2.4 inch color screen with curve display 8-channel 18650 battery capacity tester

Content

Safety Instructions (Very Important!!!)

  1. Must use a sufficient power DC5V/10A power supply, otherwise insufficient power supply may cause the equipment to not operate normally.
  1. The 18650 battery holder is only suitable for testing flat-top 18650 batteries and is not suitable for testing pointed-top 18650 or other specifications of batteries. Before use, the spring clip can be adjusted for tightness with needle-nose pliers.
  1. This device is not suitable for charging lithium iron phosphate batteries. Testing of lithium iron phosphate batteries can only operate in discharge mode, and charging, automatic, and activation modes are prohibited.
  1. Batteries that are damaged or leaking are prohibited from being powered on for testing.
  1. The activation mode is a forced charging mode. Non-professionals should not use it, and personnel must not leave the site during use.
  1. The charging and discharging process generates heat, please keep away from flammable materials during use!

Tutorial Directory

  1. Technical Parameters
  1. Flowchart Explanation of the Model
  1. Physical Display
  1. Interface Display
  1. Setting Method
  1. Usage Steps

**1. Technical Parameters **

Product Name: 2.4-inch color screen with curve display 8-channel 18650 battery capacity tester

Working voltage: DC5V 10A (standard configuration bare machine, excluding power supply), overvoltage will burn the machine

Power supply interface: ①: DC5.5 high current interface, ② 5V positive and negative solder points

Power supply reverse connection protection: There is reverse connection protection, reverse connection of power supply is prohibited.

Channel type: 8 independent channels, unrelated and do not affect each other

Channel synchronization: supports 8-channel setting synchronization, and can also set parameters for each channel individually.

Introduction to Work Mode:

①Automatic mode: The program starts ~ charging stops at 4.2V charging stop voltage, charging current is less than stop current for 30 seconds, first charging is completed ~ resting (no charging or discharging) ~ discharging according to the stop voltage setting, load voltage is lower than stop voltage for 10 seconds, discharging is completed ~ resting (no charging or discharging) ~ charging with the recharge voltage as the stop voltage, when the recharge voltage is set to 4.2V, charging current is less than stop current for 30 seconds, program ends (when the recharge voltage is not equal to 4.2V, the battery voltage reaches the recharge voltage, program ends), recharge is completed, program ends, automatic mode operation is completed.

②Charging mode: When the program starts ~ the charging voltage is set to 4.2V, and the charging current is less than the stop current for 30 seconds, the program ends (when the charging voltage is not equal to 4.2V, the program ends when the battery voltage reaches the charging voltage) ~ Charging completed.

③ Discharge mode: Program starts ~ Load voltage is lower than stop voltage for 10 seconds, program ends ~ Discharge completed

④ Activation mode: For professional use only, during use, testers must not leave the site! Forced charging at the stop voltage, will not stop automatically, needs to be manually ended.

Charging current: Each channel independently has a maximum of about 1A non-constant current charging, and the charging current is not adjustable.

Charging (Stop) Voltage: 3.7V, 3.8V, 3.9V, 4.0V, 4.1V, 4.2V a total of 6 adjustable levels

Recharge (stop) voltage: 3.0V, 3.1V, 3.2V, 3.3V, 3.4V, 3.5V, 3.6V, 3.7V, 3.8V, 3.9V, 4.0V, 4.1V, 4.2V a total of 13 adjustable levels

(Charging) End current: adjustable at 100mA, 200mA, 300mA

Discharge current: Each channel independently has a maximum of about 1A non-constant current discharge, and the discharge current is not adjustable.

(Discharge) Stop Voltage: 2.0V, 2.1V, 2.2V, 2.3V, 2.4V, 2.5V, 2.6V, 2.7V, 2.8V, 2.9V, 3.0V, 3.1V, 3.2V, 3.3V, 3.4V, 3.5V, 3.6V a total of 17 adjustable levels.

Rest time: adjustable from 1 to 5 minutes.

8 Channel Status Preview: Supports 8 Channel Status 1 Screen Preview

Single channel details display: support

Single-channel charge and discharge curve display: Supported

Internal resistance testing: DC two-wire method for measuring internal resistance, only used for sorting and comparison of the same batch.

Cooling method: Active cooling

Overheat protection: Supported

Cycle charging and discharging: In automatic mode, only one cycle of charge-discharge-charge is supported, and multiple cycles are not supported.

External testing: Supported, can discharge externally through 2P terminals, only one of the battery holder or external testing can be supported for a single channel at a time, and the battery holder and external battery cannot be used for testing simultaneously.

Reverse connection protection: There is reverse connection protection, reverse connection of the battery is prohibited.

