5-30V Battery Capacity & Voltage LCD Indicator Module

Accurate Battery Status at a Glance

This 5-30V Battery Capacity & Voltage LCD Indicator Module is designed for clear, reliable monitoring of lithium and lead-acid battery systems. Supporting a wide voltage range from 5V to 30V, it provides real-time information on battery voltage and charge level, helping you protect and maintain batteries in automotive, marine, solar, and DIY power applications.

The compact 46 × 15 × 3 mm module features an easy-to-read display and low working current (<10 mA), making it suitable for continuous or intermittent monitoring. A multi-color LED indicator identifies the configured battery chemistry at a glance: red for lithium ternary, green for lithium iron phosphate (LiFePO4), and yellow for lead-acid batteries. Adjustable settings allow you to match the indicator to your battery type and series count (2S and above), ensuring accurate capacity estimation.

Configuration is handled via a single button: press and hold to enter setup, then cycle through battery type and series/voltage parameters. The module automatically saves your settings and returns to normal display. Auto power-off and low-power modes help reduce energy consumption, while the 500 ms refresh rate keeps readings current for dependable diagnostics.

Why It's a Smart Choice

• Wide 5-30V compatibility - Works with 2S+ lithium and lead-acid systems across automotive, marine, solar, and backup power setups.
• Clear multi-color indication - LED color coding for different chemistries helps avoid configuration errors and speeds up checks.
• Low-profile, low-power design - Slim 46 × 15 × 3 mm form factor and <10 mA working current suit panel mounting and mobile applications.

FAQ

Q: Which battery types does this module support?
A: It supports lithium ternary, lithium iron phosphate (LiFePO4), and lead-acid batteries within a 5-30V system range (2S and above).

Q: How do I select the correct battery type and series count?
A: Press and hold the button for about 2 seconds to enter setup, briefly press to choose the battery type, then press and hold again to adjust series/voltage. Hold once more to save and return to normal display.

Q: Does the module consume much power when not in use?
A: No. It draws less than 10 mA during operation and automatically turns off the display after a period of inactivity to enter a low-power state.

Q: Can I use it in vehicles or boats?
A: Yes. It is suitable for 12V/24V vehicle, boat, and RV systems, as long as the operating voltage is within 5-30V and the correct battery type is configured.