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Gravity: I2C 3.7V Li Battery Fuel Gauge

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SKU: DFR0563 Brand: DFRobot

3.7V lithium batteries are commonly used in many projects. However, the remaining power and voltage of the lithium battery are highly nonlinear. We can only roughly...

$17.15 AUD, inc GST

$15.59 AUD, exc GST

In stock, ships same business day if ordered before 2PM
Delivered by Tue, 24th of Dec

Quantity Discounts:

10-25 $15.13 (exc GST)
25+ $14.81 (exc GST)

3.7V lithium batteries are commonly used in many projects. However, the remaining power and voltage of the lithium battery are highly nonlinear. We can only roughly judge whether the battery is full or almost empty according to its voltage. The Gravity I2C 3.7V Lithium Battery Fuel Gauge employs Gravity I2C interface, ultra-low operating current, and real-time tracking of the relative state of charge (SOC) of the battery through Maxim's patented algorithm, eliminating the need for full-to-empty relearning and offset accumulation errors. Plug and play to accurately measure the voltage and remaining power of the battery.

The module also features as a low battery power alert interrupt function. When the battery power falls below a specified threshold, the ALR pin generates a falling pulse to trigger the external interrupt of the controller.

You will find it a great help to estimate the battery life by learning the power consumption of the system with this module. In the solar powered projects, it helps to record the status of the battery power change in a day or even months, which benefits understanding the power balance of charge and discharge of the solar system.

Gravity: 3.7V Li Battery Fuel Gauge Connection Diagram (Arduino UNO)

Gravity: 3.7V Li Battery Fuel Gauge Connection Diagram (Raspberry Pi 3B)

Features

Maxim's Patented Algorithm, accurate voltage and remaining power readings of lithium battery
No Full-to-Empty Relearning Process, No Offset Accumulation Errors, Plug and Play
Wide Input Voltage, Compatible with 3.3V and 5V Controllers
Programmable Low Power Alert Interrupt Threshold
Battery Reverse Connection Protection

Applications

Solar Weather Station, Street Light
Lithium Battery Charger
Robotics

Specification

Input Voltage (VCC): 3.3V~6.0V
Battery Input Voltage (BAT IN): 2.5V~4.2V
Battery Type(BAT IN): 3.7V Li-polymer/Li-ion battery
Operating Current: 50 uA
Interface: Gravity I2C (logic level: 0-3.3V)
Dimension: 22.0*30.0mm/0.86*1.18 inches

Documents

Parts List

Gravity: I2C 3.7V Li Battery Fuel Gauge x1
XH2.54-2P Header x1
Gravity-4P I2C/ UART Sensor Wire x1

This product is listed in:

Power & Batteries>Battery Monitoring

Product Comments

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Exact shipping can be calculated on the view cart page (no login required).

Products that weigh more than 0.5 KG may cost more than what's shown (for example, test equipment, machines, >500mL liquids, etc).

We deliver Australia-wide with these options (depends on the final destination - you can get a quote on the view cart page):

$3+ for Stamped Mail (typically 10+ business days, not tracked, only available on selected small items)
$7+ for Standard Post (typically 6+ business days, tracked)
$11+ for Express Post (typically 2+ business days, tracked)
Pickup - Free! Only available to customers who live in the Newcastle region (must order online and only pickup after we email to notify you the order is ready). Orders placed after 2PM may not be ready until the following business day.

Non-metro addresses in WA, NT, SA & TAS can take 2+ days in addition to the above information.

Some batteries (such as LiPo) can't be shipped by Air. During checkout, Express Post and International Methods will not be an option if you have that type of battery in your shopping cart.

International Orders - the following rates are for New Zealand and will vary for other countries:

$12+ for Pack and Track (3+ days, tracked)
$16+ for Express International (2-5 days, tracked)

If you order lots of gear, the postage amount will increase based on the weight of your order.

Our physical address (here's a PDF which includes other key business details):

Unit 18, 132 Garden Grove Parade
Adamstown
NSW, 2289
Australia

Take a look at our customer service page if you have other questions such as "do we do purchase orders" (yes!) or "are prices GST inclusive" (yes they are!). We're here to help - get in touch with us to talk shop.

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