Monitor battery health, charging status, estimated battery level, and power consumption. Track battery drain rate over time and verify battery API functionality. Useful for mobile web app developers and power management optimization.
Modern smartphones use lithium-ion batteries with typical capacities of 2000-5000 mAh. Battery health degrades over time, with most batteries retaining 80% capacity after 500 charge cycles. This tester helps you monitor your battery's current health and power consumption patterns.
Start with the live tester below. Supporting details, FAQs, and troubleshooting guidance are placed after the tool so the main action is easier to find and use immediately.
Monitor battery drain rate, charging status, and power consumption.
Common problems
If the live tester does not behave as expected, these are the first checks most users should try before assuming the hardware is broken.
Test on mobile device - battery API not available on desktop
Monitor battery level over time
Check charging status
Test with different apps running
Monitor battery health, charging status, estimated battery level, and power consumption. Track battery drain rate over time and verify battery API functionality. Useful for mobile web app developers and power management optimization.
Modern smartphones use lithium-ion batteries with typical capacities of 2000-5000 mAh. Battery health degrades over time, with most batteries retaining 80% capacity after 500 charge cycles. This tester helps you monitor your battery's current health and power consumption patterns.
Test mouse buttons, scroll wheel, pointer tracking, and touch input.
Test your microphone input levels in real-time. Verify microphone is working.
Test your speakers or headphones with reference tones.
Test your webcam, verify camera works, and check framing.
Helpful questions
Use these answers to understand results, browser limitations, permissions, and sensible next troubleshooting steps.
Open the live battery health test on this page and follow the prompts shown in the tester area. The tool runs directly in your browser, so you can check your device without installing additional desktop software or signing in.
Check browser permissions, confirm the device or browser feature is enabled, and reload the page if needed. Many browser-based testers depend on permission prompts, secure context support, or hardware access that must be approved before the test can run fully.
Battery health monitoring - track battery condition. It can help you confirm whether the issue is caused by the hardware itself, a browser permission setting, or a system configuration problem before you spend more time debugging.