YB28VE-W Digital Voltage and Battery Capacity Tester

YB28VE-W Universal Tester/Indicator for Lithium Batteries and Lead-Acid Accumulators

The display of capacity percentage and voltage allows you to monitor the condition of the electrical device. With a clear LCD display, the low performance warning function can accurately and timely check the battery status. Equipped with reverse polarity protection. Wide range of applications, such as golf/fairway carts, electric vehicles, and other types of electrical devices. Suitable for lithium and lead-acid batteries.

• The display can simultaneously show voltage and percentage of capacity.
• Can measure an adjustable voltage range of 6-120 V.
• Waterproof and easily connected with only two wires.

Warning: The meter is set to 12 V by default. To set the battery type, please follow the instructions below. Without the correct settings, the meter will not function properly!

Installation and Setup:

1. Connect (red to + and black to -)
2. Press the button for a few seconds to enter setup mode: from 1-U, 2-b, 3-C to 4-d.
• 1-U: Voltage calibration
• 2-b: Battery type setting
• 3-C: Battery count setting
• 4-d: Display mode setting
3. 1-U: Voltage Calibration: When in 1-U mode, press the button to enter voltage calibration mode, release it and press again, the voltage will increase; release the button and then press to decrease the voltage; repeat and save the current setting until the display blinks.
4. 2-b: Battery Type Setting: When in 2-b mode, press the button to change the battery type; hold to cycle through: 1.2V__3.2V__3.7V__12V (when setting the appropriate battery type, release the button, save the current setting when the display blinks).
• 1.2 V: Ni-MH Battery, each battery 1.2V
• 3.2 V: Lithium Iron Phosphate Battery, each battery 3.2V
• 3.7 V: Lithium Polymer Battery, each battery 3.7V
• 12 V: Lead-Acid Battery, each battery 12V
5. 3-C: Battery Count Setting:
• In "3-C" mode, press the button to enter the battery count setting.
• Release the button and press again to increase the value; release the button and then press to decrease the setting; repeat the setting to the corresponding battery count.
• Number of cells for different battery types:
• 12 V Lead-Acid Battery: 1-10 cells
• 3.7 V Lithium Polymer Battery: 2-28 cells
• 3.2 V Lithium Ion Battery: 2-32 cells
• 1.2 V Ni-MH Battery: 10-70 cells
• Set to the appropriate mode, save the current setting until the display blinks.
6. 4-d: Display Mode Setting

• In "4-d" mode, press the button to enter display mode settings.
• Release the button, press it once, one mode will be displayed: V is voltage, % is percentage of power (these two data will display cyclically)
• Set to the appropriate mode, save the current setting until the display blinks.

Setup Patterns:

Technical Specifications:

• Model: YB28VE-W
• Voltage measurement range: DC6~120 V, maximum input voltage must not exceed 120 V
• Test voltage: DC6~120 V (automatic decimal point arrangement)
1. Minimum resolution under 100 V: 0.1 V
2. Minimum resolution 100 V: 1 V
• Energy resolution: 1 %
• Operating current: < 20 mA
• Display type: LED
• Dimensions: D 54 x W 30 x H 21 mm (2.13 x 1.18 x 0.83 in)
• Installation hole: 47.2 x 27.3 mm (1.86 x 1.07 in)
• Measurement speed: more than 500 ms/time
• Measurement accuracy: 1 % (+/-2 digits)
• Cable length: >150 mm
• Minimum power supply voltage: +6 V
• Maximum power supply voltage: +120 V
• Operating temperature: -10 °C ~ +50 °C (14 °F ~ 122 °F)
• Working humidity: 10 ~ 80 % (non-condensing)