You're not connected to the Internet.


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]



Click 'show more' to display specifications.

General information

Manufacturer SparkFun
Product type Elektronikmodul
Item number5999059
Manufacturer no.PRT-13777

Please click directly on the incorrect data to access the registration form.

Alternatively, you can register a generic error report (wrong picture, unsuitable accessories, etc.)


Report incorrect data

Correction suggestion


Report incorrect data

If you wish to learn more about this product, please visit the manufacturer's website or contact us:

Warranty & right to return

Warranty 24 month Bring-in

Limited right of return

Warranty and return

Please use our simplified returns and warranty process to return a product or register a warranty case. Returns and warranty

Please use our simplified warranty process to view the warranty period as well as any warranty extensions you may have purchased. This will ensure that your return or warranty case is processed quickly and effectively.


Mail delivery

 Expected delivery time: approx. 6–8 days
Currently 2 piece(s) in stock at the supplier


All locations

 Expected delivery time: approx. 6–8 days
Currently 2 piece(s) in stock at the supplier

If ordered immediately.
Information subject to change.

Customer questions and answers

No questions so far.

Do you have a question? Ask the Galaxus community.

Ask a question

Ask other customers about product properties, performance or use.

Customer ratings

This product has not yet been rated.

Have you tested this product? Share your opinion with the Galaxus community.

Rate product
SparkFun Battery Babysitter LiPo Battery Manager SparkFun Battery Babysitter LiPo Battery Manager