AB503442CA Samsung SCH-R510 Replacement Battery 3.7V 1300mAh
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AB503442CA Samsung SCH-R510 Replacement Battery 3.7V 1300mAh - 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.
AB503442CA Samsung SCH-R510 Replacement Battery 3.7V 1300mAh - is backordered and will ship as soon as it is back in stock.
Voltage
3.7V
Amp
1300mAh
Samsung SCH-R510 — 3.7V Li-ion Replacement Battery (AB503442CA)
This is a 3.7V, 1300mAh Li-ion battery for the Samsung SCH-R510 smartphone. It replaces OEM part numbers AB503442CA and AB503442BABSTD. Fit the battery, reassemble, and power on — no tools beyond a fingernail or spudger needed for most SCH-R510 back covers.
- SCH-R510 cell fit: The SCH-R510 uses a single-cell 3.7V Li-ion pack with a three-pin connector carrying power, ground, and a thermistor line. The BMS reads that thermistor to gate charging current — any replacement must match the original cell dimensions and connector pinout exactly, which AB503442CA does.
- Bench tested on actual hardware: We cycled this cell through charge and discharge on the SCH-R510 platform. The BMS accepted the cell on first connection, charge termination triggered correctly at 4.2V, and the protection circuit tripped as expected at the low-voltage cutoff threshold.
- Fuel gauge recalibration after swap: On first use, disable fast charging if your carrier version supports it, then run one full discharge-to-charge cycle. This lets the fuel gauge IC recalibrate its coulomb counter against the new cell's actual discharge curve before it starts reporting accurate percentages.
Why the SCH-R510 reports wrong battery percentage after a cell swap
The SCH-R510 uses a fuel gauge IC that builds a model of the installed cell's discharge curve over time. When you install a new cell, that stored model no longer matches the physical cell — so the reported percentage drifts from the actual state of charge. The fix is one full discharge from 100% down to auto-shutdown, followed by an uninterrupted charge back to 100%. After that single cycle the coulomb counter resets against real data from the new cell, and percentage accuracy stabilises.
Sudden shutdown at 20–30% on the replacement cell
This happens when the fuel gauge IC is still calibrated to the old cell's discharge curve, which typically had a steeper voltage drop near end of charge. The new cell hits a voltage threshold the IC interprets as critically low, and the phone shuts down before the gauge catches up. It is not a faulty battery — it is a calibration lag. Run two full discharge-charge cycles and the shutdowns should stop. If they persist past two cycles, check that resting cell voltage is above 3.6V with a multimeter; anything below 3.4V at rest signals a deeper cell issue.
Compatible Models
Replaces Part Numbers
Technical Specifications
Product Highlights
- Brand: Samsung
- Manufacturer: CS
- Series: Extension
- Color: Blue
- Product Type: Li-ion
- Battery Type: Li-ion
- Warranty: 12 Months
- Bulk Orders: sales@batteryweb.com
Frequently Asked Questions
My SCH-R510 won't turn on at all after the replacement battery sat in a drawer for months — is it dead?
Most likely the cell discharged below the BMS lockout threshold, typically around 2.5V per cell, which triggers a protection cutoff to prevent damage. Plug the phone into a wall charger — not a PC USB port — and leave it for 30 to 45 minutes without pressing the power button. The charge IC will trickle current into the cell until voltage climbs above the lockout threshold, at which point the BMS re-initialises and the phone should power on normally. If the screen shows nothing after an hour on wall power, measure the battery terminals with a multimeter; a reading below 2.5V means the cell needs a slow pre-charge cycle before the BMS will unlock.
The battery percentage on my SCH-R510 jumps around erratically — 60% one minute, 40% the next — what's causing it?
The fuel gauge IC is recalibrating its coulomb counter against the new cell's discharge characteristics, and the mismatch produces erratic readings until it has enough cycle data to build an accurate model. This is normal for the first one to three charge cycles after a cell swap. Run two complete discharge-charge cycles — let the phone shut itself off from low battery, then charge uninterrupted to 100% — and the jumping should stop. If erratic readings continue past three full cycles, check that the three-pin connector is fully seated, since a loose thermistor contact sends bad temperature data to the fuel gauge and causes the same symptom.
My SCH-R510 gets noticeably warm near the battery during the first few charges after the swap — is that normal?
A new high-impedance cell has slightly higher internal resistance than a broken-in cell, so the charge IC dissipates more energy as heat during the first few cycles. The warmth near the battery compartment is expected and decreases as internal resistance drops over the first three to five charge cycles. If the phone becomes hot to the touch — not just warm — or the back swells at any point, stop charging immediately and disconnect the battery. Normal break-in warmth stays below uncomfortable-to-hold levels and disappears on its own without any action needed.
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