# BTI laptop battery 50Wh 11.4V Li-Ion for Fujitsu LifeBook U758 U757 U748 U747 (model FPCBP531AP / FPB0338S-BTI)

**URL:** https://aio.lv/en/product--bti-fpb0338s-bti--11823358
**Data updated:** 2026-03-09 11:12 (EET)
**Category:** Portable Device Batteries
**Manufacturer:** BTI
**Manufacturer code:** FPB0338S-BTI
**EAN:** 5059902025111
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 270.49 €
**Prices and availability valid until:** 2026-08-05 23:59
**Price without VAT (21%):** 223.55 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--bti-fpb0338s-bti--11823358

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 27.07.2026 | free |
| Pickup points | 30.07.2026 | 1.89 EUR |
| Courier delivery to door | 30.07.2026 | 4.99 EUR |

## Summary description

Replacement BTI laptop battery compatible with Fujitsu LifeBook U758, U757 (CP743228/CP743229), U748 and U747 models. Single Li‑Ion battery with 50 Wh (3490 mAh) capacity and 11.4 V nominal voltage. Black colour pack supplied as one piece. Suited for restoring portable power, extending runtime and replacing worn or faulty original batteries.

## Long description

Replacement BTI laptop battery compatible with Fujitsu LifeBook U758, U757, U748 and U747 models. This single-pack Li‑Ion battery delivers 50 Wh (approximately 3490 mAh) capacity at a nominal voltage of 11.4 V in a black housing. It is designed to restore portable power and extend runtime for notebooks where the original battery is worn, degraded, or no longer holding sufficient charge.
Advantages
The battery uses lithium‑ion chemistry for a balance of energy density and weight, providing a practical runtime increase without adding excessive bulk. Its form factor and connector compatibility match the specified Fujitsu LifeBook models to ensure straightforward replacement and stable power delivery. Supplied as one complete unit, the pack is suitable for direct swap-in installation and supports typical laptop charging circuitry.
Suitable for
 Replacement of a depleted or failing battery in Fujitsu LifeBook U758, U757, U748, U747 laptops
 Extending mobile working time for productivity tasks away from mains power
 Maintaining reliable battery-backed operation for presentations or fieldwork
Key specifications
 Battery type: Lithium‑Ion (Li‑Ion)
 Capacity: 50 Wh (approximately 3490 mAh)
 Nominal voltage: 11.4 V
 Colour: Black
 Pack quantity: 1 piece
 Compatibility: Designed for selected Fujitsu LifeBook U7xx series laptops
How to use
Power down the laptop and disconnect the mains adapter before starting the replacement. Remove the old battery following the laptop manufacturer’s instructions, then insert the BTI replacement pack in the same orientation until it locks into place. Reconnect the mains adapter and allow the battery to charge fully before first use to reach optimal calibration. After installation, verify battery status in the operating system or BIOS battery utility.
Usage recommendations
For safe and long-lasting operation, avoid exposing the battery to extreme temperatures, moisture or mechanical shock. Use the laptop’s original or compatible charger and follow standard battery care: charge cycles as needed, store at around 40–60% charge for prolonged storage, and replace the battery when runtime becomes significantly reduced.

## Specifications

| Feature | Value |
|---|---|
| Quantity per pack | 1 pc(s) |

### Battery

| Feature | Value |
|---|---|
| Battery technology | Lithium-Ion (Li-Ion) |
| Battery capacity | 3490 mAh |
| Number of battery cells | 4 |
| Battery voltage | 11.4 V |
| Battery capacity | 50 Wh |
| Number of batteries included | 1 pc(s) |
| Product colour | Black |

### Technical details

| Feature | Value |
|---|---|
| Brand compatibility | Fujitsu |

## FAQ

### How much does the BTI 50Wh Li‑Ion battery for Fujitsu LifeBook U758 U757 cost, and is it available for purchase?

The price is 270.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 22 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 27.07.2026 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, Installment. All transactions are 100% secure and encrypted.

### Can BTI 50Wh Li‑Ion battery for Fujitsu LifeBook U758 U757 be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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 BTI 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 BTI 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/11823358/67289868_large.webp