The 1S 24S Lithium Battery Voltage Quick Tester

is a handy diagnostic tool designed to quickly and accurately check individual cell voltages in lithium battery packs connected to a Battery Management System (BMS). It supports 1S to 24S configurations, making it suitable for Li-ion, LiFePO₄, and other lithium battery packs used in EVs, solar storage, and energy systems.

This tester allows technicians and battery builders to instantly identify cell imbalance, low-voltage cells, wiring faults, or BMS connection issues without complex instruments. Its clear display and simple plug-and-play operation make it ideal for both professional use and DIY battery assembly.

Compact and lightweight, the tester is an essential maintenance and troubleshooting tool for ensuring battery safety, performance, and long service life.

Key Features

Supported Range: 1S to 24S lithium battery packs

Compatible Chemistries: Li-ion, LiFePO₄, NMC, LFP

Function: Individual cell voltage checking

Display: Clear digital/LED voltage indication

Operation: Plug & play via BMS balance connector

Accuracy: Fast and reliable readings

Design: Compact, portable, and durable

Key Benefits

Quickly detects weak or imbalanced cells

Helps prevent battery damage and failure

Saves time compared to multimeter testing

Easy to use—no technical setup required

Improves battery safety and performance

Essential tool for BMS troubleshooting