DC 7-55V Battery Level Indicator – 3S-14S Lithium & Lead-Acid
A1
$10.90
Sale price
$10.90
Regular price
$13.50
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DC 7-55V Battery Level Indicator – 3S-14S Lithium & Lead-Acid
$10.90
Sale price
$10.90
Regular price
$13.50
Keep a precise eye on your battery's charge status with this compact, versatile DC 7–55V Battery Level Indicator Board. Compatible with ternary lithium, lithium iron phosphate (LiFePO4), and lead-acid batteries across 3S–14S configurations, this LED indicator is an essential monitoring tool for electric vehicles, solar setups, DIY battery packs, and more. Made in Mainland China.
Key Features
- Low Voltage Alert: A flashing red lightning symbol instantly signals when your battery is critically low — helping you avoid unexpected shutdowns.
- Custom Voltage Thresholds: Set your own high and low voltage limits to accurately define full-charge and fully-discharged levels for your specific battery type.
- Adjustable Backlight Timer: Built-in display backlight with configurable timer — choose constant-on or auto-off timed mode to conserve energy.
- Power-Off Memory: Automatically saves charge data during unexpected power interruptions so you never lose your settings.
- Wide Battery Compatibility: Supports ternary lithium (3S–12S), lithium iron phosphate (3S–14S), and lead-acid batteries (12V / 24V / 36V / 48V).
- Compact Form Factor: Ultra-slim at just 40 × 15 × 3 mm — fits easily into panels, enclosures, and custom battery builds.
Specifications
| Voltage Measurement Range | DC 7–55V (Red display: DC 7–40V) |
| Operating Current | ≤ 20mA |
| Display Type | LED |
| Display Colors | Red, Green, Blue, White (optional) |
| Default Power-Up Mode | L03S Ternary Lithium Battery (L03) |
| Ternary Lithium (L) Range | 3S – 12S |
| Lithium Iron Phosphate (F) Range | 3S – 14S |
| Lead-Acid (P) Range | 12V / 24V / 36V / 48V |
| Product Size | 40 × 15 × 3 mm |
| Material | Plastic + Metal |
| Country of Origin | Made in Mainland China |
What's in the Box?
- 1 × Battery Level Indicator Board
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For more information on battery safety and handling, refer to the U.S. Consumer Product Safety Commission's guide on rechargeable batteries.
Note: Actual product color may vary slightly from images due to monitor brightness and ambient lighting. Please allow for minor measurement tolerances.
Learn more: MagSafe (wireless charger)
Frequently Asked Questions
Q: What battery types are compatible with this DC 7-55V battery level indicator?
A: This battery level indicator supports ternary lithium batteries (3S–12S), lithium iron phosphate / LiFePO4 batteries (3S–14S), and lead-acid batteries at 12V, 24V, 36V, and 48V configurations — making it widely compatible with electric vehicles, solar storage, and custom battery packs.
Q: Can I customize the voltage thresholds on this battery charge indicator?
A: Yes! The indicator features adjustable high and low voltage threshold settings, allowing you to define exactly what constitutes a "full" or "empty" charge for your specific battery chemistry and cell count.
Q: Will the indicator retain my settings if power is unexpectedly cut?
A: Absolutely. The built-in Power-Off Memory function automatically saves your current charge data and custom settings even during unexpected power interruptions, so you won't need to re-configure each time.
Q: What does the flashing red lightning symbol mean?
A: The flashing red lightning symbol is a low-voltage alert. It activates when your battery charge drops to a critically low level, giving you a clear visual warning to recharge or replace the battery before a shutdown occurs.