# Battery Lenovo 42T4845

**URL:** https://aio.lv/en/product--lenovo-42t4845--1853896
**Data updated:** 2026-01-13 17:33 (EET)
**Category:** Portable Device Batteries
**Manufacturer:** Lenovo
**Manufacturer code:** 42T4845
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 156.99 €
**Prices and availability valid until:** 2026-07-22 23:59
**Price without VAT (21%):** 129.74 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--lenovo-42t4845--1853896

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 09.07.2026 | free |
| Pickup points | 14.07.2026 | 1.89 EUR |
| Courier delivery to door | 14.07.2026 | 4.99 EUR |

## Summary description

The Lenovo 42T4845 battery is designed for reliable performance and longevity. It offers a capacity of 4400mAh, ensuring your laptop stays powered for extended periods. This lithium-ion battery is compatible with various Lenovo laptop models, providing a perfect fit and optimal performance. With built-in safety features, it protects against overheating and overcharging, making it a safe choice for your device.

## Long description

The Lenovo 42T4845 battery is a rechargeable Lithium-Ion battery designed to replace or upgrade the internal power source of compatible Lenovo laptops. Finished in black, it provides a durable, factory-matching appearance and is intended to restore portability and runtime to systems that require a battery of this specification. The battery is engineered for stable output and includes built-in safety measures to reduce the risk of overheating and overcharging.
Advantages
This Lithium-Ion battery delivers a balance of energy density and longevity while maintaining a compact form factor suitable for laptop integration. With a rated capacity of 3900 mAh, it offers extended run times compared with depleted cells and supports typical charging cycles expected from modern laptop batteries. The black finish integrates with common Lenovo laptop designs, and the built-in safety protections contribute to reliable day-to-day operation.
Suitable for
 Replacing a worn or failing internal battery in compatible Lenovo laptops
 Extending on-battery working time for mobile professionals and students
 Maintaining system mobility during travel or remote work where mains power is unavailable
 Use in environments requiring standard laptop runtime without external power
Key specifications
 Battery technology: Lithium-Ion (Li-Ion)
 Battery capacity: 3900 mAh
 Product colour: Black
 Form factor: Internal laptop battery (model-specific physical dimensions and connector)
 Safety features: Overheat and overcharge protection integrated
How to use
Power down the laptop, disconnect any external power source and remove the bottom cover or battery access panel according to the laptop manufacturer’s instructions. Replace the existing battery with the Lenovo 42T4845, ensuring proper alignment of contacts and secure mounting. Reinstall the cover and reconnect the mains adapter. Charge the battery fully before first use to allow the battery management system to calibrate and report accurate charge levels.
Usage recommendations
Operate and charge the battery within the laptop manufacturer’s specified temperature range, avoid exposing the battery to prolonged high temperatures, and use the original or certified compatible charger. For best long-term performance, avoid keeping the battery at full charge for extended periods when the laptop is stored; store at around 40–60% charge if the device will be unused for several weeks or months.

## Specifications

### Battery

| Feature | Value |
|---|---|
| Battery technology | Lithium-Ion (Li-Ion) |
| Battery capacity | 3900 mAh |
| Number of battery cells | 6 |
| Battery voltage | 11.1 V |
| Number of batteries included | 1 pc(s) |
| Product colour | Black |

### Technical details

| Feature | Value |
|---|---|
| Type | Battery |
| Brand compatibility | Lenovo |

## FAQ

### How much does the Battery Lenovo 42T4845 cost, and is it available for purchase?

The price is 156.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 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 09.07.2026 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: Cash payment, 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 Lenovo 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 Lenovo 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

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: battery technology, battery capacity, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

## Image

https://aio.lv/img/cache/product/1853896/55865537_large.webp