Smart Cell 8-Channel Tester/Charger for 18650/21700 cells

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Power source: Tester/Charger + USB-C to DC 5.5 Free
Price:
Sale price$49.99 USD Regular price$59.99 USD

Description

DIY Friends !!! Unlock the Full Potential of Your DIY Battery Projects
The 8-Channel 21700/18650 Lithium Battery Tester is a must-have tool for DIYers and professionals alike, offering precise performance analysis, real-time monitoring, and essential safety features. Perfect for testing, maintaining, and optimizing lithium-ion batteries, this compact tester ensures your projects are built on a foundation of quality and reliability. 

2Pcs Battery Holder for 21700 Cells are included at this price. 


8-Channel Lithium Battery Tester

The 8-Channel 21700/18650 Lithium Battery Tester is a powerful tool designed for accurate and efficient testing of lithium-ion batteries. With independent channels, it allows simultaneous testing of multiple cells, offering real-time voltage, current, and resistance monitoring on its 2.4-inch color display.

Perfect for enthusiasts and professionals, this tester supports charging, discharging, and activation modes, ensuring precise performance analysis. Built with active heat dissipation and safety features like overheating and reverse connection protection, it guarantees reliable and safe operation.

Compact and easy to use, this tester is an essential tool for battery maintenance, performance optimization, and pack building.


 

Feature/Specification Details
Product Name 8-Channel 21700/18650 Lithium Battery Auto Charge/Discharge Tester
Screen 2.4-inch Color Display
Supported Batteries 18650 and 21700 Lithium-Ion
Channels 8 Independent Channels (each operates independently)
Charging Current Max 1A per channel (not adjustable)
Discharge Current Max 1A per channel (non-constant, not adjustable)
Charging Stop Voltage 3.7V, 3.8V, 3.9V, 4.0V, 4.1V, 4.2V (6 steps)
Recharge Stop Voltage Adjustable: 3.0V to 4.2V (13 steps)
Discharge Stop Voltage Adjustable: 2.0V to 3.6V (17 steps)
End Current Adjustable: 100mA, 200mA, 300mA
Internal Resistance Measurement DC two-wire method
Heat Dissipation Active heat dissipation with a fan
Overheating Protection Supported
Cycle Charging/Discharging 1 cycle (charging-discharging-charging) supported in automatic mode
Modes - Automatic Mode
- Charging Mode
- Discharge Mode
- Activation Mode (manual stop required)
Standing Time Adjustable: 1–5 minutes
Status Preview Supports 8-channel status preview on one screen
Curve Display Supports single-channel voltage/current and charging/discharging curve display
Reverse Connection Protection Supports reverse battery and reverse power connection protection
External Discharge Test Supported through 2P terminal (battery holder and external test cannot be used simultaneously)
Power Supply DC 5V 10A (bare metal, no power supply included)
Power Supply Interface DC5.5 high-current interface and 5V positive/negative welding points
Product Dimensions 37×110×310mm
Package Dimensions 60×112×335mm

Customer Reviews

Based on 2 reviews
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Brad F
8 bays and full 1a dis/charge, fastest shipping

Great product, time saving when batch processing a lot of cells. Does 18650 & 21700 cells. Charge and discharge 1a per bay. I’ve used on a few hundred cells so far with no issues at all. Would recommend.

As always, diy500amp has the best customer service and fastest shipping anywhere!

Thanks, Brad! We're glad the tester is saving you time and handling large batches smoothly. It's a reliable tool for 18650 & 21700 cells, and we're happy it's working great for your workflow. Appreciate your continued support!

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Bryan C Rowen
Battery tester

First model to purchase. Definitely could use a basic instruction set or include a QR code for a video link. It works great. Could use a better method for battery removal. Prying against the plastic will cause failure.

Thanks for the feedback, Bryan! We're glad to hear the tester works well for you. You're absolutely right a simple instruction sheet or video guide would be a big help. We're already working on that, and we appreciate the tip on improving the removal process too!

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