# Battery tester KONNWEI KW218 for 12V and 6V lead-acid batteries, digital diagnostics, quick load test

**URL:** https://aio.lv/en/product--konnwei-kw218--10909654
**Data updated:** 2026-02-13 15:40 (EET)
**Category:** Other goods
**Manufacturer:** KONNWEI
**Manufacturer code:** KW218
**EAN:** 310000187915
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 34.49 €
**Prices and availability valid until:** 2026-08-01 23:59
**Price without VAT (21%):** 28.50 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--konnwei-kw218--10909654

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 22.07.2026 | free |
| Pickup points | 27.07.2026 | 1.89 EUR |
| Courier delivery to door | 27.07.2026 | 4.99 EUR |

## Summary description

KONNWEI KW218 is a portable battery tester designed for 12V and 6V lead‑acid batteries. It performs digital state-of-charge and health assessments, quick load tests and displays voltage and internal resistance readings. Intended for garages, roadside checks and workshop diagnostics, it helps identify weak or failing batteries and supports timely replacement decisions.

## Long description

KONNWEI KW218 is a portable battery tester for 12V and 6V lead-acid batteries that provides digital diagnostics and quick load testing. The unit displays measured voltage, internal resistance and state-of-charge, and evaluates battery health to help identify weak, discharged or failing batteries. Designed for use in garages, workshops and roadside checks, the KW218 is compact and intended for straightforward on-site screening and decision support for battery maintenance or replacement.
Advantages
The tester combines voltage measurement, internal resistance readout and a quick load test in one handheld device, enabling rapid assessment without disassembling the vehicle. Its digital display offers clear numeric feedback, and the device supports both 6V and 12V lead-acid battery types. Portability and simple probe/clamp connections allow use in garages, service vans or at the roadside. The tester’s diagnostic outputs streamline identification of batteries that require charging, further testing or replacement.
Suitable for
Routine battery checks in private garages and professional workshops
Roadside diagnostics and quick checks before starting or after jump‑starts
Pre-purchase battery verification and fleet maintenance screening
Testing conventional lead-acid batteries in cars, motorcycles and small vehicles
Key specifications
Supported battery voltages: 6V and 12V
Measurement functions: voltage, internal resistance, state-of-charge and health evaluation
Quick load test capability for under-load assessment
Digital numeric display for measurement results
Portable handheld form factor with probe and clamp connections
How to use
Connect the clamps to the battery terminals with the ignition off and ensure correct polarity. Select the appropriate battery voltage range if required, then initiate the test following the device prompts shown on the digital display. The KW218 will measure open-circuit voltage and internal resistance, then perform a controlled quick load test to provide an assessment of state-of-charge and overall battery health. Interpret the numeric results and health indicators to decide whether the battery needs charging, further testing, or replacement. After testing, disconnect the clamps and store the unit in a dry place.
Usage recommendations
Use the tester on fully accessible battery terminals and avoid testing immediately after charging or heavy cranking to prevent misleading results. For more accurate diagnostics, allow the battery to rest for several minutes after use or charging, and follow vehicle manufacturer safety precautions when accessing the battery. If results indicate high internal resistance or low state-of-charge, perform a confirmatory test or consult a professional for load testing and battery replacement options.

## FAQ

### How much does the Battery tester KONNWEI KW218 — 12V/6V cost, and is it available for purchase?

The price is 34.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 122 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 22.07.2026 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 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/10909654/60769841_large.webp