SPECIFICATIONS

Accuracy: ± 1%

Accuracy Class: 0.1

Battery Included: No

Brand Name: Aideepen

Capacity range: 0-19999mAH

Certification: CE

Current resolution: 0.01A

DIY Supplies: Electrical

Dimensions: 5.80cm*2.70cm*1.90cm

Display Type: Digital Only

Feature 1: Safe charging

Feature 2: real-time monitoring

Feature 3: Higher precision

Feature 4: current parameters will not jump around randomly

Feature 5: current sampling 25 milliohms

Feature 6: less loss

Feature 7: Multiple sets of detection data are saved

Feature 8: Power-off save function

Feature 9: LCD USB Voltage/Amps Meter Tester

High-concerned chemical: None

Input voltage: 4-30V

Line loss: about 0.1 ohms

Model Number: Voltmeter Ammeter

Operating Temperature: 0-50C

Origin: Mainland China

Power Supply: DC

Test content: battery voltage, current, discharge capacity (10 sets of

Test current: 0-3A

Voltage Resolution: 0.01V

Voltage range: Other

Feature:
1. At the same time, the voltage and current mAH data are displayed, which is convenient for viewing and can detect the mAH output of the mobile power supply.
2. Multiple sets of detection data are saved, and the power-off saving function does not affect data transmission
3. Higher precision, current parameters will not jump around randomly, current sampling 25 milliohms, less loss
4. With precision current calibration function, the current accuracy is higher
5. Safe charging, real-time monitoring to master your charging data

Specifications:
Input voltage: 4-30V
Voltage Resolution: 0.01V
Test current: 0-3A
Current resolution: 0.01A
Capacity range: 0-19999mAH
Accuracy: plus or minus 1%
Line loss: about 0.1 ohms
Test content: battery voltage, current, discharge capacity (10 sets of data in total)

Instructions for Use:
Measuring Voltage and Current:
Plug the USB male plug into the 5V charger, the female socket into the mobile phone and other equipment, and directly read the voltage and current parameters
Test Battery Capacity:
Use a linear charging circuit such as TP4056 to charge a completely dead battery to full capacity through this capacity meter, and the capacity reading is the battery capacity. This method can also be used to measure the charging capacity of the mobile phone, and even calculate the charging efficiency of the mobile phone
Test Micro USB Cable Quality:
When plugging mobile phones and other devices into the female socket, first plug the 5V charger with the male head of the machine, remember the voltage, and then use the MicroUSB cable to insert the 5V charger into the MicroUSB hole of the machine and remember the voltage. The smaller the voltage difference, the better the quality of the MicroUSB cable.
Measure The Output Capacity and Efficiency of The Mobile Power Supply:
First connect the power bank to the machine, turn on the power bank, press and hold the button until the capacity data returns to zero, insert the mobile phone and charge more until the power bank runs out of power and automatically shuts down. The displayed capacity is the mobile power output mAH when the machine is turned on next time. Note that this mAH is much smaller than the nominal mAH, output mAH*output voltage 5V/battery mAH*battery voltage 3.7V=mobile power efficiency
Data Clear:
Press and hold the button until (the number of sets of data) becomes the next set and then release the key, it will automatically jump to the next set of data starting from zero.
Data View:
Double-click the button (within 0.5S) to enter the viewing data viewing mode, the backlight LED will flash, and then display the next set of data again, double-click to exit the data viewing mode, and the backlight LED will be on for a long time.
Voltage Is High or Low:
LCD screen arrows, backlight LED will flash, alarm prompt. Press the button, the LED is always on for 30S.
Power-on Status:
Turn on the power supply through MicroUSB or USB male connector with cable, the entire content of the LCD screen will display 1S (check whether the LCD screen is intact), and then display the last data (capacity, and which group of data), the current voltage, current and voltage are high or low prompt

Package Included:
Current and voltage charging tester*1

 

We stand behind the quality of our products. This item comes with a limited warranty that protects against defects in materials and workmanship under normal use.

