required. ...
Buck-Boost DC/DC Converter 8-36V to 12V 6A
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When your system needs a stable 12V rail from a variable DC supply, this industrial-grade buck-boost converter is built to deliver. It accepts a wide 8 to 36VDC input range and regulates it to 12V for loads up to 6A, or 72W.The buck-boost design automatically switches between stepping voltage dow...
NeoPixel Addressable 1111 LEDs (1.1mm x 1.1mm) - 50 Strip
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Incredibly tiny 1111-size (1.1mm × 1.1mm) individually addressable RGB NeoPixel LEDs for creating ultra-compact or high-density smart LED designs. These are the same integrated LED technology used in NeoPixel strips and pixels, but at a fraction of the size — 20× smaller than standard 5050 NeoPix...