# Battery Pack for HP Pavilion 15-CS1007NB, 11.34V 3440mAh, model L11421-1C3

**URL:** https://aio.lv/en/product--hp-l11421-1c3--3961317
**Data updated:** 2026-02-12 09:58 (EET)
**Category:** Portable Device Batteries
**Manufacturer:** HP
**Manufacturer code:** L11421-1C3
**EAN:** 5704174214199
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 78.49 €
**Prices and availability valid until:** 2026-08-04 23:59
**Price without VAT (21%):** 64.87 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--hp-l11421-1c3--3961317

## 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 battery pack compatible with HP Pavilion 15-CS1007NB, rated 11.34V and 3440mAh (model L11421-1C3). Designed for use as an internal laptop battery to restore runtime and mobility. Ideal for replacing worn or failing original cells, it supports everyday tasks such as web browsing, office work, and light multimedia. Install with proper safety precautions.

## Long description

Replacement battery pack compatible with HP Pavilion 15-CS1007NB, rated 11.34V and 3440mAh (model L11421-1C3). This internal laptop battery is designed to restore runtime and mobility for users whose original battery has degraded. It provides a balance between capacity and size to support everyday activities such as web browsing, office applications and light multimedia playback when installed according to manufacturer guidelines.
Advantages
The battery pack delivers the specified voltage and capacity to re-establish predictable operating time for the HP Pavilion 15-CS1007NB. It is designed for internal installation and matches the physical dimensions and connector alignment required by the laptop, allowing a straightforward replacement. Using a fresh battery reduces unexpected shutdowns and improves portability compared with a worn cell. The pack is intended for use with the laptop's original charging system and power management settings.
Suitable for
 Replacing a degraded internal battery in HP Pavilion 15-CS1007NB
 Restoring typical laptop runtime for web browsing and office work
 Improving portability for light multimedia viewing and remote work
 Servicing laptops where the original battery no longer holds charge
Key specifications
 Nominal voltage: 11.34 V
 Rated capacity: 3440 mAh
 Battery type: rechargeable lithium-based laptop pack
 Intended form factor: internal notebook battery compatible with HP Pavilion 15 series
 Typical use: daily productivity and light multimedia
How to use
Before installation, power down the laptop, disconnect the external power adapter and follow ESD precautions. Remove the laptop base cover using the appropriate tools, locate the existing battery pack and disconnect its cable from the motherboard. Install the replacement battery by aligning the connector and securing any mounting screws or brackets previously removed. Reassemble the base, reconnect the power adapter and allow the battery to charge fully according to the laptop's charging indicator before normal use. If unfamiliar with internal repairs, consult a qualified service technician.
Usage recommendations
Use the battery with the laptop's original charger and settings. Avoid exposure to high temperatures and humidity, and do not puncture or disassemble the pack. Calibrate charge reporting periodically by charging to full and then discharging to a low level once every few months to maintain accurate battery meter readings.

## FAQ

### How much does the Battery for HP Pavilion 15-CS1007NB L11421-1C3 cost, and is it available for purchase?

The price is 78.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 2477 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: 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 HP 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 HP 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

https://aio.lv/img/cache/product/3961317/51474432_large.webp