In every electric mobility vehicle or equipment, a good battery is the most important characteristic. That’s why NIU provides a two-year battery life guarantee, but it should take closer to three years to detect a change. Let’s break it down: Every NIU kick scooter battery is rigorously tested to assure that you’ll get 500 charging cycles before noticing a change in your regular usage. Using the KQi3 Pro as an example, with a range of 30 miles, a daily commute of 5 miles, and charging every three days, 500 charging cycles may last 1500 days – 4 years! You can quickly access all of the information regarding your battery and charging cycles in the NIU app, a valuable and transparent feature that no other manufacturer offers.