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The SparkFun Battery Babysitter is an all-in-one single-cell Lithium
Polymer (LiPo) battery manager. It's half battery charger, half
battery monitor, and all you'll ever need to keep your battery-powered
project running safely and extensively.

The Battery Babysitter features a pair of Texas Instruments
LiPo-management ICs: a BQ24075 battery charger and a BQ27441-G1A fuel
gauge. The charger supports adjustable charge rates of up to 1.5A, as
well as USB-compliant 100mA and 500mA options. It also features
power-path management, guaranteeing power to your project even if the
battery has died. The self-calibrating, I2C-based BQ27441-G1A measures
your battery's voltage to estimate its charge percentage and remaining
capacity. It's also hooked up to a current-sensing resistor, which
allows it to measure current and power! It's a handy IC to have, if
you ever need to keep an extra eye on your project's power draw.


* LiPo Charger and LiPo Fuel Gauge combined into one board
* DIP-switch-selectable charge rates of 100mA, 500mA or 1.5A
* MicroUSB port for charging, or external options
* Dynamic power-path managment maintains a reliable output supply
* On/Off switch disconnects the battery for more power saving
* 5V-tolerant I2C interface to fuel gauge
* Fuel gauge measures voltage, percentage, and current


* Arduino Library [1]



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General information

Manufacturer SparkFun
Product type Electronics modules
Item number5999059
Manufacturer no.PRT-13777

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Returns and warranty

Warranty 24 month Bring-in
30-day right of return

30-day right of return

This product may be returned within 30 days after shipment or collection. A minimum of 10% will be deducted from opened products. Unfortunately, we cannot accept a product if it is damaged, incomplete or missing its original packaging.

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SparkFun Battery Babysitter LiPo Battery Manager SparkFun Battery Babysitter LiPo Battery Manager