Let Batteries Live Longer – Sonoff S31 with Tasmota for charge limiting
The post provides a detailed guide on how to modify a Sonoff S31 device to limit battery charging and extend the lifespan of lithium batteries commonly used in devices like phones, laptops, and tools. This DIY hack requires some soldering and code loading: it automates the turning off of device chargers before the battery reaches full charge. The modified S31 works independently and does not require a WiFi connection. The post also includes specific scripts for various devices and comprehensive steps for loading and testing these scripts.