# Rechargeable battery NAC B18-40-S 18 V 4.0 Ah for cordless power tools

**URL:** https://aio.lv/en/product--nac-b18-40-s--10886086
**Data updated:** 2026-03-20 09:47 (EET)
**Category:** Power tool batteries
**Manufacturer:** NAC
**Manufacturer code:** B18-40-S
**EAN:** 5902490741829
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 46.99 €
**Prices and availability valid until:** 2026-07-18 23:59
**Price without VAT (21%):** 38.83 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--nac-b18-40-s--10886086

## 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 | 1.99 EUR |
| Courier delivery to door | 15.07.2026 | 4.99 EUR |

## Summary description

NAC B18-40-S is a rechargeable 18 V 4.0 Ah battery designed for cordless power tools. It provides portable power for drills, drivers and similar devices compatible with the NAC 18 V platform. Key parameters: nominal voltage 18 V and capacity 4.0 Ah, intended to extend runtime and enable continuous work on-site or in workshops.

## Long description

NAC B18-40-S is a rechargeable 18 V 4.0 Ah battery designed for cordless power tools within the NAC 18 V platform. It provides steady DC power to compatible drills, drivers and other handheld tools, extending runtime for onsite jobs and workshop tasks. The compact battery pack is intended to replace depleted cells quickly and restore full operating time without wired power.
Advantages
The battery combines a nominal voltage of 18 V with 4.0 Ah capacity to deliver a balance of power and runtime suitable for general construction and maintenance work. Its rechargeable design allows multiple charge cycles, reducing the need for frequent battery swaps. The pack is compatible with NAC 18 V cordless tools, enabling easy interchangeability across devices that share the same battery platform. Designed for portable use, it supports continuous work periods and helps maintain tool performance under load.
Suitable for
Drills and hammer drills requiring an 18 V power source
Impact drivers and screwdrivers used in assembly and repair
Cordless saws, sanders and rotary tools within the NAC 18 V range
Onsite maintenance, renovation and general construction tasks
Key specifications
Nominal voltage: 18 V
Rated capacity: 4.0 Ah
Rechargeable battery chemistry: compatible with NAC 18 V platform (check tool compatibility)
Intended use: portable power for cordless handheld tools
Form factor: detachable battery pack for slide-in or snap-in tool mounts
How to use
Charge the battery using a compatible NAC 18 V charger before first use. Insert the fully charged pack into the battery compartment of the compatible cordless tool until it clicks or locks into place. Operate the tool according to the manufacturer’s instructions. When runtime decreases, remove the pack and recharge it on the recommended charger; avoid forcing the pack into incompatible chargers or tools. Store the battery in a dry, cool place when not in use and follow safety guidance included with your tools and charger.
Usage recommendations
For longer battery life, charge the pack after use and avoid deep discharges where possible. Keep the contacts clean and use the battery within the temperature range specified by the tool and charger manufacturers. Replace the battery when capacity significantly decreases after many charge cycles.

## FAQ

### How much does the Battery NAC B18-40-S 18 V 4.0 Ah cost, and is it available for purchase?

The price is 46.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 8 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 NAC 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 NAC 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/10886086/65924009_large.webp