DC-300V Battery Pack Comprehensive Tester

Manual connection, then an automatic test

Dianzhonghe's product page describes manual electrical connection followed by automatic testing, a pass/fail judgment and recording. So the test sequence runs by itself, while loading, connector insertion and unloading are done by people. For an unattended line, ask for a separate proposal covering those handling steps.

The basic test list covers open-circuit voltage, AC and DC internal resistance, charge activation, charging and discharging checks, and overcurrent-protection checks. The software lets you edit the step order and parameters. Send your actual release sequence, showing when activation happens and which checks need a response from the pack protection system.

Charging and discharging have different voltage ranges. Charging covers 0–300 V and discharging covers 20–300 V. That lower discharge limit matters if your sequence takes the pack lower. The catalogue also offers several charge-current and discharge-current options, and the biggest figure in one column does not come paired with the biggest in the other. Get your selected current and power configuration in writing.

The page specifies four-wire voltage and current sampling and CSV records, with test start by barcode or foot switch. Ask for the measurement uncertainty, the contact reliability you can expect and how records will reach your quality database. Request a sample record and a trial on your own pack fixture.

BMS communication and MES connection appear as options to confirm in advance. The page names several possible communication interfaces and says one protocol is supported by default, chosen to suit the customer's battery. Treat the protocol as a choice you make at order. Message definitions, scaling, response time and who does the integration all need to be agreed.

Catalogue values apply to the configuration and test method the maker states. Ask for the values that apply to your configuration.

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From connection to release

Settle how the pack identifier gets into the test record and how the operator makes the connection. Dianzhonghe supports manual wiring and test start by barcode or foot switch. For your fixture, define the terminal geometry, polarity protection, contact checking and what the station does when a barcode will not scan. These are points to price; no fixture comes in the catalogue.

Give Dianzhonghe a step list with the voltage and current conditions and the pass limits. Keep activation, resistance measurement, charging, discharging and protection checks as separate steps. Ask which steps can be shown on your pack and how the system handles an abnormal stop. Different BMS designs and pack builds may each need their own recipe.

Ask for a CSV example tied to the pack identifier and check it holds the fields your quality record needs. If you buy MES transfer, have the network cut during the demonstration and agree whether a pack may be released before the upload is acknowledged. The local result, barcode history and external upload happen separately, and the quotation should name who is responsible for each.

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What to request before choosing it for release testing

Dianzhonghe's company and product pages are the sources here. The product page describes reverse-polarity protection and a disconnect on emergency stop or on unexpected loss of AC input. Ask to see the safety design of the quoted unit and test its response once it is installed at your site.

The catalogue gives accuracy using its own full-scale and other abbreviations. Ask Dianzhonghe to explain each term, state the measurement range you will use and provide traceable calibration documents for the quoted configuration.

Ask the company for its business licence to confirm the legal entity, and for the current scope of any certificates it holds.

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When the DC-300V fits

Put the DC-300V on a shortlist when an assembled pack needs an operator-connected electrical inspection station with editable test steps and records tied to each product. It gives you a concrete model to discuss pack voltage, charge/discharge configuration and optional BMS or MES links. That keeps the purchase focused on the release test.

Look elsewhere if the job is mainly continuous cell cycling or automatic material handling, or if you need functions marked unsupported in the option table. Plan discharge work inside the 20–300 V range, since the 0–300 V figure applies to charging. When comparing quotes for full EOL coverage, assign each required test to a named instrument first, then compare prices.

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What to send with your enquiry

Pack and connection drawing: give the pack voltage window, terminal layout, intended connection method and the variants that need a fixture change.

Release-test matrix: list each electrical check, its order and its pass/fail rule. Flag insulation, protection-board or other checks that may need another instrument.

Power and current configuration: ask for the exact charge and discharge current and power options, and state the lowest discharge voltage your test needs.

BMS and data transfer: supply the protocol and message definitions and the CSV or MES fields you want. Ask who builds the interface and how a failed upload affects pack release.

Buying guidance from BatteryEquip.