What this does for you Monitors battery condition at a glance with a bright LED indicator so you know charge status before devices fail. Triggers a lowvoltage alarm when capacity drops below 10% to prevent unexpected shutdowns and reduce deepdischarge damage. Lets you set precise and low voltage thresholds for charging and discharging cycles, so the indicator matches your battery management strategy. Key features and benefits Multichemistry compatibility: Designed for ternary lithium and acid batteries, making it suitable for a wide range of systems from small electronics to vehicle batteries. protection: Configure /low voltage cutoffs to protect cells during charging and discharging, helping extend battery life and improve safety. Clear visual feedback: LED indicator delivers immediate status updates, ideal for quick checks in noisy or lowlight environments. Simple operation: Intuitive button control provides fast access to settings and display adjustments without complex menus. How it solves common problems Prevents surprise power loss by alerting you well before critical levels. Reduces the risk of battery damage from overdischarge or incorrect charging by letting you define safe voltage limits. Saves time and downtime with a compact, easytouse monitor instead of guesswork or frequent manual testing. Practical applications Automotive: Monitor starter or auxiliary batteries in cars, trucks, and recreational vehicles to avoid being stranded with a dead battery. Electronics and DIY projects: Keep track of ternary lithium packs used in portable devices, RC models, or custom power banks. Backup power systems: Use with acid or lithium batteries in small backup setups to ensure reliable operation and timely maintenance. Performance and compatibility notes Function: LED display with selectable /low voltage settings and a lowvoltage alarm at below 10%. Compatibility: Works with ternary lithium and acid battery chemistries across a range of consumer and automotive uses. Controls: Singlebutton interface for quick configuration and status checks. This indicator gives clear, configurable monitoring that helps you prevent failure, protect battery life, and tailor battery management to your specific application.