10PCS Voltage Boost Module 3.7V To 5V/8V/9V/12V - Mini Step Up Board With LED Indicator

About This Product

If you're into electronics projects and need to boost voltage from those common 3.7V lithium batteries, these little boost modules are absolute game-changers! Each tiny board measures just 22x11x3.6mm but packs serious capability - they can take input from 2.5V up to just below your output voltage and boost it to 5V, 8V, 9V, or 12V (comes set to 12V by default). The max current is 1.5A, so with a typical 3.7V lithium battery you're looking at outputs like 5V at 1.2A, 8V at 0.7A, 9V at 0.6A, or 12V at 0.5A. Changing the output voltage is done by soldering the A and B pads in different combinations, which is actually pretty straightforward once you get the hang of it. The LED indicator is handy for knowing when power is flowing, but you can even disable that if you want to save a tiny bit of power. I've used these in various projects from portable phone chargers to LED lighting systems, and they're surprisingly efficient for their size. The 10-piece pack means you'll have plenty for multiple projects or backups when (let's be honest) you accidentally fry one while experimenting. Whether you're building custom power supplies, robotics projects, or any DIY electronics that need voltage conversion, these compact boost modules deliver reliable performance without taking up much space. Just remember to keep those input and output currents within the 1.5A limit!