# Diagnostic Scanner KONNWEI KW870 OBD2 Car Code Reader with Battery Tester

**URL:** https://aio.lv/en/product--konnwei-kw870--12035601
**Data updated:** 2026-03-12 16:44 (EET)
**Category:** Miscellaneous repair tools
**Manufacturer:** KONNWEI
**Manufacturer code:** KW870
**EAN:** 5901890097000
**Warranty:** 2 Years
**Availability:** Out of stock

## Summary description

KONNWEI KW870 is an OBD2 diagnostic scanner and car code reader designed to read and clear fault codes from vehicle ECUs and to test battery condition. The handheld tool supports standard OBD2 diagnostics, displays trouble codes, and provides battery testing functionality for assessing voltage and health. Suitable for DIY car maintenance, pre-checks before repair, and quick diagnostics in workshops.

## Long description

The KONNWEI KW870 OBD2 Car Code Reader with Battery Tester is a handheld diagnostic scanner that reads and clears fault codes from vehicle ECUs and provides a basic battery condition check. The unit connects to standard OBD2 ports to retrieve diagnostic trouble codes, display live data where supported by the vehicle, and perform a battery voltage and health assessment. The compact design and clear screen make it suitable for quick on-vehicle checks, pre-repair inspections and routine DIY maintenance.
Advantages
The KONNWEI KW870 combines OBD2 code reading and battery testing in a single portable device, reducing the need for multiple tools. It reports diagnostic trouble codes in readable form and allows clearing of codes to verify repairs. The battery tester evaluates voltage and gives a simple indication of battery condition, enabling faster decisions about charging or replacement. The tool’s handheld format and straightforward operation are designed for use without extensive technical training.
Suitable for
Reading and clearing OBD2 diagnostic trouble codes on compatible vehicles
Checking battery voltage and basic battery health before trips or repairs
Pre-checks and troubleshooting during routine maintenance
Quick diagnostics in small workshops, service vans or by private car owners
Key specifications
OBD standard: OBD2 protocol compatibility with standard-compliant vehicles
Functions: Read and erase diagnostic trouble codes, display DTC descriptions, live data display where supported
Battery test: Voltage measurement and condition assessment for 12V batteries
Display: Integrated screen for codes, live data and test results
Power: Powered via vehicle OBD2 port during operation
Form factor: Handheld, portable diagnostic scanner with cable for OBD2 connection
How to use
Locate the vehicle’s OBD2 diagnostic port, typically under the dashboard, and connect the KONNWEI KW870 using the supplied cable. Turn the vehicle ignition to the required position as indicated by the tool and follow on-screen prompts to read fault codes or initiate a battery test. Use the menu options to view code definitions, record live data if available, and clear stored codes after repair verification. For battery testing, connect per the device instructions and read the displayed voltage and condition result.
Usage recommendations
Use this scanner on OBD2-compliant vehicles and consult the vehicle manufacturer’s documentation for any model-specific diagnostic notes. Perform battery tests with the engine off unless otherwise specified, and ensure secure connection to the OBD2 port. For complex diagnostics or intermittent faults, record codes and seek professional diagnosis if needed.

## FAQ

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer. 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 KONNWEI 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 KONNWEI 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/12035601/67522922_large.webp