The first Quick Solution is the PM2.5 monitor. PM2.5 stands for Particulate Matter smaller than 2.5 microns which are particularly harmful to the lungs. The PM2.5 monitor with portable battery is based on the RL78/L12 series, the ISL97656 and ISL6294. This Quick Solution fulfills all the customer’s needs such as having an extended battery life, creating a portable device with a lower BOM cost, and flexibility for a user-friendly development. The PM2.5 monitor solution is an energy savings reference solution that helps to reduce power consumption as RL78/L12 MCU series can drive an LCD with lower power consumption. Both RL78/L12 MCU and battery charger IC ISL6294 have various built-in features that reduce the need for external components and enable a smaller PCB to be built. This will not only reduce total BOM cost but also to enable portable designs to be developed. This optimal combination of Renesas MCU, DC/DC converter IC and battery charger IC enables design flexibility that makes it easy for the designer to customize the designs.