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Alcatel OT-880 CAB3122001C1 Compatible Battery 3.7V 800mAh

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From $22.99 USD $28.99
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Fits Alcatel OT-880, OT-880A, One Touch XTRA and replaces CAB3122001C1, CAB3120000C1, CAB20K0000C1, TB-04BA, BY42, BTR510AB, CAB3120000C3.
3.7V, 800mAh lithium-ion cell delivers the voltage and capacity this early-2010s smartphone needs to restore full talk time.
Connector slides straight into the battery slot with a single locking tab at the base — orientation marked on the phone housing.
We bench-tested this cell in an OT-880 and confirmed the BMS charges cleanly; the fuel gauge IC will recalibrate over one full cycle.
On first charge after installation, allow a complete discharge and recharge cycle without interruption — this resets the phone's coulomb counter to the new cell's actual discharge curve.
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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

3.7V

Amp

800mAh

Alcatel OT-880 / One Touch XTRA — 3.7V Li-ion Replacement Battery (CAB3122001C1)

This 3.7V, 800mAh Li-ion cell replaces the original battery in the Alcatel OT-880, OT-880A, One Touch XTRA, OT-710D, and over 70 additional Alcatel handsets sharing the same battery bay and connector. It cross-references OEM part numbers CAB3122001C1, CAB3120000C1, CAB20K0000C1, TB-04BA, BY42, BTR510AB, and CAB3120000C3. Capacity is 800mAh — match that figure against your original label before ordering.

  • Multi-model fit — OT-880 series and One Touch XTRA: These handsets share a common 3.7V battery bay, connector tab spacing, and contact polarity. The BMS handshake is identical across the group, so one cell covers the full range without electrical modification.
  • Bench tested on actual hardware: We cycled this cell through charge and load on an OT-880 chassis. The BMS accepted charge current at the correct rate, protection circuits tripped at the expected low-voltage threshold, and contact resistance across the gold pads stayed within spec throughout.
  • Fuel gauge recalibration on first use: After fitting this cell, run one complete discharge down to automatic shutdown, then charge uninterrupted to 100% before resuming normal use. The OT-880's fuel gauge IC was calibrated to your old cell's discharge curve — this single full cycle resets it against the new cell so percentage readings stay accurate.

Why the OT-880 reports wrong battery percentage after a cell swap

The OT-880 uses a fuel gauge IC that tracks charge state by modelling the cell's discharge curve over time. When the original cell ages, that curve drifts — and the IC recalibrates slowly to match it. A new 800mAh cell presents a different internal impedance profile, so the IC's stored model no longer fits the cell it's reading. The result is percentage jumps, early shutdowns, or a battery that reads 40% and then drops to zero. One full discharge-to-shutdown followed by an uninterrupted charge to 100% forces the IC to rebuild its model against the replacement cell.

Sudden shutdown at 20–30% on the replacement cell

This happens when the fuel gauge IC still holds the old cell's discharge curve and overestimates remaining capacity. The new cell hits a voltage cliff — typically around 3.4V under modem or display load — before the gauge has counted it down to zero. The phone shuts down not because the cell is defective but because actual terminal voltage dropped below the protection threshold faster than the IC predicted. Run one full discharge cycle to let the IC observe where the real voltage cliff sits on this cell, then recharge fully to 3.7V nominal before returning to regular use.

Compatible Models

OT-880 OT-880A One Touch XTRA OT-710D OT-807 OT-710 One Touch 880 One Touch 880A One Touch 710D One Touch 807 One Touch 710 OT-710A OT-806 One Touch 710A One Touch 806 One Touch C60 OT-810 One Touch 810 OT-602 One Touch 602 Miss Sixty One Touch 710 Chrome One Touch 710 Sweet One Touch 807 Chrome One Touch 807 Sweet OT-807A One Touch 807A One Touch 810D OT-810D OT-870 One Touch 870 OT-888 One Touch 888 OT-888D One Touch 888D OT-905 One Touch 905 One Touch 905 Chrome OT-907 One Touch 907 OT-907D One Touch 907D OT-907N One Touch 907N OT-510 O-T510A One Touch 510 One Touch 510A OT-C60 OT-2005 OT-2005D One Touch 2005 One Touch 2005D OT-768 One Touch 768 OT-875 OT-875T One Touch 875 One Touch 875T A392 A392G OT-A392 OT-A392G OT510A OT-510A OT-871 OT-871A OT871AG One Touch 871 OT-602D OT-815D OT-2005X OT-385D OT-2040D OT-536 OneTouch 2004C OT-2004C

Replaces Part Numbers

CAB3122001C1 CAB3120000C1 CAB20K0000C1 TB-04BA BY42 BTR510AB CAB3120000C3

Technical Specifications

Voltage3.7V
Amp Hours800mAh
Capacity800mAh
Rate2.96Wh
Net Weight17g /0.60 oz
Gross Weight42g /1.48 oz
Approximate Weight42g /1.48 oz
Dimension 49.34 x 40.00 x 4.45mm

Product Highlights

  • Brand: Alcatel
  • 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 OT-880 isn't turning on at all after the replacement battery sat in a drawer for months — is the cell dead?

Likely not dead — just locked out. If a Li-ion cell drops below roughly 2.5V during storage, the BMS trips an undervoltage lockout to prevent further discharge damage. Connect the phone to a wall charger and leave it for 20–30 minutes without pressing the power button; the charge IC needs to push a small trickle current into the cell before the BMS will release the lockout and allow normal charging to resume. If the charging indicator doesn't appear after 45 minutes, check that the gold contact pads on the battery and chassis are clean and making full contact.

The battery percentage jumps around erratically — it was at 60%, then jumped to 85%, then dropped to 30% in minutes.

This is the fuel gauge IC recalibrating against an unfamiliar discharge curve. The OT-880's gauge built its internal model around the worn cell it lived with — your new 800mAh cell has a different impedance profile, so the IC is guessing. Run the phone down to automatic shutdown once, then charge it in one uninterrupted session to 100%. That single full cycle gives the coulomb counter enough data to anchor the percentage readings to the actual cell, and the jumping should stop.

The phone feels warm near the battery during the first few charges — is something wrong with the new cell?

Mild warmth on the first one or two charges is normal with a new high-impedance cell. A fresh Li-ion cell has slightly higher internal resistance than a cell that's been cycled, so the charge IC dissipates a little more energy as heat while it pushes current in. If the phone is uncomfortable to hold or the warmth persists beyond the second full charge, check that the battery sits flat in the bay with no gap at the contacts — a poorly seated cell forces the charge IC to work harder to maintain current flow. The warmth should reduce noticeably after two complete charge cycles.

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