# Replacement battery Cameron Sino for Garmin Fenix 3 / Fenix 3 HR, model SB7974, compatible with original form factor

**URL:** https://aio.lv/en/product--cameron-sino-sb7974--11504568
**Data updated:** 2026-04-28 16:22 (EEST)
**Category:** Portable Device Batteries
**Manufacturer:** Cameron Sino
**Manufacturer code:** SB7974
**EAN:** 4894128137818
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 22.49 €
**Prices and availability valid until:** 2026-07-19 23:59
**Price without VAT (21%):** 18.59 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--cameron-sino-sb7974--11504568

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 10.07.2026 | free |
| Pickup points | 15.07.2026 | 1.99 EUR |
| Courier delivery to door | 15.07.2026 | 4.99 EUR |

## Summary description

Replacement battery by Cameron Sino, model SB7974, designed for Garmin Fenix 3 and Fenix 3 HR smartwatches. This direct-fit cell matches the original battery's form factor for straightforward replacement, restoring portable power for daily use, GPS activities and multisport tracking. Ideal for users needing to replace a worn or failing battery to recover device runtime and functionality.

## Long description

Replacement battery Cameron Sino for Garmin Fenix 3 / Fenix 3 HR, model SB7974, is a drop-in rechargeable cell designed to restore runtime and daily operation of compatible Garmin multisport smartwatches. The battery follows the original form factor to enable a straightforward swap with existing internal connectors and mounting points, offering a practical solution when the factory battery shows reduced capacity or fails to hold charge.
Advantages
This Cameron Sino replacement cell closely matches the original battery's shape and dimensions to simplify installation without modifications to the watch housing. It provides stable voltage suitable for the device's power management and is intended to return the watch to normal operating time for GPS tracking, heart-rate monitoring, and everyday smartwatch features. The design emphasizes compatibility and ease of fit to reduce repair time and complexity.
Suitable for
Restoring battery life in Garmin Fenix 3 and Fenix 3 HR watches
DIY repairs by technicians or experienced users replacing internal cells
Maintaining device functionality for outdoor activities and multisport tracking
Replacing a worn, swollen, or no-longer-holding-charge battery
Key specifications
Form factor: direct-fit replacement matching original battery shape
Chemistry: rechargeable lithium-based cell compatible with smartwatch electronics
Intended use: internal power source for Garmin Fenix 3 series smartwatches
Connector type: designed to align with original internal connector and mounting points
How to use
Install the replacement battery by opening the watch back using appropriate precision tools, detaching the old cell from its connector, and securing the new Cameron Sino cell in the same orientation and mounting position. Ensure all seals and gaskets are inspected and replaced as needed to maintain water resistance. After installation, charge the watch fully and verify normal operation of timekeeping, GPS functions, and heart-rate sensing before reassembling fully.
Usage recommendations
For safe and reliable results, use proper watch repair tools and follow anti-static precautions. If unsure about internal disassembly or water-resistance resealing, consider professional service. Recycle the removed battery according to local regulations for lithium-based cells.

## FAQ

### How much does the Cameron Sino battery SB7974 for Garmin Fenix 3 / 3 HR cost, and is it available for purchase?

The price is 22.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 10 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 10.07.2026 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. 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 Cameron Sino 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 Cameron Sino 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/11504568/66284442_large.webp