ITEM NAME:12V LCD Acid Lead Lithium Battery Capacity Indicator Voltage Tester Voltmeter @ Description Specification: Brand new Cable length: approx. 300mm Display: Power, Voltage, Close, the key for cycle. Voltage Range: 6-63V, products will display based on the voltage value, voltage fluctuations, power meter will be follow as the voltage fluctuation. (Comes with reverse polarity protection, can be guarantee use effectively ) LCD display, easy to read. Easy to use. Stable and durable. Suitable for lead-acid 12V, 24V, 36V, 48V (can be changes via key) Suitable for 3.7V lithium series multi-platform, 3 string, 4 string, 5 string, 6 string, 7 string 8 string, 9 string, 10 string, 11 string, 12 string, 13 string, 14 string and 15 string. Instructions: 1. Press and hold switch on the product, power on, automatically select the interface (please follow as the code corresponds blow). 2. Select your battery type after corresponding, for example 3 series lithium battery, you need to enter the selection screen, press the key point to for L3 interface, then off, re-energized, choose success, such as the need to set 12V lead-acid batteries, the key point press to P12V interface, power, re-energized, both choose success. 3. Instruments can be used if you Select successful. Â Meter shows the power interface, tap switch, switch to voltage interface, click the switch, turn off the meter. cycle shown as the code corresponds. Code: Suitable for L3: 3 string lithium L4: 4 string lithium L5: 5 string lithium L6: 6 string lithium L7: 7 string lithium L8: 8 string lithium L9: 9 string lithium L10: 10 string lithium L11: 11 string lithium L12: 12 string lithium L13: 13 string lithium L14: 14 string lithium P12V: 12V lead-acid P24V: 24V lead-acid P36V: 36V lead-acid P48V: 48V lead-acid Package included: 1 x 12V Battery Capacity & Voltage Tester 1 x Cable Note: Please allow 1-5mm errors due to manual measurement. Item color displayed in photos may be showing slightly different on your compu.Suitable for 3.7V lithium series multi-platform, 3 string, 4 string, 5 string, 6 string, 7 string 8 string, 9 string, 10 string, 11 string, 12 string, 13 string, 14 string and 15 string. Select your battery type after corresponding, for example 3 series lithium battery, you need to enter the selection screen, press the key point to for L3 interface, then off, re-energized, choose success, such as the need to set 12V lead-acid batteries, the key point press to P12V interface, power, re-energized, both choose success.