Car battery voltage and power display USB supports multi-protocol fast charging 12v24v supports lithium battery -75462
product detail
Product parameters
? Input voltage: DC6V-30V (Note: The USB port is a step-down power supply. If your input voltage is less than 12V, you cannot support 12V fast charge, and the same is true for 9V fast charge)
? Battery display: 7-segment display-13% 26% 39% 52% 65% 78% 91%
? Output voltage: 5V by default, automatically adjusted between 3-12V after triggering fast charge
? Output power: up to 24W (5V @ 4A, 9V@2.5A, 12V @ 2A, etc.)
? USB efficiency: 90% -97%
? Supports multiple fast charge protocols
? Input anti-reverse protection
? Output overcurrent, short circuit protection
? Working temperature: -10 ℃ - 60 ℃
? Operating humidity: 10-80% (non-condensing)
Installation size: 75mm * 39mm
Battery description
Please select the corresponding option according to the type of your battery and the number of cells in series. Ordinary lithium batteries and ternary lithium batteries are generally nominally 3.7V / cell and fully charged to 4.2V. The lithium-ion battery is generally nominally 3.2V / cell and fully charged with 3.7V. Lead-acid batteries are generally rated at 12V / block and are charged at 13.8V-14.5V.
Ternary lithium battery
The battery voltage is greater than N × 3.21V + -1%, and the power is on for 1 grid (Note: N is the number of battery cells, N = 2-7)
Battery voltage is greater than N × 3.31V + -1%, 2 grids light
Battery voltage is greater than N × 3.48V, + -1% bright 3 cells
Battery voltage is greater than N × 3.61V + -1%, 4 grids light
Battery voltage is greater than N × 3.73V + -1%, bright 5 cells
Battery voltage is greater than N × 3.86V + -1%, with 6 cells on
Battery voltage is greater than N × 3.97V + -1%, 7 grids light
Lithium iron phosphate battery
The battery voltage is greater than N × 2.72V + -1%, and the power is on for 1 grid (Note: N is the number of battery cells, N = 2-8)
The battery voltage is greater than N × 2.81V + -1%, and the power is on for 2 grids
Battery voltage is greater than N × 2.90V, + -1% bright 3 cells
Battery voltage is greater than N × 2.98V + -1%, 4 grids light
The battery voltage is greater than N × 3.07V + -1%, and the power is 5 grids.
The battery voltage is greater than N × 3.16V + -1%, and the power is 6 cells.
Battery voltage is greater than N × 3.24V + -1%, 7 grids light
12V lead-acid battery
The battery voltage is greater than N × 10.8V + -1%, and the power is on for 1 grid (Note: N is the number of battery cells, N = 1-2)
Battery voltage is greater than N × 11.2V + -1%, with 2 cells
Battery voltage is greater than N × 11.5V, + -1% bright 3 cells
The battery voltage is greater than N × 11.8V + -1%, and the power is 4 grids.
The battery voltage is greater than N × 12.2V + -1%, and the power is 5 grids.
Battery voltage is greater than N × 12.5V + -1%, bright 6 cells
The battery voltage is greater than N × 12.8V + -1%, and the power is 7 cells.
Key function description
1.Control the backlight