# Battery for cordless tool Könner & Söhnen KS 20V4-1, Li-Ion 20V 4000 mAh, 790 g

**URL:** https://aio.lv/en/product--konner-sohnen-ks20v4-1--12242807
**Data updated:** 2026-04-01 09:50 (EEST)
**Category:** Power tool batteries
**Manufacturer:** könner & söhnen
**Manufacturer code:** KS20V4-1
**EAN:** 4260405367214
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 45.99 €
**Prices and availability valid until:** 2026-07-31 23:59
**Price without VAT (21%):** 38.01 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--konner-sohnen-ks20v4-1--12242807

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 10.07.2026 | free |
| Pickup points | 15.07.2026 | 1.89 EUR |
| Courier delivery to door | 15.07.2026 | 4.99 EUR |

## Summary description

Rechargeable lithium‑ion battery for cordless tools, model Könner & Söhnen KS 20V4-1. Nominal voltage 20 V with 4000 mAh capacity and compact weight of 790 g. Designed to provide extended runtime for power tools, compatible with Könner & Söhnen 20 V platform. Useful for construction, DIY and maintenance tasks requiring portable power.

## Long description

The Battery for cordless tool Könner & Söhnen KS 20V4-1 is a rechargeable lithium‑ion pack designed for Könner & Söhnen 20 V platform devices. With a nominal voltage of 20 V and a capacity of 4000 mAh, this battery aims to provide extended runtime for handheld power and garden tools while weighing approximately 790 g. It features a compact design, integrated charge level indication and multi‑level protection to support safe operation across compatible cordless tools.
Advantages
This Li‑Ion battery offers a longer service life compared with older lead‑acid technology and does not require periodic maintenance. The unified 20 V platform compatibility allows one battery to be used across multiple Könner & Söhnen cordless devices, reducing the need to buy and store separate batteries. Built‑in protections include overcharge, over‑discharge, short circuit, overcurrent, over/under voltage and overtemperature safeguards, while the LED charge indicator helps monitor remaining power.
Suitable for
Handheld power tools in the Könner & Söhnen 20 V system (drills, impact drivers)
Garden tools in the Könner & Söhnen 20 V system (leaf blowers, trimmers)
DIY, maintenance and light construction tasks requiring portable battery power
Users who need to interchange a single battery between several cordless devices
Key specifications
Battery chemistry: Lithium‑ion (Li‑Ion)
Nominal voltage: 20 V
Capacity: 4000 mAh
Weight: approximately 790 g
Charge level indication: LED indicator
Protection: overcharge, over‑discharge, short circuit, overcurrent, over/under voltage, overtemperature
Color: black/grey
How to use
Insert the battery into the compatible Könner & Söhnen 20 V tool until it locks into place, ensuring the contacts align and the battery is fully seated. Charge the battery with the manufacturer’s recommended charger before first use and whenever the LED indicator shows low charge. Follow the tool manufacturer’s operating instructions for switching, load handling and safe use. Remove the battery from the tool before performing maintenance, cleaning or storage for extended periods.
Usage recommendations
Store and charge the battery in a dry, ventilated area at moderate temperature. Use the original charger to maintain battery life and avoid exposing the battery to extreme temperatures, moisture or mechanical damage. For prolonged storage, keep the battery at partial charge (around 40–60%) and check charge level periodically. Replace the battery if you notice significant loss of runtime or visible damage.

## Specifications

| Feature | Value |
|---|---|
| Battery technology | Lithium-Ion (Li-Ion) |
| Package weight | 800 g |
| Product colour | Black, Grey |
| Compatible products | KS 33LM-20V,
KS 43LM-40V,
KS CS20V-12,
KS CS40V-14,
KS CS40V-16,
KS BCT-20V,
KS BCT-40V,
KS HT-20V,
KS LBV-40V |
| Package depth | 125 mm |
| Package height | 75 mm |
| Package width | 85 mm |
| Battery weight | 790 g |
| Battery voltage | 20 V |
| Battery LED indicator | Yes |
| Power protection features | Under voltage, Short circuit, Overheating, Overdischarge, Overcharge, Over voltage, Over current |
| Number of batteries included | 1 pc(s) |
| Battery capacity | 4000 Ah |
| Product type | Battery |

## FAQ

### How much does the Könner & Söhnen KS 20V4-1 battery 20V 4000 mAh cost, and is it available for purchase?

The price is 45.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 28 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 10.07.2026 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 könner & söhnen 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 könner & söhnen 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

### Where can I download the instructions for Könner & Söhnen KS 20V4-1 battery 20V 4000 mAh?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/12242807/68142941_large.webp