# Battery Fujitsu CP809642-XX LIFEBOOK U728 U727 U729

**URL:** https://aio.lv/en/product--fujitsu-cp809642-xx--10556960
**Data updated:** 2026-01-13 21:34 (EET)
**Category:** Portable Device Batteries
**Manufacturer:** FUJITSU
**Manufacturer code:** CP809642-XX
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 382.49 €
**Prices and availability valid until:** 2026-07-20 23:59
**Price without VAT (21%):** 316.11 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--fujitsu-cp809642-xx--10556960

## 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

The Fujitsu CP809642-XX battery is designed for LIFEBOOK U728, U727, and U729 models. It provides reliable power for your laptop, ensuring extended usage time and optimal performance. This battery is a perfect replacement for your original battery, maintaining the quality and efficiency you expect from Fujitsu products.

## Long description

The Fujitsu CP809642-XX LIFEBOOK U728 U727 U729 battery is a replacement internal battery compatible with selected Fujitsu LIFEBOOK ultrabooks. Designed to match the original equipment specifications, this 4170 mAh battery restores portable power to Fujitsu U728, U727 and U729 models, enabling continued mobile use and stable operation when mains power is unavailable.
Advantages
This battery offers a capacity of 4170 mAh to provide extended runtime compared with a depleted cell, while maintaining compatibility with the laptop's power management system. It is manufactured to fit the physical dimensions and connector requirements of the LIFEBOOK U728, U727 and U729, ensuring correct installation and reliable contact. The unit is intended as a direct replacement and supports normal charging cycles and system reporting for battery level and health.
Suitable for (tasks / use cases)
 Replacing a worn or failing internal battery in Fujitsu LIFEBOOK U728, U727, U729
 Restoring mobile runtime for business travel and remote work
 Maintaining uninterrupted operation during short power outages or while moving between outlets
 Keeping a backup battery option for technicians and IT maintenance
Key specifications
 Battery type: internal lithium-ion replacement battery
 Capacity: 4170 mAh
 Compatibility: Fujitsu LIFEBOOK U728, U727, U729 models
 Form factor: model-specific internal pack designed for direct fit and connector alignment
How to use
Power down the laptop, disconnect any external power source and remove external peripherals before replacing the battery. Follow the manufacturer's service instructions or a qualified technician's guidance to open the laptop base, disconnect the existing battery connector, and install the Fujitsu CP809642-XX battery in the corresponding compartment. Reconnect the battery cable, reassemble the device, then connect the AC adapter to perform an initial charge as recommended by the laptop's power management guidelines. After installation, verify battery recognition in the operating system and allow a full charge-discharge cycle to calibrate battery level reporting.
Usage recommendations
Use the battery only in compatible Fujitsu LIFEBOOK models listed. Charge the battery using the original or manufacturer-approved AC adapter. Avoid exposure to extreme temperatures and physical damage. If you are not experienced with internal laptop repairs, have the battery replaced by an authorized service provider to prevent damage to the device and ensure safety.

## Specifications

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

### Battery

| Feature | Value |
|---|---|
| Battery capacity | 4170 mAh |
| Number of battery cells | 3 |
| Battery capacity | 45 Wh |

### Technical details

| Feature | Value |
|---|---|
| Type | Battery |
| Compatibility | LIFEBOOK U728, LIFEBOOK U727 6TH GEN, LIFEBOOK U729 |
| Brand compatibility | Fujitsu |

## FAQ

### How much does the Battery Fujitsu CP809642-XX LIFEBOOK U728 U727 U729 cost, and is it available for purchase?

The price is 382.49 € (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 FUJITSU 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 FUJITSU 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 capacity, 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/10556960/65719761_large.webp