12V-48V Battery Capacity & Voltage Indicator

This compact Battery Capacity & Voltage Tester offers a convenient and reliable way to monitor the status of your battery. Featuring a durable black waterproof shell and a clear green backlit display, it allows you to easily read voltage and remaining battery capacity—even in low light. Designed for versatility, it supports 3–15 cell 3.7V lithium batteries, 12V–48V lead-acid batteries, and Fe batteries within a 6–63V range.

Switch between capacity display, voltage reading, or turn off the screen using the onboard button. The device enters sleep mode after 10 seconds of inactivity to conserve power. With reverse polarity protection and simple wiring, it's safe and easy to install. Its wide application includes use in cars, motorbikes, e-bikes, scooters, solar setups, power banks, and other battery-powered systems.

Specifications:

• Color: Black
• Backlight: Green
• Voltage Range: 6–63V (reliably 12V-48V)
• Current Draw: 5–6mA
• Supported Battery Types: 3.7V Li-ion (3–15S), Lead-acid (12V/24V/36V/48V), Fe batteries
• Dimensions: 61.3 x 33.3 x 13.5mm
• Mounting Hole Size: 58 x 28.1mm
• Wire Length: 30cm

Package Includes:

• 1 x Battery Capacity & Voltage Tester
• 1 x Connection Cable (JST-PH)

Ideal for quick diagnostics and ongoing monitoring of battery-powered systems.

Note: Not all batteries have the same polarity. Check before plugging in any batteries.

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