# Battery Blue Star for Samsung Galaxy S2 (i9100/i9103/i9105) Li‑Ion 1800 mAh (analog EB-F1A2GBU)

**URL:** https://aio.lv/en/product--blue-star-bs-eb-f1a2gbu--226880
**Data updated:** 2026-02-28 18:57 (EET)
**Category:** Portable Device Batteries
**Manufacturer:** blue star
**Manufacturer code:** BS-EB-F1A2GBU
**EAN:** 5901737077196
**Warranty:** 1 Year
**Availability:** Out of stock

## Summary description

Replacement Blue Star Li‑Ion battery for Samsung Galaxy S2 models i9100, i9103 and i9105. Nominal capacity 1800 mAh, compatible with EB‑F1A2GBU form factor and electrical specifications. Designed for restoring battery life in portable use — calls, web browsing, apps and multimedia. Intended as a spare or replacement for worn original batteries.

## Long description

BlueStar is a brand offering a range of accessories for mobile phones and mobile devices. This product is a high-quality analog replacement Li-Ion battery with a nominal capacity of 1800 mAh, designed as a functional equivalent to the original battery for selected Samsung Galaxy S2 models.
Advantages
The battery provides equivalent functionality and warranty coverage comparable to original batteries, uses quality materials and components for reliable operation, and is compatible with several Samsung Galaxy S2 variants. It is intended as a direct replacement to restore device runtime without altering phone performance.
Suitable for
Replacing a worn or failing battery in Samsung i9100 Galaxy S2
Replacing a worn or failing battery in Samsung i9103 Galaxy Z
Replacing a worn or failing battery in Samsung i9105 Galaxy S II Plus
Key specifications
Battery type: Lithium-ion (Li-Ion)
Nominal capacity: 1800 mAh
Compatibility: selected Samsung Galaxy S2 series models
Form factor: removable smartphone battery
How to use
Power the phone off, remove the back cover and the original battery, then insert the BlueStar replacement battery ensuring correct polarity and seating. Replace the back cover and power on the device. Charge the new battery fully before first use following normal charging practices for Li-Ion batteries.
Usage recommendations
Charge with a compatible Samsung-approved or standard USB/charger suitable for Li-Ion smartphone batteries; avoid extreme temperatures and mechanical damage. Dispose of used batteries according to local regulations and recycle where facilities exist.

## FAQ

### 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 blue star 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 blue star 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/226880/4071383_large.webp