# Battery Lenovo 42Wh 3-cell lithium-ion 5B11F21942 — replacement laptop battery, 42 Wh, 3-cell

**URL:** https://aio.lv/en/product--lenovo-5b11f21942--5094805
**Data updated:** 2026-02-12 14:18 (EET)
**Category:** Portable Device Batteries
**Manufacturer:** Lenovo
**Manufacturer code:** 5B11F21942
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 72.99 €
**Prices and availability valid until:** 2026-07-25 23:59
**Price without VAT (21%):** 60.32 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--lenovo-5b11f21942--5094805

## 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

Replacement laptop battery Lenovo 5B11F21942, a 3-cell lithium‑ion pack with 42 Wh capacity. Designed to replace original batteries in compatible Lenovo notebooks, it restores battery-powered runtime for mobile use. Suitable for on-the-go work, travel, and as a spare unit; offers standard charging behavior and straightforward installation in supported models.

## Long description

Replacement laptop battery Lenovo 5B11F21942 is a 3-cell lithium‑ion pack with 42 Wh capacity designed to restore battery-powered runtime in compatible Lenovo notebooks. The battery provides the standard charging and discharge behavior expected from lithium‑ion laptop cells and is intended for users who need to replace a worn-out battery or carry a spare for travel and mobile work. Installation is straightforward in supported models and the unit follows the same physical form factor as original compatible batteries.
Advantages
This 42 Wh 3-cell lithium‑ion battery offers reliable replacement power that matches the expected runtime for devices designed for this capacity. It delivers predictable charging cycles and stable voltage output to maintain normal laptop performance on battery power. The pack is lightweight and compact, making it suitable as a spare for travel without significantly increasing laptop carry weight. Its design aims for straightforward fitment and conventional charging behavior with compatible Lenovo notebooks.
Suitable for
 Replacing a depleted or failing battery in compatible Lenovo laptops
 Extending mobile use for business travel or remote work
 Keeping as a spare battery for fieldwork or presentations
Key specifications
 Battery chemistry: Lithium‑ion (Li‑ion)
 Cell count: 3 cells
 Rated energy: 42 Wh
 Typical use: Internal laptop battery pack for compatible notebook models
 Form factor: Compact, lightweight replacement pack matching original battery dimensions
How to use
Power down the laptop and disconnect any external power source before replacing the battery. Remove the existing battery following the device manufacturer's instructions, insert the replacement pack until it seats securely, and reconnect power. After installation, allow the new battery to charge fully before first use to ensure calibration of the battery management system. Normal charging and battery status reporting will be handled by the notebook's firmware and charging circuitry.
Usage recommendations
For best long-term performance, avoid exposing the battery to extreme temperatures, perform regular charge/discharge cycles, and use the laptop's built-in battery management features. If the device will be stored for an extended period, store the battery at roughly 40–60% charge in a cool, dry place and check its charge level periodically.

## FAQ

### How much does the Lenovo battery 5B11F21942 — 42Wh 3-cell cost, and is it available for purchase?

The price is 72.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 24 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

## Image

https://aio.lv/img/cache/product/5094805/68543689_large.webp