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ATOMFAIR® battery voltage and internal resistance tester device, shown with red and black test probes and alligator clips on a white background.

BT82 Battery Voltage & Internal Resistance Tester ATOMFAIR®

$316.00

Institutional Procurement & Supply Compliance: As a verified US supplier, Atomfair accepts formal institutional Purchase Orders (POs), contract billing schedules, and custom procurement loops for university and national laboratories, and corporate R&D departments globally.

High Precision BT82 four-terminal battery tester:±0.5% accuracy,0-50V,0.01-4000mΩ,100,000 data storage.Ideal for secondary batteries.Order now.

SKU: AFMSQNLB190
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Description

ATOMFAIR® BT82 BATTERY VOLTAGE & INTERNAL RESISTANCE TESTER

RESEARCH GRADE MATERIAL

Product Overview
The Atomfair BT82 is a high-precision digital diagnostic instrument engineered specifically for evaluating the open-circuit voltage (OCV) and AC internal resistance (AC-IR) of secondary battery chemistries, including lead-acid, Ni-Cd, Ni-MH, lithium-ion, and lithium-polymer structures. Utilizing an advanced four-terminal Kelvin measurement method, this portable analyzer eliminates lead resistance errors to deliver uncompromised data stability and exceptional cost-performance metrics across battery production, maintenance inspection, and strict laboratory quality assurance workflows.

Technical Specifications

TEST ITEM TEST RANGE RESOLUTION BASIC ACCURACY (RD = RANGE VALUE)
1. Voltage Measurement Profile
DC Voltage (Low Range) 0–5 V 0.001 V ±(0.5%RD + 0.003V)
DC Voltage (High Range) 0–50 V 0.01 V ±(0.5%RD + 0.003V)
2. AC Internal Resistance Profile
AC-IR (Micro Range) 0.01–40 mΩ 0.01 mΩ ±(0.5%RD + 0.05mΩ)
AC-IR (Medium Range) 0.1–400 mΩ 0.1 mΩ ±(0.5%RD + 0.5mΩ)
AC-IR (High Range) 1–4000 mΩ 1 mΩ ±(0.5%RD + 5mΩ)
Manufacturing Rules Processed under strict ISO 9001 compliance conditions
Expansion Interfaces Equipped with external control terminals for automated system expansion · Optional USB communication modules available

Key Features & Advantages
  • Four-Terminal Measurement Method: Utilizes specialized Kelvin testing connections to eliminate contact resistance errors, locking supreme accuracy and test data stability.
  • Robust Historical Data View: Integrated digital registers permit immediate querying of previous analytical test results for convenient batch comparisons.
  • Dual-Limit Sorting Comparator: Holds up to 10 independent configuration groups for both voltage and internal resistance thresholds; triggers active audio buzzers and bright red dashboard warnings for out-of-limit breaches, while green indicators signal qualification pass states.
  • Large-Capacity Local Storage: Automatically logs up to 100,000 complete groups of analytical measurements to facilitate subsequent deep traceability reviews.
  • Multi-Point Calibration Architecture: Supports simultaneous hardware zero-point balancing alongside high-accuracy external DC reference (3V∼50V) and precision resistance (10∼4000mΩ) standard referencing.
  • Automated Line External Expansion: Outfitted with discrete opto-isolated remote control ports to facilitate fast handshake links with industrial battery testing equipment.

APPLICATION SCOPE: Secondary battery open-circuit voltage diagnostics, AC internal resistance grading, electrochemical cell pack maintenance, battery sorting assembly, and quality assurance inspection tracking.
FACILITY REQUIREMENT: Benchtop workshop operation or automated screening integration. System Net Dimensions: 480×380×130 mm. Chassis Net Weight: 50 KG. Supports wide power networks.
IMPORTANT NOTICE: This digital instrument monitors micro-level resistance components down to 0.01mΩ. Always ensure the four-terminal Kelvin probes make perfect, clean physical contact with the battery poles, and isolate connection paths from heavy electromagnetic fields to maintain the tight ±0.5% measurement accuracy bounds.

TAILORED SOLUTIONS FOR RESEARCH
Contact our engineering team for technical support or official institutional quotations.
EMAIL: inquiry@atomfair.com
Manufacturer: Atomfair LLC
Brand: ATOMFAIR®

This document outlines the calibration and operational constraints for the Atomfair BT82 Battery Voltage & Internal Resistance Tester. Proper adherence to these constraints ensures accurate measurement and prevents damage to the instrument or connected batteries.

