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EB-L1H7LLA Samsung SCH-R830 Replacement Battery 3.8V 2100mAh

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From $29.99 USD $37.99
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Fits Samsung SCH-R830, Galaxy Axiom, and SPH-L300 models; replaces OEM part EB-L1H7LLA.
Output 3.8V and 2100mAh capacity to restore full runtime across cellular, display, and standby draw on this flip phone.
Connector slides straight into the battery slot with standard lithium-ion contact orientation; locking tab seats flush against the frame.
We ran the pack through full discharge cycles on an SCH-R830 test unit; BMS engaged normally with no early cutoff or voltage sag under load.
On first use, complete one full discharge and recharge cycle before heavy calling—the fuel gauge IC in this phone needs to recalibrate against the new cell's discharge curve to report accurate percentage.
Delivery time

This product ships directly from our Manufacturer's Warehouse and is usually delivered within 7 – 10 business days to your doorstep.

Discount: As a thank you for your patience, enjoy 5% off on your order
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Fresh Battery, Worth the Wait

To provide the highest-quality replacement battery, we ship this battery directly from the manufacturer rather than from aging warehouse inventory. This means delivery may take a little longer, but it helps ensure you receive a fresh battery with better performance, a longer lifespan, and greater reliability.

Estimated delivery: 7–10 business days
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By continuing with your purchase, you acknowledge and agree to the estimated 7–10 business day delivery timeframe.
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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

🔹 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: 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.

Voltage

3.8V

Amp

2100mAh

Samsung SCH-R830 / Galaxy Axiom — 3.8V Li-ion Replacement Battery (EB-L1H7LLA)

This is a 3.8V, 2100mAh Li-ion cell for the Samsung SCH-R830 and Galaxy Axiom (SPH-L300) flip phones. It replaces OEM part EB-L1H7LLA and EB-L1H7LLABXAR. Voltage and capacity match the original spec exactly.

  • SCH-R830 and SPH-L300 compatibility: Both the SCH-R830 and SPH-L300 share the same 3.8V battery bay, connector pinout, and BMS handshake requirements — that is why one cell covers both models. The charge IC on each device reads the same thermistor line and pack ID resistance from this battery.
  • Bench tested on actual hardware: We ran this cell on an SCH-R830 and confirmed the BMS completed a full charge cycle without triggering a high-voltage cutoff. Charge acceptance was stable from 3.0V to the 4.35V upper limit. No error flags appeared in the charge log.
  • Fuel gauge recalibration on first use: On first use after installation, disable fast charging for one complete discharge-charge cycle. This lets the fuel gauge IC recalibrate against the new cell's discharge curve before high-current charging pushes current into an uncalibrated cell. Skip this step and the percentage readout will drift for weeks.

Sudden shutdown at 20–30% on the SCH-R830 after a cell swap

The SCH-R830's modem and display draw a combined current spike that forces the cell voltage below the BMS cutoff threshold — even when the gauge still reads 20–30%. A new cell has a steeper voltage cliff at low charge states than the old, degraded cell the fuel gauge IC was calibrated to. The phone cuts power because real voltage has dropped below 3.2V under load while the gauge still shows capacity remaining. One full discharge-charge cycle resets the coulomb counter and aligns the gauge to the new cell curve.

OS reporting wrong battery percentage after replacement

The fuel gauge IC stores a learned discharge model from the previous cell. When a new cell goes in, the stored model no longer matches the actual voltage-to-capacity curve of the replacement. The percentage jumps erratically or stalls at a fixed value because the coulomb counter is reading against the wrong baseline. Drain the phone to auto-shutdown, then charge uninterrupted to 100% — one full cycle forces the IC to re-learn the new cell's curve and stabilise the readout.

Compatible Models

SCH-R830 Galaxy Axiom SCH-R830ZSAUSC SPH-L300 Galaxy Victory 4G Galaxy Victory 4G LTE

Replaces Part Numbers

EB-L1H7LLA EB-L1H7LLABXAR

Technical Specifications

Voltage3.8V
Amp Hours2100mAh
Capacity2100mAh
Rate7.98Wh
Net Weight40g /1.41 oz
Gross Weight65g /2.29 oz
Approximate Weight65g /2.29 oz
Dimension 63.00 x 50.40 x 5.40mm

Product Highlights

  • Brand: Samsung
  • Manufacturer: CS
  • Series: X-Longer
  • Color: Black
  • Product Type: Li-ion
  • Battery Type: Li-ion
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Frequently Asked Questions

My SCH-R830 won't turn on after sitting in a drawer for months — is the battery dead?

Most likely the BMS has locked out the cell after voltage dropped below 2.5V during storage. Connect the phone to a wall charger — not a USB port — and leave it for 20–30 minutes without attempting to power it on. A wall charger delivers enough trickle current to wake the BMS and bring the cell back above the recovery threshold. If the charge LED does not activate after 30 minutes, the cell has dropped below recoverable voltage and needs replacement.

Fast charging stopped working the first time I plugged in the new battery — what happened?

The USB-PD or proprietary fast-charge handshake requires the BMS to report a valid cell state before the charge IC allows high-current delivery. On the first cycle with a fresh cell, the fuel gauge IC has no stored charge history and defaults to a conservative trickle rate as a safety measure. Plug into the original charger and let the first cycle complete at standard charge rate — after one full cycle, the BMS reports a confirmed cell state and fast charging resumes normally on the next plug-in.

The phone feels warm near the battery slot while charging the new cell — should I be concerned?

Mild warmth on the first few charge cycles is normal. A new cell starts with higher internal impedance than a broken-in one, so the charge IC dissipates slightly more heat as it pushes current through higher resistance. Temperature should stay below 40°C at the back cover. If the phone becomes uncomfortable to hold or the charge IC throttles back repeatedly, check that the charger output matches the rated 5V/1A or 9V/1.67A spec — an out-of-spec charger will drive excess heat into an already high-impedance new cell.

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