# Replacement 3‑cell Li‑Ion laptop battery Frogum FPB0337S-BTI, 10.8V 4170mAh (45Wh) for Fujitsu Lifebook U727/U728/U729/U729X

**URL:** https://aio.lv/en/product--frogum-fpb0337s-bti--11829606
**Data updated:** 2026-03-09 14:38 (EET)
**Category:** Portable Device Batteries
**Manufacturer:** Frogum
**Manufacturer code:** FPB0337S-BTI
**EAN:** 886734893107
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 220.49 €
**Prices and availability valid until:** 2026-07-29 23:59
**Price without VAT (21%):** 182.22 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--frogum-fpb0337s-bti--11829606

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 20.07.2026 | free |
| Pickup points | 23.07.2026 | 1.89 EUR |
| Courier delivery to door | 23.07.2026 | 4.99 EUR |

## Summary description

Replacement 3‑cell Lithium‑Ion (Li‑Ion) laptop battery compatible with Fujitsu Lifebook U727, U728, U729, U729X (also P727/P728). Nominal voltage 10.8 V, capacity 4170 mAh (45 Wh). Single unit, black finish, designed to restore mobile power for on‑the‑go use, system boot, and normal laptop workloads. Suitable for swaps and repair of worn or failing original batteries.

## Long description

Replacement 3-cell Li‑Ion laptop battery Frogum FPB0337S-BTI is designed as a direct-fit power source for Fujitsu Lifebook U727, U728, U729, U729X and compatible P727/P728 models. With a nominal voltage of 10.8 V and a rated capacity of 4170 mAh (45 Wh), this single-unit black battery restores portable operation for everyday productivity tasks, system boot and mobile use. The pack uses Lithium‑Ion chemistry and is intended for swapping worn or failing original batteries to recover usable runtime.
Advantages
This Frogum replacement battery provides a balance of capacity and compatibility, offering 4170 mAh nominal energy to extend unplugged usage compared with depleted cells. Its direct-fit design ensures straightforward installation without modifications to the notebook, while the Li‑Ion chemistry delivers stable discharge characteristics and wide compatibility with Fujitsu Lifebook power management. The single, compact black pack is convenient for field replacements and repairs.
Suitable for
 Replacing a worn or dying battery in Fujitsu Lifebook U727/U728/U729/U729X and P727/P728 laptops
 On‑the‑go productivity where restored battery runtime is required
 Field service and laptop repair workshops performing battery swaps
 Users needing a single spare battery for travel or backup
Key specifications
 Battery technology: Lithium‑Ion (Li‑Ion)
 Nominal voltage: 10.8 V
 Rated capacity: 4170 mAh (45 Wh)
 Cell count: 3‑cell pack
 Colour: Black
 Quantity included: 1 unit
How to use
Before installation, power off the laptop and disconnect any external power source. Remove the existing battery following the laptop manufacturer’s service instructions or the user manual for the Lifebook model. Fit the Frogum FPB0337S-BTI into the battery bay until it locks in place, then reconnect mains power and charge the battery fully before first use to calibrate the system’s charge reporting. Observe correct polarity and secure mounting to avoid intermittent contact.
Usage recommendations
Use only with compatible Fujitsu Lifebook models listed. Charge and store the battery at moderate temperatures, avoid prolonged exposure to high heat or moisture, and follow standard Li‑Ion handling precautions. If the battery shows swelling, excessive heat, or abnormal behaviour, discontinue use and recycle or dispose of it according to local regulations.

## Specifications

### Battery

| Feature | Value |
|---|---|
| Compatible products | Fujitsu Lifebook U727, U728, U729, U729X Series
Fujitsu LifeBook P728, P727 Series. |
| Battery technology | Lithium-Ion (Li-Ion) |
| Battery capacity | 4170 mAh |
| Number of battery cells | 3 |
| Battery voltage | 10.8 V |
| Battery capacity | 45 Wh |
| Number of batteries included | 1 pc(s) |
| Product colour | Black |

### Technical details

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

## FAQ

### How much does the Frogum FPB0337S-BTI 3‑cell Li‑Ion battery for Fujitsu Lifebook cost, and is it available for purchase?

The price is 220.49 € (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 20.07.2026 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 Frogum FPB0337S-BTI 3‑cell Li‑Ion battery for Fujitsu Lifebook 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 Frogum 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 Frogum 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: compatible products, 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.

### Where can I download the instructions for Frogum FPB0337S-BTI 3‑cell Li‑Ion battery for Fujitsu Lifebook?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/11829606/67284297_large.webp