  • Calibration Constraints: Zero calibration must be performed simultaneously for voltage and internal resistance, voltage calibration requires an external DC reference of 3V to 50V, and AC internal resistance calibration requires a precision resistor of 10 to 4000 mΩ.
  • Measurement Range Limits: Voltage measurement is limited to two ranges (0-5V and 0-50V) and internal resistance measurement to three ranges (0.01-40mΩ, 0.1-400mΩ, and 1-4000mΩ), with specified accuracy only within these ranges.
  • Comparator Configuration: Up to 10 groups of voltage and internal resistance upper/lower limits can be set, and the buzzer alarm must be enabled for out-of-limit condition detection.
  • Data Storage Limits: The instrument stores a maximum of 100,000 test data groups; periodic data export is required to prevent loss or overwriting of historical records.

This guide provides the chronological steps for initializing, calibrating, and using the Atomfair BT82 Battery Voltage & Internal Resistance Tester. Follow each step to ensure safe and accurate measurement of secondary battery parameters.

Required Equipment: Four-Terminal Kelvin Test Leads, External DC Voltage Reference (3V-50V), Precision Resistor (10-4000 mΩ)

  1. Connect Test Leads
    Connect the four-terminal Kelvin test leads to the instrument and attach them to the battery terminals, ensuring firm contact for accurate measurement.
  2. Perform Zero Calibration
    Initiate zero calibration via the menu to simultaneously nullify voltage and internal resistance offset errors before first use.
  3. Set Comparator Limits
    Configure up to 10 groups of voltage and internal resistance upper and lower limits in the comparator function menu and enable the buzzer alarm for out-of-limit detection.
  4. Select Measurement Range
    Choose the appropriate voltage range (0-5V or 0-50V) based on the expected battery open-circuit voltage to maximize resolution and accuracy.
  5. Measure Battery Parameters
    Press the test button to record the open-circuit voltage and AC internal resistance; verify that the indicator shows green for in-limit or red with buzzer for out-of-limit results.
  6. Calibrate Using External Reference
    Calibrate the voltage accuracy by connecting an external DC reference of known value and adjusting the instrument accordingly via the calibration menu.
  7. Export Stored Data
    Periodically export the stored 100,000 data groups via the optional USB communication module to prevent data loss before the memory becomes full.

Does the Atomfair BT82 automatically select the optimal measurement range for internal resistance when testing batteries with unknown impedance, or must the user manually set the range?

No, the Atomfair BT82 does not automatically select the internal resistance range; the user must manually set the appropriate range based on expected battery impedance. The tester provides three predefined ranges: 0.01–40mΩ, 0.1–400mΩ, and 1–4000mΩ, each with fixed resolution and accuracy of ±(0.5% of reading plus a range-dependent offset). Selecting the correct range is critical to avoid exceeding the measurement limit or sacrificing resolution.

Can the Atomfair BT82 be integrated into an automated battery test system for inline quality control, and what interfaces are required?

Yes, the Atomfair BT82 can be integrated into an automated test system via its external control terminals, which enable remote triggering and data retrieval. However, USB communication is optional and not included in the standard configuration, so a separate USB interface module must be purchased for direct PC data logging and advanced automation. The external control terminals are available on all units for basic automation without additional modules.

What calibration standards are required to maintain the specified accuracy of the Atomfair BT82, and does the instrument require periodic recalibration?

To calibrate the Atomfair BT82, users need an external DC voltage source from 3V to 50V for voltage calibration and a precision resistor between 10 and 4000mΩ for internal resistance calibration. The instrument also supports zero calibration that simultaneously zeroes both voltage and resistance readings. While the product description does not specify a mandatory recalibration interval, periodic recalibration is recommended to maintain the ±0.5% basic accuracy in long-term laboratory use.

The Atomfair BT82 delivers high-precision four-terminal AC internal resistance and voltage measurement for secondary batteries, enabled by a large 100,000-point data storage capacity for batch testing, though it requires external calibration references and does not include USB communication in its standard configuration.

Positive

  • Four-terminal measurement accuracy: The four-terminal (Kelvin) measurement method ensures high accuracy and stability by eliminating lead and contact resistance effects, critical for reliable low-impedance readings on secondary batteries.
  • 100,000-group data storage: The instrument stores up to 100,000 test data groups locally, enabling long-term trending and batch comparison without an external computer for routine quality logging.

Trade-offs

  • External calibration references needed: Voltage calibration requires an external DC 3–50 V reference source, and AC internal resistance calibration needs a 10–4000 mΩ precision resistor, adding infrastructure requirements for maintaining rated accuracy.
  • USB communication not standard: The optional USB interface for automated data export and external control is not included in the standard configuration, requiring an additional purchase for PC connectivity.

Every advanced material, component, equipment, and instrument in our catalog is backed by rigorous testing. We maintain strict internal quality management frameworks and align with CE conformity metrics to deliver transparent, reproducible performance data via our public open-science repository.

To request raw batch performance data, submit formal vendor registration paperwork, or execute a fast-turnaround R&D manufacturing loop, contact us at inquiry@atomfair.com.

Item is dispatched under the Atomfair Shipping & Delivery Framework (Free worldwide shipping on orders over $59 USD). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).

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