12V/24V/36V/48V Voltage Battery Charge Indicator Board 18650 Li-ion Lipo Lithium Battery Level Indicator Capacity Tester Meter _x000D_ _x000D_ Features: 1. LED real-time power display, clear at a glance: this power indicator board adopts a high brightness LED display, which can clearly and intuitively display the voltage and the remaining battery capacity 2. Customized high and low voltage settings, flexible to adapt to various needs: Users can freely set the high and low voltage thresholds according to the actual application scenarios and personal preferences. 3. backlight time setting, energy saving and environmental protection: built-in adjustable display backlight time setting function allows users to adjust the backlight duration according to the ambient light and personal habits, prolonging the service life of the battery indicator board. 4. Power failure memory, data never lost: with powerful power failure memory function, even in the case of accidental power failure, it can automatically save the current power information and other important settings. 5. Widely compatible with a variety of battery types, strong applicability: designed for lithium ternary batteries, lithium iron phosphate batteries and acid batteries, suitable for electric vehicles, energy storage systems, and a wide range of industrial and civil fields. _x000D_ Parameter: Voltage measurement range: DC 7-55V (red display: DC 7-40V) Working current: ≤20mA Display mode: LED screen Display color: red, green, blue, white (optional) The first time the product is powered on the default ternary lithium L03S voltage (L03) Li-ion ternary battery L measurement: 3S ~ 12S Lithium iron battery F measurement: 3S ~ 14S Acid battery P measurement: 12V/24V/36V/48V Product size: 46*15*3mm _x000D_ Package include: 1 x DC 7-55V LED Indicator Voltage Battery Charge Indicator Acid Battery Lithium Battery Universal Battery Charge Indicator Panel _x000D_ _x000D_