# Battery Lenovo 57Wh 3-cell lithium-ion 5B11F21946 replacement battery

**URL:** https://aio.lv/en/product--lenovo-5b11f21946--10628201
**Data updated:** 2026-02-12 22:01 (EET)
**Category:** Portable Device Batteries
**Manufacturer:** Lenovo
**Manufacturer code:** 5B11F21946
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 134.49 €
**Prices and availability valid until:** 2026-07-22 23:59
**Price without VAT (21%):** 111.15 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--lenovo-5b11f21946--10628201

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 23.07.2026 | free |
| Pickup points | 28.07.2026 | 1.89 EUR |
| Courier delivery to door | 28.07.2026 | 4.99 EUR |

## Summary description

Replacement laptop battery Lenovo 57Wh 3-cell lithium-ion (model 5B11F21946). Provides 57 watt-hours capacity in a compact 3-cell design for compatible Lenovo notebooks. Intended as a direct swap to restore runtime, suitable for mobile work, travel and everyday use. Install according to manufacturer instructions and dispose of properly.

## Long description

Replacement battery Lenovo 57Wh 3-cell lithium-ion 5B11F21946 provides 57 watt-hours of energy in a compact three-cell format designed for compatible Lenovo notebooks. This battery restores mobile runtime for devices that use the same size and connector type, offering a balance between capacity and portability. Intended as a direct swap, it is suitable for users who need to replace a worn or failing battery to regain reliable untethered operation.
Advantages
The 57Wh capacity delivers extended run time compared with lower-capacity units while keeping the battery size and weight moderate. The 3-cell lithium-ion chemistry provides stable discharge characteristics and predictable performance for typical office, web and multimedia tasks. Designed for compatibility with designated Lenovo laptop models, it supports straightforward installation and normal charging behavior when used with the original charger and power management settings. The replacement battery is manufactured to meet safety and performance expectations for laptop power modules.
Suitable for (tasks / use cases)
Mobile productivity: working on documents, spreadsheets and presentations away from a power outlet
Business travel: meetings, flights and remote work where extended battery life is required
Everyday use: web browsing, email, video calls and streaming while on the move
Temporary replacement: restoring runtime for a notebook with an aged or defective original battery
Key specifications
Battery chemistry: lithium-ion (Li-ion)
Nominal capacity: 57 watt-hours (Wh)
Cell count: 3-cell configuration
Form factor: notebook internal replacement battery, compact profile
Typical applications: compatible Lenovo laptop models requiring this physical size and connector
How to use
Power down the notebook and disconnect any external power sources before beginning replacement. Remove the back cover or battery access panel according to the laptop manufacturer’s instructions to expose the battery compartment. Disconnect the battery cable from the motherboard and remove the old battery, then position the replacement battery in the compartment and reconnect the cable securely. Reassemble the laptop and charge the new battery fully before first use. Follow Lenovo’s documented service and safety instructions when performing the replacement.
Usage recommendations
Use the battery with the original or compatible Lenovo charger and avoid exposing the battery to extreme temperatures or moisture. Calibrate battery reporting periodically by charging to full and then discharging to a low charge level according to the device manual. Do not attempt to disassemble the battery pack; recycle or dispose of the depleted battery following local regulations and manufacturer guidance.

## FAQ

### How much does the Lenovo battery 57Wh 3-cell 5B11F21946 cost, and is it available for purchase?

The price is 134.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 3 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 23.07.2026 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. 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

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