Reliable multi-voltage solar charge controller designed to manage charging for 24 V, 36 V, 48 V, 60 V and 72 V battery pack systems. Ideal for a range of battery types, including lithium batteries, and built for continuous use in photovoltaic and solar-powered applications. Key benefits Broad compatibility: supports 24 V–72 V systems so one controller fits multiple battery pack configurations and reduces the need for different models. Versatile application: designed for general battery charging tasks—works with standard batteries and lithium batteries in household PV systems, solar street lighting and similar installations. Improved thermal performance: integrated fan with temperature‑controlled operation provides faster heat dissipation and helps maintain stable performance under load. Clear, simple monitoring: easy-to-read LCD interface displays charging parameters such as current and charging time, enabling straightforward status checks and basic troubleshooting. How it solves common problems Eliminates the hassle of matching controllers to different voltage systems by covering five common voltages in one unit. Helps maintain consistent charging performance in warm environments through active fan temperature control, reducing thermal stress on components. Offers immediate visibility into charging behavior via the LCD so you can spot issues early and confirm correct operation. Practical use scenarios Off‑grid home photovoltaic system: manage charging for a household battery bank (24 V to 72 V options) to store solar energy for lighting and appliances. Solar street lighting: power and maintain street or pathway lights with reliable thermal control for all-day operation and consistent nighttime performance. Equipment and battery workshops: use for charging and monitoring lithium battery packs or other battery types during testing, maintenance, or routine charging. What to expect Function: charge management for multiple battery voltages and battery chemistries (including lithium). Compatibility: explicitly supports 24 V, 36 V, 48 V, 60 V, and 72 V battery pack systems. Performance: fan-driven temperature control for faster heat dissipation and sustained operation under load. Interface: simple LCD display showing charging parameters such as current and charging time. A practical, multi-voltage solution for households, street lighting projects, and other solar battery applications where dependable charging and effective thermal control are important.