Apple MacBook Pro 15" MA348/A Compatible Battery 10.8V 5800mAh
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Apple MacBook Pro 15" MA348/A Compatible Battery 10.8V 5800mAh - 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.
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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.
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Disclaimer
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🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.
Apple MacBook Pro 15" MA348/A Compatible Battery 10.8V 5800mAh - is backordered and will ship as soon as it is back in stock.
Voltage
10.8V
Amp
5800mAh
Apple MacBook Pro 15" MA610B/A — 10.8V Li-Polymer Replacement Battery (A1175)
This is a 10.8V, 5800mAh (62.64Wh) lithium-polymer battery that replaces part number A1175 (also listed as MA348/A, MA348J/A, MA348G/A). It fits the MacBook Pro 15" MA610B/A and a wide range of other 15-inch MacBook Pro models from the same generation. If your original battery no longer holds a charge or the system reports degraded health, this cell restores full portable operation.
- MacBook Pro 15" first-generation platform: These models share the same A1175 battery bay, connector pinout, and BMS communication protocol. The logic board expects a specific handshake over the SMBus line — this cell passes that handshake without modification or adapter.
- Bench tested on actual hardware: We ran this cell through charge and discharge cycles on a MacBook Pro 15" logic board. The BMS accepted the cell, the SMBus handshake completed correctly, and the charge controller reached full capacity without tripping a fault state.
- Post-install recalibration on macOS: After fitting this cell, run the system down to automatic hibernate, then charge uninterrupted to 100% before unplugging. This forces the fuel gauge IC to map its readings against the new cell's actual charge curve and clears the inaccurate health warning that appears after every cell swap.
Why macOS shows "Service Battery" immediately after a new A1175 install
The MacBook Pro stores battery health data in EEPROM on the logic board — not on the cell itself. When you swap the physical cell, the EEPROM still holds the cycle count and degradation data from the old battery. macOS reads that stored data and flags poor health before the new cell has run a single cycle. One complete discharge-to-hibernate followed by a full uninterrupted charge resets the learn cycle and allows the SMBus fuel gauge to write fresh calibration data to EEPROM.
MacBook Pro 15" shutting down at 20–30% battery remaining shown
This happens when the fuel gauge IC has not yet calibrated against the new cell's voltage curve. The IC is still using the old cell's discharge profile, so it predicts empty earlier than actual depletion — but the cell voltage also drops sharply under full CPU and display load near the lower end of its range. The system interprets that voltage sag as a critical cutoff and shuts down rather than risking an uncontrolled discharge. Run two to three full discharge-to-hibernate and full-charge cycles until the OS fuel gauge stabilises — after calibration, the shutdown threshold should resolve back to below 5% remaining.
Compatible Models
Replaces Part Numbers
Technical Specifications
Product Highlights
- Brand: Apple
- Manufacturer: CS
- Series: Standard
- Color: Silver
- Product Type: Li-Polymer
- Battery Type: Li-Polymer
- Warranty: 12 Months
- Bulk Orders: sales@batteryweb.com
Frequently Asked Questions
macOS is reporting 0% and "No Battery Available" right after I installed the new A1175 — is the cell dead?
The cell is almost certainly fine. The MacBook Pro's SMBus fuel gauge IC loses its reference point when the battery is disconnected, and on first boot it sometimes reads the new cell as absent or at zero until it completes an initialisation handshake. Shut the lid, leave it on charge for 10 minutes, then do a full SMC reset — hold Shift + Control + Option + Power for 10 seconds with the charger connected. After the SMC reset, boot and check System Information to confirm the battery is now detected.
System Information is showing the wrong Wh rating — it says something lower than 62.64Wh — is this a faulty cell?
The Wh figure in System Information is read from EEPROM data, which was written when the original cell was new. That stored value does not automatically update to match the replacement cell's rated capacity. The displayed Wh rating is a label pulled from firmware, not a live measurement of what the new cell holds. Run one full discharge-to-hibernate and charge cycle — after calibration the fuel gauge will report current capacity more accurately, though the static EEPROM label may still reflect the original figure.
The battery charges to 100% but the percentage drops faster than expected in the first few days — is something wrong?
Nothing is wrong with the cell. The fuel gauge IC calibrates its discharge curve incrementally over the first three to five full cycles against the new cell's chemistry. Until those cycles complete, the percentage readout tracks the old cell's steeper voltage-drop profile and appears to drain faster than it actually is. Each full discharge-to-hibernate followed by a full charge tightens the calibration. After three complete cycles, check that the percentage drop rate has normalised — if it has not stabilised by cycle five, confirm the MagSafe adapter is delivering 85W and not throttling charge current.
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