1-8S LiPo Battery Voltage Tester & Alarm

Keep your RC batteries safe and performing at their best with this compact 1–8S LiPo / Li-ion Battery Voltage Tester and Buzzer Alarm. Designed for RC hobbyists, drone pilots, and electronics enthusiasts, this handy tool lets you instantly check the individual cell voltage of your battery pack without needing any additional equipment.

Simply plug your battery’s JST-XH balance connector into the tester, and the LED display will show each cell’s voltage in real time. The built-in piezo buzzer triggers an audible alarm when any cell drops below the preset low-voltage threshold, helping you prevent over-discharge and extend battery lifespan.

Compatible with 1S to 8S LiPo, Li-ion, and LiFe battery packs, this tester is a must-have accessory for anyone working with rechargeable lithium cells. Its lightweight, pocket-sized design makes it easy to carry to the field, workshop, or track.

Specifications:

• Display : 7-Segment LED
• Compatible Battery Types : LiPo, Li-ion, LiFe
• Cell Support : 1S – 8S (1 to 8 cells)
• Voltage Range : 3.7V – 30V
• Measurement Accuracy : ±0.01V
• Low Voltage Alarm Threshold : 2.7V – 3.8V per cell (adjustable)
• Alarm Type : Built-in Piezo Buzzer
• Connector : JST-XH Balance Connector