Coverage Details

• Covers manufacturing defects and material failures
• Valid for the period specified on the product or receipt
• Applies only to the original purchaser
• Excludes damage caused by misuse, accidents, or unauthorized repairs
• Proof of purchase may be required to make a claim

How to Claim

• Contact our customer support team with your order details
• Provide a description of the issue and photos if applicable
• Follow the instructions for returning the item or receiving a replacement
• Claims are processed within 5–10 business days after the item is received

Additional Notes

Please handle items carefully and follow usage instructions to maintain warranty coverage. For questions about coverage or claims, contact our support team.

We are committed to delivering your orders quickly and safely. All shipments are processed within 1–2 business days of receiving your order, unless otherwise specified. Delivery times may vary depending on the shipping method, location, and product availability.

Shipping Methods

• Standard Shipping: 3–7 business days
• Expedited Shipping: 1–3 business days
• In-Store Pickup: Available for select items at participating locations

Order Tracking

Once your order has been shipped, you will receive a confirmation email with tracking information. You can monitor the delivery status at any time using the tracking number provided.

Shipping Restrictions

• We currently ship only within the specified countries listed at checkout.
• Certain items may not be eligible for expedited shipping or in-store pickup.
• Delivery times are estimates and may be affected by weather, holidays, or carrier delays.

Additional Notes

Please ensure that your shipping address is correct and complete to avoid delays. We are not responsible for lost or delayed packages due to incorrect information or carrier issues.

We want you to be completely satisfied with your purchase. If you are not happy with your item, you may return it within 30 days of receipt for a refund or exchange, subject to the conditions below.

Eligibility for Returns

• Items must be unused, in their original packaging, and in resalable condition.
• Proof of purchase, such as a receipt or order confirmation, is required.
• Some items, including perishable goods or personalized products, may not be eligible for return.

How to Return an Item

• Contact our customer support team to initiate a return.
• Pack the item securely in its original packaging or equivalent.
• Ship the item to the provided return address using a tracked shipping method.

Refunds and Exchanges

• Refunds are processed within 5–10 business days after the returned item is received and inspected.
• Exchanges will be processed once the returned item is approved and the replacement is shipped.
• Shipping costs for returns may be the responsibility of the customer unless the return is due to a defect or error on our part.

Additional Notes

Please ensure that items are returned safely to prevent damage during transit. Contact our support team if you have any questions or need assistance with the return process.

We are committed to making eco-friendly choices that reduce our environmental impact. From responsible sourcing to sustainable packaging, every product is designed with the planet in mind.

Our Sustainable Practices

• Products made with recycled or responsibly sourced materials
• Packaging designed to minimize waste and be recyclable
• Energy-efficient manufacturing processes
• Carbon footprint reduction through eco-conscious shipping
• Support for environmental programs and initiatives

How You Can Help

• Recycle packaging after use
• Choose items marked as eco-friendly or sustainably made
• Consider consolidated shipping to reduce emissions
• Share sustainable practices with your community

Here are answers to some of the most common questions about this product. If you don’t see your question, feel free to contact our support team.

1. How long will delivery take?

Delivery typically takes 3–7 business days depending on your location and the shipping method selected at checkout.

2. Can I return the item if I’m not satisfied?

Yes. Items can be returned within 30 days of receipt, provided they are in original condition and packaging. See our Return Policy for full details.

3. Is this product covered by a warranty?

Yes. The product comes with a limited manufacturer’s warranty that covers defects in materials and workmanship. Refer to our Warranty Policy for details.

4. Can I track my order?

Absolutely. Once your order has shipped, you will receive a confirmation email with tracking information to monitor its progress.

5. Who should I contact for technical support?

For setup, troubleshooting, or other technical questions, please contact our Technical Support team via email or phone. Details can be found in the Technical Support tab.