Adjustable Battery Charge And Discharge Tester

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Adjustable Battery Charge And Discharge Tester

The HM3980 is a professional programmable battery tester designed for comprehensive evaluation of rechargeable The HM3980-220V/30A Battery Discharge Tester discharges battery packs via its built-in electronic load. It accommodates discharge testing for battery packs at the specified voltage level (220V). The tester provides real-time monitoring of key parameters during discharge, including battery voltage, discharge current, discharge duration, and discharge capacity. It is suitable for activating various battery types, discharging during initial charging, and performing maintenance discharges.

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Description

Technical Parameters

Product Overview & Application Scenarios

HM3980-220V30A-2

The HM3980-220V/30A Battery Discharge Tester discharges battery packs via its built-in electronic load. It accommodates discharge testing for battery packs at the specified voltage level (220V). The tester provides real-time monitoring of key parameters during discharge, including battery voltage, discharge current, discharge duration, and discharge capacity. It is suitable for activating various battery types, discharging during initial charging, and performing maintenance discharges. Additionally, it evaluates battery storage performance and load capacity. Key advantages include straightforward operation and enhanced discharge safety.

Key Features & Advantages

Model	HM3980-220V/30A Battery Discharge Tester
Apperance
Weight	Main unit 13.4(kg)
Dimension(mm)	445x265x280(LxWxH)

Working mode	Standalone mode, parallel master mode, parallel slave mode, and remote controlled mode
Protection performance	Battery test overvoltage protection, undervoltage stop, overcurrent protection, reverse wiring protection, 65℃ overtemperature protection, with LCD prompt and buzzer alarm
Cell voltage collection (optional)	Multi-band RF wireless module for communication distance of more than 100m, compatible with 2V/4V/6V/12V cell voltage monitoring, 1-25 groups of RF wireless monitoring modules for monitoring up to 300 batteries, and single wireless monitoring module for monitoring 12 cells
Control precision	Discharge current≤±1%; group terminal voltage≤±0.1%; cell voltage≤±0.05%
PC communication	RS485 interface, USB interface
Data storage capacity	Built-in SD card with a capacity of 8G and the USB flash drive with a capacity of 16G

Instrument Interfaces

HM3980

S/N	Function	S/N	Function
1	Chrome-plated handle	5	External communication expansion interface
2	7-inch touchscreen LCD	6	USB data interface
3	AC input interface + device power switch	7	Battery positive terminal connection point
4	Battery negative terminal connection point

Maintenance & FAQs

Q: What types of batteries can the HM3980 test?

A:The HM3980 is primarily designed for rechargeable batteries, including:

Lithium-ion (Li-Ion): Including LCO, LFP (LiFePO₄), NMC, etc.

Nickel-metal hydride (NiMH)

Lead-acid batteries: Including SLA (Sealed Lead-Acid)

Q: Is the HM3980 a simple charger or a diagnostic tool?

A:It is a diagnostic tool that integrates both charging and discharging functions. Its main purpose goes beyond simply charging batteries and includes high-precision measurement of battery capacity (ampere hours, Ah; watt hours, Wh), internal resistance and cycle life.

Q: What are the most critical settings to configure?

Voltage limits are the most important safety and functional settings.

Charge voltage limit: Must be correctly set according to the battery chemistry (e.g., 4.2 V for most lithium-ion batteries, 3.65 V for LFP batteries). Exceeding this limit may cause fire.

Discharge voltage limit: To prevent damage from over-discharge, a minimum safe voltage must be set (e.g., 3.0 V for lithium-ion batteries).

Q:What are the main precautions to take?

Never leave the tester unattended, especially when testing lithium batteries. There is a risk of fire.

Use the tester in a safe place: place the tester and battery on a non-combustible surface. The use of a lithium polymer battery safety bag is recommended.

Check the settings: incorrect voltage limits are the most common operating error and can be dangerous.

Monitor the temperature: touch the battery during testing to check that it is not overheating. Where possible, use an external temperature sensor.

Q: Can I test the battery pack or only individual battery cells?

A:Provided the battery pack's voltage and current fall within the specified range of the HM3980 (please consult the specifications for your model), the battery pack can be tested. However, for safety reasons, it is strongly recommended to use a Battery Management System (BMS) for multi-cell battery packs to prevent individual cells from overcharging or over-discharging during testing.

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