Samsung Galaxy S3 EB-L1G6LLUC Replacement Battery 3.8V 2100mAh
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Samsung Galaxy S3 EB-L1G6LLUC Replacement Battery 3.8V 2100mAh - is backordered and will ship as soon as it is back in stock.
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Battery Care Tips
Battery Care Tips
🔹 Getting Started
Charge your new battery fully before you use it for the first time. Over the next few charge cycles, run your device down to around 20% before you recharge—this helps the battery perform its best. After that, charge whenever you need to.
🔹 Keep It Healthy
Avoid letting your battery completely drain or staying plugged in constantly. Both extremes wear it out faster. Store the battery in a cool, dry place when you're not using it, since heat damages batteries quickly.
Delivery and Shipping
Delivery and Shipping
🔹 Most orders ship the next day, and we use FedEx, UPS, Purolator and other carriers to get them to you. Lithium batteries have to ship by ground only, not air or USPS. Make sure your address is right before you order, because if we have to send it back, you pay for shipping again.
Disclaimer
Disclaimer
⚠️ Disclaimer: All product names, trademarks, and registered trademarks belong to their respective owners.
🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.
Samsung Galaxy S3 EB-L1G6LLUC Replacement Battery 3.8V 2100mAh - is backordered and will ship as soon as it is back in stock.
Voltage
3.8V
Amp
2100mAh
Sprint Galaxy S3 — 3.8V Li-ion Replacement Battery (EB-L1G6LLUC)
This is a 3.8V, 2100mAh Li-ion cell that fits the Samsung Galaxy S3 and Sprint SPH-L710. It replaces OEM part numbers EB-L1G6LLUC, EB-L1G6LVA, EB-L1G6LLK, EB-L1G6LLA, and EB585158LP. It powers the S3's processor, display, radios, and all background services.
- SPH-L710 and Galaxy S3 compatibility: The SPH-L710 is Sprint's Galaxy S3 variant. It uses the same battery bay dimensions (63.00 × 50.40 × 5.40mm), the same 3.8V nominal voltage rail, and the same connector pinout as the international GT-I9300. All listed OEM part numbers cross-reference to this same physical cell.
- Bench tested on actual hardware: We seated this cell in an SPH-L710 and cycled it through a full discharge and recharge. The BMS accepted charge current without error, the protection circuit tripped correctly at low-voltage threshold, and the device booted cleanly at each stage of the test.
- Fuel gauge recalibration on first use: After installing this cell, disable fast charging and run one complete discharge-charge cycle at standard current. The S3's fuel gauge IC was calibrated to your old cell's discharge curve. One full cycle at low current lets it remap to the new cell before high-current charging begins.
Sudden shutdown at 20–30% on a replacement Galaxy S3 cell
The Galaxy S3's fuel gauge IC stores a learned discharge curve from the original cell. When you swap in a new cell, that stored curve no longer matches the actual voltage-versus-capacity profile of the replacement. Under load — LTE radio, screen at full brightness, or a background sync burst — the cell voltage drops sharply at a point the gauge still reads as 25%. The phone interprets this voltage cliff as a critical low and shuts down. One full discharge cycle from 100% to automatic power-off, followed by a full charge, forces the coulomb counter to resync to the new cell's actual curve.
Phone won't power on after the replacement cell sat in storage
Li-ion cells self-discharge during storage. If this cell sat unused long enough to drop below approximately 2.5V per cell, the BMS enters lockout to prevent damage — the phone will show nothing when you press power. Connect the phone to a wall charger, not a USB port, and leave it for 15–20 minutes without pressing anything. The charge IC delivers a trickle current to bring the cell voltage above the BMS re-enable threshold, typically around 2.9V, after which normal charging resumes and the phone will boot.
Compatible Models
Replaces Part Numbers
Technical Specifications
Product Highlights
- Brand: Sprint
- Manufacturer: CS
- Series: Standard
- Color: Black
- Product Type: Li-ion
- Battery Type: Li-ion
- Warranty: 12 Months
- Bulk Orders: sales@batteryweb.com
Frequently Asked Questions
My Galaxy S3 shuts off at around 25% after I put in the new battery — why does it keep doing this?
The S3's fuel gauge IC is still reading from the discharge curve it learned on your old, degraded cell. The new cell has a steeper voltage drop under radio and screen load at that state of charge, so the phone hits its shutdown voltage while the gauge still shows 25%. Run one full discharge from 100% down to automatic power-off, then charge to 100% without interruption. That single cycle resets the coulomb counter to the new cell's actual curve.
The battery percentage on my S3 is jumping around erratically — it just went from 60% to 41% with no explanation.
This is the fuel gauge IC recalibrating after a cell swap. The internal coulomb counter accumulated error against the old cell's impedance profile, and the new cell has different characteristics at each state of charge. The percentage will stabilise after one or two full discharge-charge cycles at standard (non-fast) charge current. Avoid topping up in short bursts during those first two cycles — partial charges slow the recalibration process.
Fast charging stopped working the day after I installed the replacement — the phone is only trickle charging now.
On the first cycle after a cell swap, some charge controllers default to a lower current rate until the BMS confirms cell health over a full charge. This is normal behaviour, not a fault. Let the phone charge fully from below 20% to 100% in one uninterrupted session. After that complete cycle, fast charging should resume at full current — if it does not, check that the charger output is at least 5V/2A, as the S3's charge IC will not step up to higher current from a low-output USB port.
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