# Battery HP COSLIGHT515974 NCM 3.72Ah replacement for compatible HP laptops, 3.72 Ah capacity, NCM chemistry

**URL:** https://aio.lv/en/product--hp-l11421-ac2--3961331
**Data updated:** 2026-02-12 09:58 (EET)
**Category:** Portable Device Batteries
**Manufacturer:** HP
**Manufacturer code:** L11421-AC2
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 78.99 €
**Prices and availability valid until:** 2026-08-05 23:59
**Price without VAT (21%):** 65.28 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--hp-l11421-ac2--3961331

## 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

Rechargeable laptop battery HP COSLIGHT515974 (MPN L11421-AC2) with NCM (nickel–cobalt–manganese) cell chemistry and 3.72 Ah capacity. Designed as a replacement for compatible HP portable devices, it restores portable power for everyday use, travel, and work. Suitable for maintaining runtime for typical office tasks, web browsing and light multimedia. Install as a direct swap where compatible.

## Long description

Rechargeable battery HP COSLIGHT515974 NCM 3.72Ah is a direct-replacement power unit designed for compatible HP laptops. With NCM (nickel–cobalt–manganese) cell chemistry and a nominal capacity of 3.72 Ah, this battery restores portable power for everyday computing tasks, travel and remote work. It is intended for use as a like-for-like swap in devices that accept the same physical form factor and electrical specifications.
Advantages
The HP COSLIGHT515974 battery uses NCM cell chemistry to balance energy density and cycle life for typical laptop usage patterns. Its 3.72 Ah capacity provides sufficient runtime for office applications, web browsing and light multimedia playback. The replacement unit is designed for compatibility with the original mounting points and connector type, allowing straightforward installation when the model fits. The construction follows standard safety and thermal management practices for portable device batteries.
Suitable for
 Replacing a depleted battery in compatible HP notebook models
 Extending portable runtime for office productivity and web browsing
 Maintaining spare power for travel and field work
 Light multimedia playback and casual use away from mains power
Key specifications
 Cell chemistry: NCM (nickel–cobalt–manganese)
 Nominal capacity: 3.72 Ah
 Form factor: laptop replacement pack (same physical dimensions and connector as compatible models)
 Intended use: rechargeable portable device battery for compatible HP laptops
 Typical use case: office productivity, web browsing, light multimedia
How to use
Before installation, power off the laptop and disconnect any external power source. Remove the old battery according to the laptop manufacturer's service instructions and replace it with this HP COSLIGHT515974 unit, ensuring the connector and mounting points align correctly. After installation, charge the battery fully before first use to reach optimal performance. Use the laptop's battery management software, if available, to monitor charge level and cycle count.
Usage recommendations
Store and operate the battery at moderate temperatures; avoid prolonged exposure to high heat. For prolonged storage, charge to approximately 40–60% and recharge every few months to preserve cell health. Use the battery only in devices for which it is mechanically and electrically compatible, and follow the laptop manufacturer's safety guidance for battery replacement and disposal.

## FAQ

### How much does the Battery HP COSLIGHT515974 NCM 3.72Ah cost, and is it available for purchase?

The price is 78.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 2349 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/3961331/51474446_large.webp