How long does 1 testing cycle usually take?

Arrived after 3 weeks to Ireland Packaging was terrible, really bad, item in a antistatic bag in another plastic bag, no bubble wrap or protection whatsoever, such carelessness for such a fragile item, hence the big power resistor was only hanging on at one end. I resoldered the load resistor and moved the battery being tested holder 10mm away from this hot load resistor. After the repair, I tested the device and it did work fine. Please note: This device places a fixed load of 500mA on your battery under test, this is NOT adjustable, this is quite low for a 18650 battery, results while accurate for a 500mA draw, will not hold aH true for a higher load on the same battery, a real test drawing a higher current may surprise you, as it did me (eg. battery 2.12aH @ 0.5amp load, 1.25aH@ 1amp load)

if I want to test many batteries, do i need a time-gab between one battery test and the next one?

No.In series, it can be measured continuously

Can I test only 1 battery? How to do?

Left batt is to power the print, right batt is the batt you want to test

Hello, does this product have the function of recharging the battery? Or just flush?

It's just to know how many mAh actually hold the cell on the left, the one on the right is just the power source

A 21700 cell does not fit in. The device is for 18650 types only.

up to what voltage of the supply battery (3.6v on the left) is correct measurement guaranteed?Up to which voltage of the supply battery (3.6v at SX) is the correct measurement guaranteed?

I have used mine with supply cells around 3.0 volts without issue. the voltage measured for load is via the mcu which will have its own internal precision reference that will be largely unaffected by supply voltage changes, the mcu would quit via brown out detection before that is an issue. ... see more see less

I put the power battery in backwards, now the product doesn't work. Can this be fixed?

Maybe the circuit is damaged beyond repair.

2nd Button shows 1140 mAh after testing for 1 hour. After 3 hours, test for another hour, it hangs at 520 mAh.

guys，Thanks for your feedback.

do you have a website were I could get better instructions.

Apart from the details page, there is no more information.

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Geekcreit

XH-M240 Battery Capacity Tester mAh mWh for 18650 Lithium Battery Digital Measurement Lithium Battery Power Tester Voltmeter

Name: XH-M240 Battery Capacity Tester mAh mWh for 18650 Lithium Battery Digital Measurement Lithium Battery Power Tester Voltmeter
Brand: Geekcreit
SKU: 2049051
Price: 1058 INR
Availability: InStock
Rating: 5.0 (431 reviews)

5.0431 ratings

3.9k+ bought in past month

AI Summary

Test & Measuring Module for everyday users

The XH-M240 Battery Capacity Tester mAh mWh for 18650 Lithium Battery Digital Measurement Lithium Battery Power Tester Voltmeter by Geekcreit is a value-for-money test & measuring module designed for everyday users. Customers praise its easy to set up and use and excellent build quality. 100% of buyers rate it 4★ or above.

✓ easy to set up and use✓ excellent build quality✓ great value for money✓ fast and responsive

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SKU: bg-2049051Category: Test & Measuring Module

About This Product

The XH-M240 Battery Capacity Tester mAh mWh for 18650 Lithium Battery Digital Measurement Lithium Battery Power Tester Voltmeter by Geekcreit is a value-for-money test & measuring module designed for everyday users. Customers highlight its easy to set up and use and excellent build quality.

Customer Verdict

100% of buyers rated this product 4 stars or above. The most appreciated qualities are: easy to set up and use, excellent build quality, great value for money, fast and responsive.

Why Buy from Pricio?

Pricio sources this product directly, cutting out multiple middlemen. Every order includes free shipping, a 15-day return policy, and secure payment via Razorpay.

Note: Package is not included batteries.

Description:

It is a Lithium battery capacity tester.It is used to test the voltage, discharge capacity and discharge energy of a 18650 lithium battery.

Features:

- Dual working power supply

- 18650 battery special tester

- Support display discharge capacity

- Support display discharge energy

- Support parameter memory function

Specifications:

Work Voltage: DC 5V~12V or 18650 battery

Stand-by current: 5~7mA

Discharge current: 500mA

Load power: 10W 8ohm

Measuring voltage accuracy: 0.1V

Discharge capacity accuracy: 1mAh

Discharge energy accuracy: 1mWh

Work Temperature: -25℃~85℃

Work Humidity: 5%~95%RH

Size: 110*80*25mm

Use Steps:

1. Connect work voltage DC 5V~12V from white XH2.54-2P socket or install a 18650 battery at left battery socket.

2. Install a measured 18650 battery at right battery socket.

3. Turn on power supply switch. Then the screen will display current battery voltage.

4. Set discharge stop voltage. Press button + and - to set discharge stop voltage. Parameters can be saved automatically.It is recommended that the 18650 battery stop discharge voltage be set to 3.5V.

5. Short press the first(left) button to start measuring.Then the LED indicator D3 will turn ON.

6. Short press the second button to switch dispaly capacity(mAh), energy(mWh) and voltage.

7. Long press first(left) button to clear dispaly capacity(mAh) and energy(mWh).

8. The battery is tested and shows the battery test value when D3 LED indicator start blinking.

Package Included:

1 x XH-M240 Battery Capacity Tester mAh mWh for 18650 Lithium Battery

Product Safety Information

Setup Guide

Identify the pins

Locate VCC (power), GND (ground), and data pins (SDA/SCL for I2C, MOSI/MISO for SPI, or TX/RX for UART). Refer to the pinout diagram on the product page.

Wire to your microcontroller

Connect VCC to 3.3V or 5V (check the module spec), GND to GND, and data pins to the appropriate GPIO pins on your Arduino or Raspberry Pi.

Install libraries

In Arduino IDE, go to Sketch → Include Library → Manage Libraries and search for the sensor library. Install the recommended version.

Upload example sketch

Open File → Examples → [library name] → Basic Example. Upload to your board and open Serial Monitor to view output.

Calibrate if needed

Some sensors (temperature, humidity, distance) may need a short warm-up period or calibration. Run the calibration sketch if provided.

XH-M240 Battery Capacity Tester mAh mWh for 18650 Lithium Battery Digital Measurement Lithium Battery Power Tester Voltmeter

About This Product

Customer Verdict

Why Buy from Pricio?

Setup Guide

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