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🔋 Power up your Galaxy S21 like a pro — don’t get left behind!
This MAXSHARKS 0-cycle Li-ion replacement battery is designed exclusively for the Galaxy S21 5G SM-G991 series, delivering fresh, reliable power. The kit includes all necessary professional tools, pre-cut adhesives, and a comprehensive repair guide, empowering you to perform a confident, hassle-free battery swap. With a 2-year warranty, it’s the smart choice to restore your phone’s endurance and keep you connected.
| ASIN | B0DK5V98GX |
| Antenna Location | Phone |
| Battery Cell Type | Lithium Ion |
| Battery Weight | 25 Grams |
| Best Sellers Rank | #24,501 in Cell Phones & Accessories ( See Top 100 in Cell Phones & Accessories ) #66 in Cell Phone Replacement Batteries |
| Brand | MAXSHARKS |
| Built-In Media | CellPhone Battery Relacement Kit |
| Compatible Phone Models | Galaxy S21 |
| Customer Reviews | 3.4 3.4 out of 5 stars (11) |
| Manufacturer | MAXSHARKS |
| Model Name | EB-BG965ABA |
| Model Number | EB-BG965ABA |
| Number of Batteries | 1 Lithium Polymer batteries required. (included) |
| Reusability | Rechargeable |
| Unit Count | 1.0 Count |
| Warranty Description | 2 Year Manufacturer |
J**E
It will not last long
It last only 4 months ,bad investment
T**N
Gasket is bad -- you'll need to buy another one
Gasket won't seal. I cleaned both sides, installed, heated, and clamped. Not sure how the battery is yet, but if you buy this plan on buying another gasket for it.
S**N
Battery replacement
No instructions for reassembley.
M**N
Good enough to trade in the phone, but some issues.
The old battery on my S21 swelled up so I needed a new replacement as I was planning to trade it in. Install was fairly straight forward, taking out the old battery took a surprising amount of forces and time. Once installed the battery worked right away, but I did get an error triangle and the phone would not fast charge and would take 6 hours to fully charge. Only about 3.5 hours with warless charging. I am not sure though if is the battery or if my phone was damaged from the old battery swelling. The battery lists the capacity as 3880, exactly the same as the stock, but the stock reports 4000 in the phone and this one reports 3880. The tested capacity came out as 3760 mah or 97% so the battery is clearly new. Other than the slow charging, the battery works great and I was able to trade in the phone for an upgrade without issue.
Trustpilot
2 weeks ago
1 month ago