# Battery for Lenovo T400s by extra digital, model NB480739, 4400mAh, compatible with 51J0497

**URL:** https://aio.lv/en/product--extra-digital-nb480739--4113505
**Data updated:** 2025-12-29 15:39 (EET)
**Category:** Portable Device Batteries
**Manufacturer:** extra digital
**Manufacturer code:** NB480739
**EAN:** 9990000480739
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 35.99 €
**Prices and availability valid until:** 2026-07-26 23:59
**Price without VAT (21%):** 29.74 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--extra-digital-nb480739--4113505

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 03.07.2026 | free |
| Pickup points | 08.07.2026 | 1.89 EUR |
| Courier delivery to door | 08.07.2026 | 4.99 EUR |

## Summary description

Replacement notebook battery for Lenovo T400s by extra digital, model NB480739 (4400mAh), compatible with reference 51J0497. Designed to restore portable power for extended use, it suits users needing a spare or replacement battery for mobile productivity, travel, or fieldwork. Provides specified capacity for typical laptop runtime and straightforward installation without modifying the device.

## Long description

Replacement Li-ion notebook battery compatible with Lenovo ThinkPad T400s and T410s series. Manufactured with balanced rechargeable cells to provide stable capacity and long service life. The battery does not suffer from the memory effect and can be recharged at any convenient time. Compatible with original references such as 51J0497 and other listed part numbers and supplied with a 12‑month warranty from Extra Digital.
Advantages
The battery uses Li‑ion cells that deliver consistent voltage and capacity, enabling reliable portable power for the supported ThinkPad models. Its balanced construction helps extend overall battery life and maintain maximum usable capacity during normal use. Recharge at any time without concern for memory effect.
Suitable for
Lenovo ThinkPad T400s (multiple submodels)
Lenovo ThinkPad T410s and T410si
Replacement of original battery reference 51J0497 and compatible part numbers
Key specifications
Capacity: 3600 mAh (as specified in source)
Cell type: Li‑ion
Voltage: 10.8–11.1 V
Manufacturer: Extra Digital
Warranty: 12 months
How to use
Turn off the laptop and remove any external power source. Remove the original battery according to the laptop manufacturer’s instructions and insert the replacement battery until it locks in place. Reconnect external power and charge the battery fully before first use. Use the laptop’s power management settings to monitor charge levels and battery health.
Usage recommendations
For best results, verify compatibility with your exact laptop submodel and original part number before purchase; if in doubt, consult a product specialist. Store the battery in a cool, dry place and avoid prolonged exposure to high temperatures.

## FAQ

### How much does the Battery extra digital NB480739 for Lenovo T400s cost, and is it available for purchase?

The price is 35.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 1 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 03.07.2026 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 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/4113505/10509956_large.webp