Red LED Battery Capacity Indicator Module - DIY Display Board Power Level Tester for Li-ion, Lipo, Lead Acid, NiMH Batteries (2.4V‑20V Range, 45x14mm)

Power: bar display full brightness 42ma, single light shows 4ma Measuring range: the battery inside the common 2.4-20v Color: Red Display: Multi-light bar display or a single light dot display pcb board size: 45 * 14 mm Suitable for lithium batteries, lead-acid batteries and other power batteries need to be displayed Power adjustable display range for the battery discharge curve of a scientific setting, direct support: single lithium 1S (4.2V) ~ 4S (16.8V), lead acid 6V ~ 12V, NiMH 3.6V ~ 18V, nickel-cadmium batteries 3.6V ~ 18V

• Wide Voltage Compatibility:​ This green LED indicator module supports a broad voltage range of 2.4V to 20V, making it suitable for monitoring the power level of various battery types including Li‑ion, Li‑po, lead‑acid (6V/12V), NiMH, and Ni‑Cd batteries.
• Dual Display Modes:​ Features both multi‑segment bar-graph display and single‑dot display modes to visually indicate remaining battery capacity. The bright green LEDs provide clear, easy‑to‑read status feedback for your DIY projects or battery packs.
• Compact & Easy to Integrate:​ The PCB board measures only 45mm x 14mm, offering a compact and space‑saving design. It is an ideal DIY kit for integrating into custom battery packs, portable devices, solar systems, or electronic prototypes.
• Low Power Consumption & Scientific Calibration:​ Operates with low current draw (full bar display ~42mA, single LED ~4mA). The display thresholds are scientifically set based on typical battery discharge curves, providing a reliable and intuitive representation of remaining capacity.
• After sales service: The product comes with a one-year after-sales service. If you have any questions, please feel free to contact us at any time.