# USB tester electro base UT658 — voltage and current measurement for USB devices

**URL:** https://aio.lv/en/product--electro-base-ut658--10633465
**Data updated:** 2026-02-12 22:01 (EET)
**Category:** Network Tools
**Manufacturer:** electro base
**Manufacturer code:** UT658
**EAN:** 3100001462849
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 12.98 €
**Prices and availability valid until:** 2026-07-06 23:59
**Price without VAT (21%):** 10.73 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--electro-base-ut658--10633465

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 15.06.2026 | free |
| Pickup points | 18.06.2026 | 1.99 EUR |
| Courier delivery to door | 18.06.2026 | 4.99 EUR |

## Summary description

The electro base UT658 is a USB tester designed to measure voltage and current on USB connections. It connects inline between a USB power source and a device to monitor electrical parameters, helping check chargers, power banks and cables. The tester provides real-time readings for verifying power delivery, diagnosing charging issues and ensuring compatible charging conditions.

## Long description

The electro base UT658 is a compact USB tester engineered for inline measurement of voltage and current on USB connections. Designed to be placed between a USB power source and a connected device, the UT658 provides real-time numeric readings that help verify chargers, power banks and USB cables. The device assists technicians and end users in diagnosing charging problems, confirming power delivery parameters and ensuring safe, compatible charging conditions for smartphones, tablets and other USB-powered gadgets.
Advantages
The UT658 delivers clear, continuous readings of voltage and current without interrupting normal charging. Its compact form factor makes it easy to insert into a USB cable path and transport between test points. The tester operates with common USB power sources and devices, allowing quick verification of output voltage stability and charging current under load. Readouts support troubleshooting of weak cables, faulty chargers and unexpected power draw, enabling faster identification of issues.
Suitable for
 Testing USB chargers and wall adapters
 Verifying power bank output and capacity behavior under load
 Diagnosing charging problems with smartphones, tablets and accessories
 Checking USB cable quality and voltage drop over a connection
 Verifying USB power delivery in field service and repair workflows
Key specifications
 Measurement parameters: DC voltage and DC current
 Connection type: inline USB connection for power in and power out
 Display: real-time numeric readout for voltage and current
 Form factor: compact, portable inline tester suitable for bench and field use
 Compatibility: works with standard USB-powered devices and chargers
How to use
Insert the UT658 inline between the USB power source and the device under test by connecting the power source to the tester input and the device to the tester output. Power on the source and observe the display for instantaneous voltage and current values while the device is charging or under load. Compare measured values to the expected output of the charger or device specifications to identify deviations, unstable voltage, or excessive current draw. Remove the tester once measurements are complete and disconnect safely.
Usage recommendations
Use the tester with cables and connectors in good condition to avoid misleading voltage drop readings. When measuring, allow the device under test to reach a steady charging state for accurate current readings. Avoid exposing the tester to moisture and high temperatures; store it in a dry environment when not in use.

## FAQ

### How much does the USB tester electro base UT658 cost, and is it available for purchase?

The price is 12.98 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 15.06.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All electro base products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized electro base service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/10633465/54792996_large.webp