Table of Contents

Overview

As critical components of power supply systems, batteries require regular testing, maintenance and data analysis annually, quarterly or even monthly.

For VRLA lead-acid battery maintenance, conductance testing has been widely adopted internationally for routine maintenance, replacing traditional voltage inspection. Practice proves voltage merely reflects surface parameters and has poor correlation with capacity, while conductance is an internal parameter that reliably and rapidly evaluates battery health.

The HF-BT-412 Battery Conductance Tester is a portable digital multi-function instrument. It performs online testing to display and record battery voltage, conductance, connection resistance and other parameters. It accurately judges battery status. Combined with computer analysis software, it forms an intelligent test system to track battery degradation and trigger early warnings for engineers and managers.

Main Functions & Key Features

Main Functions

Rapidly measure battery voltage, conductance and connection resistance online
Alarm when battery conductance or voltage exceeds threshold
Adopts anti-AC ripple noise circuit for higher testing accuracy and stability
Quick re-test function; automatically overwrite original data if misoperation occurs
Pre-stores over 200 reference conductance values; supports user-defined thresholds
Grouped coding for battery parameters to facilitate data management
Matched PC intelligent analysis software realizes battery “medical record” tracking
Auto test mode simplifies measurement(1) Automatically analyze and judge battery degradation
(2) Generate historical records and status curves

(3) Realize comparison analysis among batteries in the same group

(4) Classify all batteries into different grades (Excellent / Good / Fair / Poor)

Key Features

High-precision online measurement, full auto-range switching, large-capacity data storage
Auto-range conversion within 0.000–19990 S measuring range
Permanently store 999 groups of battery data (max. 999 cells per group), and 500 groups of battery setting parameters
Applicable battery capacity: 5AH–6000AH
5-inch color touch LCD with Chinese interactive prompt for friendly man-machine interface
Built-in graph and bar chart analysis function
Capacity analysis function to grade batteries as excellent, good or poor
Oscilloscope function: real-time display of maximum, minimum and average voltage; calculate voltage ripple
Export test data to PC via SD card for long-term storage and battery “medical record” tracking
Independent data management, supporting standalone operation without computer connection
Enhanced overvoltage protection for safer and more reliable operation
Auto-recovery overcurrent protection for convenient use
New SOC chip simplifies circuit layout and improves reliability
Dual power supply: high-capacity lithium battery + adapter
Intelligent low-battery reminder to guarantee testing precision
Compact size and light weight

Applications

Daily maintenance and management of storage batteries
Inspection, acceptance and installation of newly delivered batteries
Provide data basis for scrapping judgment of aged batteries
Quality control for battery manufacturers

Technical Specifications

Item	Parameters
Measuring Range	Conductance: 20 ~ 19,990 S Voltage: 0.000v ~ 25v
Minimum Resolution	Conductance: 1S Voltage: 1mV
Measurement Accuracy	Conductance: ±0.5%rdg ±6dgt Voltage: ±0.2%rdg ±6dgt
Power Supply	11.1V, 2400mAh rechargeable lithium battery
Power Consumption	Continuous working time: 8 hours
Storage Capacity	64Mbit Flash + 4G SD Card
Display	5-inch color touch screen
Dimensions	220 × 170 × 52 mm
Weight	1.1 Kg
Operating Environment	0 ~ 60℃, 95%RH
Storage Temperature	-20℃ ~ 82℃

FAQ — Battery Conductance Tester

Q1: What is a Battery Conductance Tester?

A: It is a portable online measuring instrument for lead-acid batteries. It evaluates battery health by testing conductance, voltage and connection resistance, replacing the traditional simple voltage-only inspection method for daily battery maintenance.

Q2: Why use conductance instead of only measuring voltage?

A: Voltage only reflects surface status of batteries and has weak correlation with actual capacity. Conductance reflects internal battery conditions, which can accurately identify degraded and faulty cells in advance.

Q3: What parameters can this tester measure?

A: It can test battery conductance, terminal voltage and connection resistance. It supports threshold alarm for conductance and voltage over-limit.

Q4: Does it support automatic range switching?

A: Yes. The instrument features full automatic range conversion within 20~19990S conductance range, no manual range adjustment required.

Q5: Can the tester judge battery quality automatically?

A: Yes. It carries out capacity grading analysis, classifying batteries into Excellent, Good, Fair and Poor. It supports same-group comparison and historical trend tracking.

Q6: What is the applicable battery capacity range?

A: Suitable for lead-acid batteries from 5AH to 6000AH, covering communication base stations, power substations and UPS battery packs.

Q7: How much data can be stored?

A: It can permanently save 999 groups of battery data (max.999 cells per group) and 500 groups of parameter templates. It is equipped with built-in Flash and SD card for data export to PC.

Q8: Can the instrument work independently without a computer?

A: Yes. It supports standalone testing, recording and analysis. Professional PC analysis software is optional for deep data review and report generation.

Q9: What forms can test data be displayed in?

A: Real-time numerical data, waveform oscilloscope display, bar charts and trend curves are available on the touch screen.

Q10: What safety protection functions are equipped?

A: Built-in overvoltage protection, auto-recovery overcurrent protection, effectively protecting both equipment and batteries during testing.

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