SOONHUA 2S 2A Li-ion Battery Charger Module - Step Up Boost Charger Board for DIY Electronics, RC Drones, Solar Power Systems & Portable Devices

About this item Switching frequencies up to 1MHz, compensate for voltage loss in quasi‑CV mode. The internal resistance and tracking resistance of the battery are charged automatically. Protection battery voltage is lower than the input voltage and battery short circuit. Strong adaptability to the input power supply, driving capacity is limited over voltage protection battery. Version 8.4V of input voltage DC 3‑6V (DC 3.7V 5V is recommended).