The Longevity Guide—Use It Like This, and Your SMTK Battery Can Last 10 Years

Even a top-tier battery can have its lifespan shortened by improper use. Follow these three rules to help your SMTK battery live longer:

1. Eliminate “Starvation Mode”: Strictly avoid keeping the battery in a chronically undercharged state (voltage <12V). If the project site experiences consecutive rainy days exceeding the design allowance, consider manually turning off the street light for a few days to let the battery recover. SMTK batteries support trickle charging, allowing for slow current top-ups even under weak light—something gel batteries cannot do.
2. Prevent Summer “Heat Stroke”: NSW summers are hot, with battery compartment temperatures potentially reaching 60°C. While LiFePO4 batteries are heat-resistant (up to 55°C), it’s recommended to add a 1cm thick insulation pad inside the battery compartment, or opt for a white housing (available as an SMTK option) to reflect heat.
3. Regular “Check-ups”: Every six months, use the app or a multimeter to check the resting voltage (should be around 13.6V when fully charged). If you notice a significant capacity drop, it might be due to dust-covered solar panels causing chronic undercharging; clean the solar panels first.