DESCRIPTION
Low cost Lithium Polymer batteries have revolutionized electronics – they’re thin, they’re light, they can be regulated down to 3.3V and they’re easy to charge. On your phone, there’s a little image of a battery cell that tells you the percentage of charge – so you know when you absolutely need to plug it in and when you can stay untethered. The Adafruit LC709203F LiPoly / LiIon Fuel Gauge and Battery Monitor does the same thing. Connect it to your Lipoly or LiIon battery and it will let you know the voltage of the cell, it does the annoying math of decoding the non-linear voltage to get you a valid percentage as well!
Since this nice chip is I2C, it works with any and all microcontroller or microcomputer boards, from the Arduino UNO up to the Raspberry Pi. And you don’t have to worry about logic level, as the gauge runs with 3.3V or 5.0V power and logic equally fine.
To get you going fast, they’ve spun up a custom made PCB in the STEMMA QT form factor, making it easy to interface with. The STEMMA QT connectors on either side are compatible with the SparkFun Qwiic I2C connectors. This allows you to make solderless connections between your development board and the LC709203 or to chain it with a wide range of other sensors and accessories using a compatible cable.
FEATURES
To use, connect the single-cell battery to one of the JST 2 PH ports (either one). Then use the included JST PH jumper cable to connect to your boost converter, Feather, whatever! Use the I2C interface and Adafruits Arduino or CircuitPython/Python library code to set the pack size (this helps tune the calculation) and read the voltage and percentage whenever you like. If you connect a 10K thermistor to the THERM pin you can also use it to read the battery pack temperature – our packs do not come with a built in thermistor but many do.
RESOURCES
- Primary Guide
- Arduino Library
- CircuitPython Library
Speedy Delivery and Professional Packaging
Our long-standing relationships with UPS FedEx DHL and other global carriers lets us offer an array of shipping services. Our warehouse staff is highly skilled and will pack your products according to our precise and exact specifications. Your products will be subjected to an extensive inspection and be safely packaged prior to being delivered. Every day, we deliver to thousands of customers across different countries. Our determination to be the largest online retailer in the world is shown by this. The warehouses are located situated in Europe in the same way as they are in USA.
Orders that include more than one item are assigned processing times according to each item.
We will thoroughly inspect all products before they are shipped. The majority of orders are shipped within 48 hours. The delivery estimate is between 3-7 days.
Returns
Due to the multiple parties involved, including the factory and the warehouse, we're unable to completely manage our stock. Actual stock levels may fluctuate at any moment. It's possible that the inventory could run out once your order has been placed.
Our policy lasts for thirty days. If you don't receive your item within the 30 days period, we're not able to provide the option of a refund or exchange.
In order to be eligible for a refund, your product must be unopened and in the same condition as when you received it. The item must be returned in its original packaging.
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