1-8S Lipo Battery Voltage Tester & Low Voltage Buzzer Alarm
1-8S Lipo Battery Voltage Tester & Low Voltage Buzzer Alarm
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Short Product Description
Short Product Description
Protect your expensive lithium batteries from catastrophic over-discharging with this precision 1-8S Lipo Battery Voltage Tester. Whether you are an RC drone enthusiast, a STEM educator, or sourcing for enterprise engineering projects, this compact device delivers instant, highly accurate cell readings (+-0.01V). The loud built-in twin buzzer alerts you immediately when the voltage drops below your customized threshold. Secure your hardware with confidence, backed by over 20 years of trusted electronic expertise from our Sham Shui Po retail and technical team.
Key Features
Key Features
- Universal Compatibility: Supports 1S to 8S Lipo, Li-ion, LiMn, and Li-Fe batteries for maximum versatility across all your devices.
- Pinpoint Accuracy: Delivers highly precise voltage detection (+-0.01V) so you always know the exact health of your cells.
- Customizable Safety Thresholds: Adjustable alarm settings (2.7V - 3.8V) let you define the safety limits for different battery chemistries and workloads.
- Ultra-Loud Twin Buzzers: Emits an unmistakable audio warning paired with a red LED, preventing accidental over-discharge during operation.
- Auto-Save Functionality: Memorizes your custom voltage settings even after being disconnected, saving you setup time in the field.
- Compact & Lightweight Design: Weighing only a few grams, it easily mounts onto drones, RC cars, or circuit boards without affecting performance.
Full Product Description
Full Product Description
Prevent Battery Damage with Instant Voltage Tracking
Lithium polymer (Lipo) batteries are powerful but notoriously sensitive. Dropping below a safe voltage threshold can cause irreversible damage, swelling, or even fire hazards. This 1-8S Lipo Battery Voltage Tester is your first line of defense. By plugging your battery's balance lead directly into the pins, the bright LED display instantly cycles through individual cell voltages and the total pack voltage.
The Ultimate Guard Against Over-Discharge
You don't just need to know your battery's status; you need to be warned before it's too late. This device features a highly audible Low Voltage Buzzer Alarm designed to cut through ambient noise. Whether your drone is hovering in the distance or your custom STEM project is running continuously on the workbench, the dual buzzers and flashing red LED will ensure you never miss a critical voltage drop.
Customizable Alarms for Every Project
Different applications require different safety margins. The onboard push button allows you to easily customize the alarm threshold between 2.7V and 3.8V per cell, or turn it completely off. The device automatically saves your preference for the next use. It is fully compatible with Lipo, Li-ion, LiMn, and Li-Fe battery chemistries, making it a versatile staple for DIY hobbyists, professional electronics technicians, and institutional labs.
Reliable Local Technical Support
Procurement is easier when you have reliable partners. We understand the stringent requirements of both casual makers and enterprise clients. This tester is built for consistent accuracy and rugged daily use, fully supported by our comprehensive O2O shopping experience—buy online or pick up directly at our Sham Shui Po storefront.
Technical Specifications
Technical Specifications
- Supported Battery Types: 1–8S LiPo / Li-ion / LiMn / Li-Fe
- Voltage Detection Precision: ±0.01V
- Unit Voltage Display Range: 0.5V – 4.5V
- Total Voltage Display Range: 0.5V – 36V
- 1S Test Mode Voltage Range: 3.7V – 30V
- Alarm Threshold Range: OFF, 2.7V – 3.8V (pre-set at 3.3V)
- Alert Mechanism: Dual audible buzzers + red LED indicator
- Dimensions: 3.9 × 2.4 × 0.9 cm
- Package Contents: 1 × Voltage buzzer alarm
Delivery Options
Delivery Options
- Local delivery within Hong Kong and in-store pickup.
- Free shipping for orders of HK$400 or above; HK$35 shipping fee for orders below HK$400.
- Shipped by SF Express, usually dispatched the same day for orders confirmed before 6:00 PM (Mon–Sat).
- Estimated delivery time: 1–3 business days after dispatch (Hong Kong).
- In-store pickup details (location and time) will be confirmed by email or phone message.
- Delivery times are estimates and may be affected by weather or unforeseen circumstances.
FAQ Section
FAQ Section
Q. How do I adjust the low voltage alarm setting?
A. Simply press the small button located between the two black buzzers. Each press will adjust the target voltage threshold (from 2.7V to 3.8V, or OFF). The device will automatically save your selection.
Q. Does this tester require a separate power supply or battery to work?
A. No external power is required. The tester draws a microscopic amount of power directly from the battery you are testing via the balance lead.
Q. Can I use this for standard 18650 Li-ion battery packs?
A. Yes, as long as your 18650 battery pack is wired with a standard balance connector (JST-XH) from 1S up to 8S, this tester will read it perfectly.
Target Users / Applications
Target Users / Applications
- RC Drone, Airplane, and Car hobbyists requiring in-flight/on-track voltage monitoring.
- STEM students and educators building robotics (Arduino/Raspberry Pi integration).
- DIY electronics enthusiasts managing custom power banks or solar storage.
- Enterprise and engineering procurement teams needing reliable testing equipment for R&D labs.
