Car Storage Battery Voltage Display Meter Lithium Battery Meter Gauge Input Voltage DC6V-30V ZK-BC

Car Storage Battery Voltage Display Meter Lithium Battery Meter Gauge Input Voltage DC6V-30V ZK-BC

Attention:
- The power meter supports 12V battery mode by default. Other specifications of batteries need to be set by panel button.
- USB fast charge ports require the cooperation of a mobile phone, and it cannot be activated every time. When they are not activated, please try again later. IP6505T chip is used and the circuit is recommended by the manufacturer. The chip supports mainstream fast charge protocols, but cannot support all the fast charge protocols on the market. Because fast charge is related to many factors such as mobile phone data cables, mobile phone models, mobile phone power, and protocol matching degree, it cannot guarantee that every mobile phone can be charged by our device or it can be charged fast every time.
- Batteries and other items pictured are not included.
- Certain electronic knowledge is required for application.
- Please note that it is not for medical, life saving, life support and other purposes. It cannot be used in hazardous places such as coal mine, oil depots.

Features:
- Display voltage / electric quantity / battery percentage
- Support multiple batteries. Battery types and battery string can be set (Default 12V lead-acid battery)
- Input reverse connection protection. Reverse connection will not make the module burnt
- Dual independent USB ports, using IP6505T fast charge recognition chip, support for QC2.0 / QC3.0 / FCP / SCP / MTK / APPLE and other mainstream fast charge protocols

Specifications:
- Input Voltage: DC6V-30V (Note: The USB port is a step-down power supply. If your input voltage is less than 12V, it cannot support 12V fast charge, as is the case with 9V fast charge.
- Battery Display: 7-segment display, namely, 13%, 26%, 39%, 52%, 65%, 78%, and 91%
- Output Voltage: 5V by default, automatically adjusted between 3-12V after triggering fast charge
- Output Power: Maximum 24W (5V @ 4A, 9V@2.5A, 12V @ 2A, etc.)
- USB Efficiency: 90% -97%
- Support multiple fast charge protocols
- Input anti-reverse protection
- Output over-current and short-circuit protection
- Working Temperature: -10℃ to 60℃    
- Operating Humidity: 10-80% (non-condensing)        
- Installation Size: 75mm * 39mm   

Package Included:
- 1 x Battery Voltage Display

Battery Selection Instructions:
Please select the corresponding option according to the type of your battery and the number of cells in series or in parallel. Ordinary lithium batteries and ternary lithium batteries are generally nominally 3.7V / cell and fully charged to 4.2V. Lithium-ion battery is generally nominally 3.2V / cell and fully charged to 3.7V. Lead-acid batteries are generally rated at 12V / block and are charged at 13.8V-14.5V.

Ternary Lithium Battery:
- Battery voltage is greater than N × 3.21V + -1%, 1 grid lit (Note: N is the number of batteries. N = 2-7)
- Battery voltage is greater than N × 3.31V + -1%, 2 grids lit
- Battery voltage is greater than N × 3.48V + -1%, 3 girds lit
- Battery voltage is greater than N × 3.61V + -1%, 4 grids lit
- Battery voltage is greater than N × 3.73V + -1%, 5 grids lit
- Battery voltage is greater than N × 3.86V + -1%, 6 grids lit
- Battery voltage is greater than N × 3.97V + -1%, 7 grids lit

Lithium Iron Phosphate Battery:
- Battery voltage is greater than N x 2.72V + -1%, 1 grid lit (Note: N is the number of battery cells. N = 2-8)
- Battery voltage is greater than N x 2.81V + -1%, 2 girds lit
- Battery voltage is greater than N x 2.90V + -1%, 3 grids lit
- Battery voltage is greater than N x 2.98V + -1%, 4 grids lit
- Battery voltage is greater than N x 3.07V + -1%, 5 grids lit
- Battery voltage is greater than N x 3.16V + -1%, 6 grids lit
- Battery voltage is greater than N x 3.24V + -1%, 7 grids lit

12V Lead-acid Battery:
- Battery voltage is greater than N x 10.8V + -1%, 1 grid lit (Note: N is the number of battery cells. N = 1-2)
- Battery voltage is greater than N x 11.2V + -1%, 2 grids lit
- Battery voltage is greater than N x 11.5V + -1%, 3 grids lit
- Battery voltage is greater than N x 11.8V + -1%, 4 grids lit
- Battery voltage is greater than N x 12.2V + -1%, 5 grids lit
- Battery voltage is greater than N x 12.5V + -1%, 6 grids lit
- Battery voltage is greater than N x 12.8V + -1%, 7 grids lit

Functions of Panel Button:
1.Control the backlight: Short press to turn the backlight on or off
2.Set battery type and number of strings (Only when the battery type and number of strings are set, it can be displayed correctly)
- Press and hold the button for more than 3 seconds to switch to battery selection interface. In the battery type interface, short press to select the battery type.
    Pb12V: 12V lead-acid battery
    Li 3.7V: Ternary lithium battery
    Fe3.2V: Lithium iron phosphate battery
- After the selecting battery type, press and hold the button for more than 3 seconds to switch to the number interface for selecting battery string. In the battery string number interface, short press to select the battery string number NS (N stands for string number)
     For 12V lead-acid battery: N = 1/2
     For ternary lithium battery: N = 2/3/4/5/6/7
     For lithium iron phosphate battery: N = 2/3/4/5/6/7/8
3. After selecting the number of battery strings, press and hold the button for more than 3 seconds to return to the normal interface.

Selection Interface for Battery Types:  


Selection Interface for Battery Strings: