# Battery pack Lenovo 80Wh 4-cell lithium-ion 5B11K38743 for compatible laptops

**URL:** https://aio.lv/en/product--lenovo-5b11k38743--11829438
**Data updated:** 2026-03-09 14:38 (EET)
**Category:** Portable Device Batteries
**Manufacturer:** Lenovo
**Manufacturer code:** 5B11K38743
**EAN:** 5715063422786
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 131.99 €
**Prices and availability valid until:** 2026-08-17 23:59
**Price without VAT (21%):** 109.08 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--lenovo-5b11k38743--11829438

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 03.08.2026 | free |
| Pickup points | 06.08.2026 | 1.79 EUR |
| Courier delivery to door | 06.08.2026 | 4.99 EUR |

## Summary description

Replacement battery pack by Lenovo, 80Wh capacity, 4-cell lithium‑ion design (MPN 5B11K38743). Intended for use as a laptop internal or external swappable power source where compatible. Provides extended runtime for productivity and travel, supports standard charging circuits and battery management systems found in Lenovo notebooks.

## Long description

Lenovo 80Wh 4-cell lithium-ion battery pack is designed as a replacement power source for compatible Lenovo laptops. This internal or externally swappable battery provides an 80 watt-hour capacity in a compact 4-cell design, delivering extended runtime for mobile work and travel. The pack is compatible with standard charging circuits and battery management systems used in Lenovo notebooks and supports regular charging and discharge cycles while maintaining stable output voltage for proper system operation.
Advantages
The 80Wh capacity offers prolonged operating time compared with lower-capacity modules, reducing the need for frequent recharging during long work sessions or travel. Its 4-cell lithium‑ion chemistry provides a balance of energy density and weight, while compatibility with Lenovo charging and monitoring systems ensures safe charging, accurate battery reporting, and thermal management. The replacement pack restores portable power to devices where the original battery has degraded.
Suitable for
Extending laptop runtime for business travel and commuting
Replacing an aged or failing internal battery in compatible Lenovo notebooks
Onsite work where mains power is unavailable or intermittent
Students and professionals requiring longer unplugged use of their laptop
Key specifications
Battery chemistry: lithium‑ion (Li-ion)
Rated energy capacity: 80 Wh
Cell count: 4 cells
Form factor: laptop-compatible internal/external swappable pack
Designed for compatibility with Lenovo notebook charging and battery management systems
How to use
Install the battery according to the laptop manufacturer’s instructions: power down the laptop, disconnect the AC adapter, and either slide or secure the pack into the battery bay or connector. Once fitted, connect the AC adapter and allow the battery management system to initialize and calibrate if required. For externally swappable designs, ensure the battery latches are engaged. Monitor charging status through the operating system or Lenovo battery utility and avoid exposing the pack to high temperatures or physical damage.
Usage recommendations
Store and operate the battery between recommended temperature ranges, avoid complete discharge for prolonged periods, and use the laptop’s built-in battery management settings to optimise cycle life. Replace the pack if you notice significant capacity loss, swelling, or charging irregularities. Dispose of the battery responsibly according to local electronic waste regulations.

## FAQ

### How much does the Lenovo 80Wh 4-cell lithium-ion battery 5B11K38743 cost, and is it available for purchase?

The price is 131.99 € (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 03.08.2026 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

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