2S–8S Battery Level Indicator & Voltage Meter Module 5–30V
2S–8S Battery Level Indicator & Voltage Meter Module 5–30V
2S–8S Multi-Chemistry Battery Level Indicator & Voltage Meter Module
Keep a precise eye on your battery's charge status with this compact LED battery level indicator and voltage meter module. Compatible with LiPo, Li-ion, 18650 lithium, lithium iron phosphate (LiFePO4), and lead-acid battery packs ranging from 2S to 8S (5V–30V DC), this versatile tester module is an essential addition to any electronics workbench, DIY power project, or RC/EV application.
Made in Mainland China.
Key Features
- Wide Compatibility: Supports 2S–8S LiPo, Li-ion, 18650, lithium ternary, lithium iron phosphate, and lead-acid battery packs.
- Multi-Color LED Display: Instantly identifies your battery chemistry — Red = lithium ternary, Green = lithium iron phosphate (LiFePO4), Yellow = lead-acid.
- Fast Refresh Rate: Updates battery status every 500ms for near real-time monitoring.
- Ultra-Low Power Draw: Working current under 10mA — won't noticeably drain your battery during monitoring.
- Easy Button Configuration: Press-and-hold interface lets you select battery type and string count in seconds; auto-saves and returns to display mode after 5 seconds of inactivity.
- Slim & Lightweight: Compact 46mm × 15mm × 3mm form factor fits neatly into enclosures, panels, or custom builds.
- 4-Level Power Status Display: At a glance, see which of the four charge-level LEDs is lit to understand remaining capacity.
Technical Specifications
- Working Voltage: DC 5V – 30V
- Working Current: <10mA
- Display Mode: LED indicator (multi-color)
- Refresh Speed: 500ms / reading
- Dimensions: 46mm × 15mm × 3mm
- Battery Type Support: 2S–8S LiPo / Li-ion / 18650 / LiFePO4 / Lead-Acid
- Condition: New
How to Configure
- Enter Setting Mode: Press and hold the button for 2 seconds. The mode indicator (battery type LED) will flash; the string number LED stays on. Briefly press to cycle through battery types.
- Confirm Battery Type: Press and hold for 2 more seconds to advance to the string number / voltage setting step (mode LED stays on, string number LED flashes).
- Set String Number / Voltage: Briefly press to step through the available string number or voltage options. Refer to the setting table for your specific configuration.
- Save Settings: Press and hold for 2 seconds to save and return to the 4-level power status display, or wait 5 seconds for auto-return.
- Auto-Timeout: If no button is pressed within 5 seconds during setup, the module automatically returns to normal display mode.
Perfect For
- RC vehicles, drones, and robotics
- DIY power banks and portable battery packs
- Solar energy storage systems
- Electric bikes, scooters, and EV projects
- Electronics workbench testing and prototyping
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Frequently Asked Questions
Q: Which battery types does this battery level indicator module support?
A: This module supports 2S–8S LiPo, Li-ion, 18650 lithium ternary, lithium iron phosphate (LiFePO4), and lead-acid battery packs operating within 5V–30V DC. The LED color indicates the battery chemistry: Red for lithium ternary, Green for LiFePO4, and Yellow for lead-acid.
Q: How do I know how much charge is remaining with this voltage meter module?
A: The module displays 4 LED segments representing charge level. As the battery discharges, LEDs turn off one by one, giving you a quick visual readout of remaining capacity. The display refreshes every 500ms for near real-time accuracy.
Q: Can I install this battery indicator module into a custom enclosure or panel?
A: Yes! At just 46mm × 15mm × 3mm, this slim module is designed for easy integration into battery panels, RC vehicle dashboards, DIY power bank enclosures, and other compact builds. Its low 10mA working current also means minimal impact on your overall battery system.
Q: How do I set the correct battery string number on the module?
A: Press and hold the button for 2 seconds to enter setting mode, select your battery type with a brief press, then press and hold again for 2 seconds to enter the string number setting. Briefly press to cycle to the correct string count, then press and hold for 2 seconds to save — or the module saves automatically after 5 seconds of inactivity.