SPIDER Automation CellMeter-8 Multi-Functional Digital Battery Capacity Checker & Servo Tester
Description
Keep your power packs healthy and your actuators perfectly calibrated with the SPIDER Automation CellMeter-8 Multi-Functional Digital Power Servo Tester. Building upon the success of the CellMeter-7, this upgraded version introduces vital professional features including an integrated multi-frequency servo tester, a built-in storage discharge function, and a high-visibility backlit LCD screen. Drone builders can instantly spin up motors to verify rotation directions without powering up a flight controller or receiver, while fixed-wing pilots can easily check servo throws and set exact neutral points. Essential for any hobbyist working with multi-cell battery packs, it delivers precise diagnostic data at the push of a button.
Key Features
- Comprehensive Battery Diagnostics: Measures individual cell voltages and total pack voltage while automatically indicating highest cell, lowest cell, and the voltage gap between them.
- Multi-Chemistry Compatibility: Works seamlessly with Lithium-based packs (LiPo, LiFe, Li-Ion from 2S to 8S via balance port) as well as NiMH and NiCd batteries via discharge plugs.
- Integrated Multi-Frequency Servo Tester: Supports multiple test frequencies (50Hz, 60Hz, 100Hz, 125Hz, 200Hz, 250Hz, 300Hz) and test ranges (1000–2000µs or 500–2500µs) for standard and narrow servos.
- Storage Discharge Function: Safely brings high-voltage lithium packs down to safe storage voltage levels with a balance discharge current up to 90mA per cell.
- High-Visibility Backlit Display: Clean graphical layout presents remaining battery capacity percentage (%) and vital metrics in an easy-to-follow format.
Benefits
- Instant Health Verification: Quickly diagnoses failing cells or unbalanced packs before deployment on the field or track.
- Eliminates FC Dependency: Lets you test motors and calibrate servos directly on your workbench without needing a receiver or flight controller setup.
- Extends Battery Lifespan: Built-in storage discharge capability protects expensive LiPo packs from premature degradation during long periods of inactivity.
- Precision Resolution: Offers high-accuracy measurements down to 0.001V for professional-grade battery management.
- Compact & Portable Field Tool: Lightweight (48g) pocket-sized profile fits easily into any flight box or mobile toolkit.
- User-Friendly Interface: Simple push-button navigation lets you toggle through display modes effortlessly.
Applications
- FPV Drone Building: Verifying motor rotation directions and testing ESC/motor responsiveness prior to flight controller configuration.
- RC Aircraft & Gliders: Checking control surface throws, centering neutral points, and matching multi-servo wings.
- Battery Maintenance & Storage: Monitoring individual cell voltages and discharging packs to safe storage levels after a day of flying.
- Car & Boat Workshops: Quick diagnostic checks for steering servo health and receiver pack voltages.
- Robotics Prototyping: Testing standard and narrow pulse-width actuators in custom automated mechatronics rigs.
- STEM & Electronics Labs: Teaching students battery chemistry safety, cell balancing principles, and PWM servo control.
Package Includes
- 1 x Cellmeter 8 Multi-Functional Digital Power Servo Tester
- 1 x User Manual
Specifications
| Parameter | Specification |
|---|---|
| Item Type | Digital Battery Capacity Checker & Servo Tester |
| Brand | SPIDER Automation |
| Model | CellMeter-8 |
| Enclosure Color | Blue |
| Supported Battery Types | LiPo, LiFe, Li-Ion (2S–8S), NiMH, NiCd |
| Test Precision | 0.001V (Battery Voltage) |
| Balance Discharge Current | 90mA x 8 Cells (Max. at Cell Voltage 4.2V) |
| Servo Test Frequencies | 50Hz, 60Hz, 100Hz, 125Hz, 200Hz, 250Hz, 300Hz |
| Servo Test Range | 1000–2000µs or 500–2500µs |
| Display Type | Backlit LCD Screen |
| Unit Dimensions (L x W x H) | 84 x 52 x 15 mm |
| Device Weight | 48 g |
| Shipping Weight | 0.053 kg |
















