If i run it off of 3.3v, and use a lir2032 battery (which are listed as 3.6v), will it actually charge those batteries?

These are real-time clocks. Not chargers. Mine required 5vdc coming in.

Ds3231 Real Time Clock Module High Precision At24c32 Iic Rtc

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Description

⏳ Stay ahead of time, or risk falling behind!

BULK PACK ADVANTAGE - Get 5 high-precision RTC modules in one pack—ideal for prototyping, scaling, or sharing with your dev squad.
ROBUST I 2 C COMMUNICATION - Fast 400kHz I2C interface supports cascading multiple devices, perfect for complex Arduino and Raspberry Pi setups.
FLEXIBLE POWER COMPATIBILITY - Operates seamlessly on both 3.3V and 5V systems, powered by a standard CR2032 battery (not included) for uninterrupted timing.
INTEGRATED TEMPERATURE SENSOR - Built-in temp sensor ensures clock stability and compensates for environmental changes with ±3°C accuracy.
PRECISION TIMEKEEPING MASTERY - DS3231 chip delivers ultra-accurate time with just 1 minute drift per year—never miss a beat in your projects.

The DS3231 Real Time Clock Module is a high-precision, temperature-compensated RTC with integrated crystal oscillator and 32K AT24C32 memory. Compatible with 3.3V and 5V systems, it features a fast I2C interface and supports calendar alarms and leap year compensation up to 2100. Sold in packs of five, it’s perfect for Arduino, Raspberry Pi, and other microcontroller projects requiring reliable, accurate timekeeping.

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Brand	Wishiot
Package Dimensions	11.7 x 7 x 2.3 cm; 35 g
Item model number	LS1201X5
Manufacturer	Wishiot
Wireless Type	2.4 GHz Radio Frequency
Voltage	5 Volts
Are Batteries Included	No
Item Weight	35 g

DS3231 Real Time Clock Module High Precision AT24C32 IIC RTC Sensor for Arduino Nano Mega2560 Leonardo Raspberry Pi (Pack of 5)

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