# Battery pack 18V 4.0Ah Li‑Ion for power tools, extra digital TB921966

**URL:** https://aio.lv/en/product--extra-digital-tb921966--10964632
**Data updated:** 2025-12-30 14:57 (EET)
**Category:** Power tool batteries
**Manufacturer:** extra digital
**Manufacturer code:** TB921966
**EAN:** 9990000921966
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 39.99 €
**Prices and availability valid until:** 2026-07-11 23:59
**Price without VAT (21%):** 33.05 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--extra-digital-tb921966--10964632

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 18.06.2026 | free |
| Pickup points | 25.06.2026 | 1.99 EUR |
| Courier delivery to door | 25.06.2026 | 4.99 EUR |

## Summary description

Rechargeable 18V 4.0Ah Li‑Ion battery pack compatible with cordless power tools. Model TB921966 from extra digital provides portable power for drilling, fastening and other jobsite tasks. The 4.0Ah capacity offers extended runtime compared to lower‑capacity cells, while Li‑Ion chemistry ensures low self‑discharge and no memory effect. Suitable as a replacement or spare for compatible 18V tool systems.

## Long description

Extra digital 18V 4.0Ah Li‑Ion replacement battery (model TB921966) provides portable power for cordless power tools. Designed as a spare or replacement for compatible 18V Einhell tools and other systems that accept the same battery format, the pack delivers higher runtime than lower‑capacity cells while Li‑Ion chemistry offers low self‑discharge and no memory effect. The battery is intended for general jobsite tasks such as drilling and fastening and comes with a 12‑month warranty.
Advantages
The battery features a 4.0Ah capacity for extended runtime and uses lithium‑ion cells that maintain low self‑discharge. It is compatible with the 18V Einhell tool range and is suitable as a replacement or spare unit. The pack is lightweight compared with older battery chemistries and requires no special storage to avoid memory loss.
Suitable for
Cordless drilling and screwdriving
Light to medium workshop and jobsite tasks
Use as a spare or replacement battery for 18V Einhell tools
Key specifications
Brand: extra digital
Model / MPN: TB921966
Type: Li‑Ion
Voltage: 18V
Capacity: 4.0Ah
Compatibility: For all Einhell 18V tools (battery format dependent)
Warranty: 12 months
How to use
Charge the battery with a compatible 18V charger before first use. Insert the battery into the tool until it locks in place, then operate the tool according to the tool manufacturer’s instructions. After use, remove the battery and store it in a cool, dry place. Follow the charger and tool manuals for safe charging and handling.
Usage recommendations
To maximise battery life, avoid deep discharges where possible, store partially charged for long‑term storage, and use a charger recommended for 18V Li‑Ion packs. Do not expose the battery to high temperatures or moisture.

## FAQ

### How much does the Battery 18V 4.0Ah Li‑Ion extra digital TB921966 cost, and is it available for purchase?

The price is 39.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 7 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 18.06.2026 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 extra digital 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 extra digital 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/10964632/61383702_large.webp