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ZB2L3 18650 battery capacity tester
ZB2L3 18650 battery capacity tester—accurate and portable tool to measure voltage, capacity, and health of Li-ion batteries.
The ZB2L3 18650 Battery Capacity Tester is a compact and precise device designed to measure the capacity, voltage, and health of 18650 Li-ion batteries. It helps you evaluate the actual charge capacity of your batteries, detect weak or damaged cells, and ensure reliable performance for your electronics projects.
This tester is ideal for DIY battery packs, power banks, RC batteries, flashlights, and Arduino/ESP32 battery-powered devices. With a user-friendly interface, it allows you to quickly and accurately test batteries without disassembly or additional tools. Its lightweight and portable design make it perfect for hobbyists, technicians, and battery enthusiasts.

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- Limit switches:Â 6
- Micro-stepping:Â 1/16
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- Uses removable Pololu A4988 compatible stepper drivers. (A4988, DRV8825, and others) (Not Included)
- Jumpers to set the Micro-Stepping for the stepper drivers. (Some drivers like the DRV8825 can do up to 1/32 micro-stepping )
- Compact design.
- Runs on 12-36V DC. (At the moment only the Pololu DRV8825 drivers can handle up to 36V so please consider the operation voltage when powering the board.)
- Please note that this is an unassembled kit and needs soldering.
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- Working current: matching for 30 mA, matching the communication for 8 mA.
- Dormancy current: no dormancy.
- Used for a GPS navigation system, water, and electricity gas meter reading system.
- With the computer and Bluetooth adapter, PDA, seamless connection equipment.
- Bluetooth module HC-08 Master and slave Two in one module.
- Use the CSR mainstream Bluetooth chip, Bluetooth V2.0 protocol standards.
- Potter default rate of 9600, the user can be set up.
- Bluetooth protocol: Bluetooth Specification v2.0+EDR
- Speed: Asynchronous: 2.1Mbps(Max) / 160 kbps, Synchronous: 1Mbps/1Mbps.
- Security: Authentication and encryption.
- Profiles: Bluetooth serial port.

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