Cellmeter 8 Digital Battery Checker and Servo Tester

The Cellmeter 8 is a pocket battery checker and servo tester for the field and the workbench. Plug a pack's balance lead in to read every cell at a glance, then switch modes to test servos or spin motors through an ESC without connecting a flight controller or receiver.

Key features

• Checks LiPo, LiFe and Li-ion packs of up to 8 cells through the balance plug, plus NiMH and NiCd batteries
• Shows each cell voltage, total pack voltage, the highest and lowest cell, and the difference between them
• Servo tester for standard and narrow servos: set throws and neutral points on planes, or check motor spin direction on a quad
• Storage discharge function at 1 A
• Backlit LCD that stays readable in low light

Specifications

• Battery types: LiPo, LiFe, Li-ion (up to 8 cells), NiMH, NiCd
• Voltage test precision: 0.001 V
• Discharge current: 1 A
• Servo test frequencies: 50, 60, 100, 125, 200, 250, 300 Hz
• Servo pulse range: 1000–2000 µs or 500–2500 µs
• Dimensions: 84 × 52 × 15 mm
• In the box: tester, user manual

Keep one in the field bag to check packs before a session, catch a weak cell before it ends a flight, and confirm motor direction when you finish a build.