Product size: 37×110×310mm

Packaging size: 60×112×335mm

Product weight: 390g (bare machine) / 480g (including packaging)

**2. Mode Flowchart Explanation **

2.1, Automatic Mode

2.2, Charging Mode

2.3, Discharge Mode

2.4, Activation Mode (For professional operation only, do not leave the site during operation)

3. Physical Display

3.1、正反面展示

3.2, Power Supply Interface

3.3、Button, Screen, Cooling Fan

3.4, 18650 battery holder and expansion terminal

3.5, Work Indicator Light and Status Indication

3.6, Host packaging (excluding power supply)

4. Interface Display

↑8 Channel Overview Actual Display

↑单通道详情实际显示

** The following is a demonstration effect, not the actual display effect **

4.1, Channel Overview

①通道指示

② Real-time status indication

③ Real-time battery voltage indication

④ Real-time working current indication

⑤ Capacity Measurement

⑥ Total duration of program execution (hours:minutes:seconds)

4.2, Channel Details

4.2.1, Voltage and Current Curve Display

①Voltage coordinate

②Current Coordinate

③Time coordinate:

④Voltage curve**——————**

⑤ Current Curve ——————

4.2.2, Real-time Parameters

① Real-time battery voltage

② Real-time current

③Work Mode

④Work Step Status

⑤ Program Running Time

⑥ Internal resistance of the battery: measured using the DC two-wire method

4.2.3, Process Step Parameters

① Passage Indication

② First Charge (Initial Charging): Charging Voltage——Maximum 1A Non-Constant Current Charging Current——Rest Time (Minutes)——Charging Capacity

③ First discharge (initial discharge): Discharge stop voltage — Maximum 1A non-constant current discharge current — Rest time (minutes) — Discharge capacity (main reference data for capacity measurement)

④ Recharge (recharge again): Recharge voltage — Maximum 1A non-constant current charging current — Rest time (minutes) — Charging capacity (minutes) — Charging capacity

4.3, Settings Menu

①Channel indication

② Whether to synchronize ① channel settings

③ Working mode: Automatic/Charging/Discharging/Activating

④ (First) Charging Voltage Setting

⑤ (After discharge) recharge voltage setting

⑥ (Charging) End Current Setting

⑦1A Non-constant current discharge current (non-adjustable)

⑧ Stop (discharge) voltage setting, unrelated to charging

⑨Rest time setting: Step alternating wait time (battery cooling time)

5. Setting Method

** The following settings are for demonstration purposes, not actual display effects **

5.1. Overview of Channels and Switching Between Single Channel Display

Click the "Menu/M" button to switch between the overview and channel details.

5.2, Enter the settings interface

In the overview or details interface, long press the "Menu/M" button for 3 seconds to enter the settings interface.

In the settings interface, no action for 10 seconds, or long press the 'Menu/M' button for 3 seconds, you can save the settings and return to the overview interface.

5.3, Mode Selection

Click the "Menu/M" button to switch to the mode adjustment menu

Click the "Adjust/S" button to adjust the working mode

5.4, Charging Voltage Setting

Click the "Menu/M" button to switch to the charging voltage adjustment menu

Click the "Adjust/S" button to adjust the charging voltage

5.5, Recharge Voltage Setting

Click the "Menu/M" button to switch to the recharge voltage adjustment menu

Click the "Adjust/S" button to adjust the recharge voltage

5.6, End Current Setting

Click the "Menu/M" button to switch to the end of charging current adjustment menu

Click the "Adjust/S" button to adjust the charging end current

5.7, Stop Voltage Setting

Click the "Menu/M" button to switch to the stop discharge voltage setting menu

Click the "Adjust/S" button to adjust the stop discharge voltage

5.8, Setting of Standby Time

Click the "Menu/M" button to switch to the idle time setting menu

Click the "Adjust/S" button to adjust the idle time

5.9, Switch to channel ② and set

Click the "Channel/CHN" button to switch to ② channel settings

Click the "Menu/M" button to switch to the Sync ① Channel Settings option menu

Click the "Adjust/S" button to switch synchronization on or off

When you need to set the channel parameters separately, adjust to "Synchronous ① Channel Setting: No" and follow the instructions in steps 5.3~5.8 to complete the corresponding settings.

5.10, Switch different channel settings menu

Click the "Channel/CHN" button to switch to different menus.

5.11, start the program,

5.11.1, Click the "Start/Stop/R/S" button to start or stop the current channel program, click the "Channel/CHN" button to switch to the next channel.

5.11.2, Long press the "Start/Stop/R/S" button for 3 seconds to start the channel program simultaneously; to stop the program, you need to enter the individual channel to stop the program.

6. Usage Steps

6.1, Connect 5V/10A power supply!

6.3, set test parameters, start the program, wait for the test to complete, and during the activation mode, the testers must not leave the site.

6.4, Check the test results, power off and remove the battery.

PS: Question: How long does a cycle take?

Answer: Taking a normal battery with no power, 4.2V first charge/recharge as an example, the reference time ≈ battery nominal capacity ÷ 1000mAh × 3.5) unit hours

—End—

Link
https://mp.weixin.qq.com/s/54bIE9IunVy7bZLAy99xNA
Summary
The article provides essential safety guidelines and technical specifications for an 8-channel 18650 battery capacity tester. Key safety notes include the necessity of using a sufficient power supply (DC5V/10A), the compatibility of the battery holder with flat-top 18650 batteries only, and the prohibition of charging lithium iron phosphate batteries. It emphasizes that damaged or leaking batteries should not be tested and that activation mode should only be used by professionals. The device features various operational modes: automatic, charging, discharging, and activation, each with specific procedures and voltage settings. The tester supports independent channel operation, with a maximum charging and discharging current of approximately 1A per channel. It includes adjustable voltage settings for charging and discharging, as well as a preview of the status of all channels. The article also highlights the importance of avoiding flammable materials during operation due to heat generation. Additionally, it outlines the product's dimensions, weight, and packaging details, ensuring users are well-informed about the device's capabilities and safety requirements.