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Motorola Moto One Vision SB18C43602 Compatible Battery 3.85V 3200mAh

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Fits Motorola Moto One Vision, XT1970, One Action, and XT2013-4 phones, replacing OEM part SB18C43602.
Delivers 3.85V at 3200mAh capacity—enough charge cycles to restore full-day operation on this midrange processor.
Connector snaps into the battery slot with a positive terminal clip lock that seats flush against the phone frame.
We cycled this cell on a loaded Moto One Vision; the fuel gauge IC accepted the new discharge curve without voltage cliff errors.
On first charge after installation, run one complete discharge-recharge cycle without fast charging—this recalibrates the coulomb counter against the new cell's impedance profile.
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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

3.85V

Amp

3200mAh

Motorola Moto One Vision / XT1970 / One Action — 3.85V Li-Polymer Replacement Battery (SB18C43602)

This is a 3.85V, 3200mAh (12.32Wh) lithium-polymer replacement battery for the Motorola Moto One Vision (XT1970), One Action (XT2013-4), and related variants. It replaces OEM part numbers SB18C43602, SB18C43601, and KR40. Dimensions are 71.65 × 61.00 × 4.56mm — verify your original cell size before installing.

  • Moto One Vision and One Action compatibility: Both the XT1970 and XT2013-4 run the same 3.85V battery rail, share the same connector pinout, and use the same BMS handshake with Motorola's charge IC. One cell fits both platforms without modification.
  • Bench tested on actual hardware: We ran this cell on an XT1970 unit and confirmed the BMS accepted the new cell without throwing a charge fault. The charge IC stepped through trickle, CC, and CV phases as expected on the first cycle.
  • Fuel gauge recalibration on first use: On first use after installation, disable fast charging and run one complete discharge-to-charge cycle. This lets the fuel gauge IC map the new cell's discharge curve before high-current fast charging pushes current into an uncalibrated state.

Sudden shutdown at 20–30% on the Moto One Vision after a cell swap

The XT1970's fuel gauge IC retains the discharge curve from the old cell after replacement. When the new cell hits its actual voltage floor, the IC hasn't recalibrated — it still expects the old curve, so the reported percentage doesn't match real cell voltage. Under load from the modem or display, the cell voltage drops below the BMS cutoff threshold before the OS can warn you. Run one full discharge from 100% to automatic shutdown, then charge to 100% uninterrupted — this resets the coulomb counter against the new cell.

USB-PD fast charge not activating on the first cycle after replacement

On the first charge cycle after fitting a new cell, the charge IC may stay in standard 5V charging mode and refuse to negotiate the fast charge protocol. This happens because the BMS needs to complete one full trickle-to-CV cycle to validate the new cell before it unlocks higher current modes. It is not a fault with the battery or the charger. Charge fully once on a standard 5W USB connection — fast charge will activate from the second cycle onward.

Compatible Models

Moto One Vision XT1970 One Action XT2013-4

Replaces Part Numbers

SB18C43602 KR40 SB18C43601

Technical Specifications

Voltage3.85V
Amp Hours3200mAh
Capacity3200mAh
Rate12.32Wh
Net Weight48g /1.69 oz
Gross Weight73g /2.58 oz
Approximate Weight73g /2.58 oz
Dimension 71.65 x 61.00 x 4.56mm

Product Highlights

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

Frequently Asked Questions

My Moto One Vision shuts off at around 25% charge — is the new battery faulty?

This is a fuel gauge IC calibration issue, not a cell fault. The XT1970's coulomb counter is still tracking the old cell's discharge curve, so the percentage shown doesn't reflect actual cell voltage. Under display or modem load, real cell voltage hits the BMS cutoff before the OS shows low battery. Run one full discharge to automatic shutdown and then a full uninterrupted charge to 100% — the fuel gauge resets against the new cell after that cycle.

The phone won't turn on at all after the replacement battery sat in a drawer for a few months before installation — what happened?

A lithium-polymer cell that self-discharges below approximately 2.5V triggers a BMS lockout to prevent cell damage. The BMS will block normal charging until the cell is recovered. Connect the phone to a low-current charger (5W standard, not fast charge) and leave it for 30–45 minutes without pressing the power button — the charge IC runs a trickle pre-charge phase that brings the cell back above the lockout threshold. Once the screen shows a charging indicator, the BMS has re-initialised and normal charging will proceed.

The phone feels noticeably warm near the battery area during the first few charges after fitting the new cell — is that normal?

Yes, within limits. A new high-impedance cell has slightly more internal resistance than a broken-in cell, so the charge IC dissipates more heat during the constant-current phase on the first few cycles. As long as the device is warm but not hot to the touch and does not cut the charge session short, it is within normal range. If the phone is cutting out during charging or getting genuinely hot, check that the replacement cell dimensions match — 71.65 × 61.00 × 4.56mm — as an oversized cell can press against the back cover and trap heat.

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