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Skylink Classic H15132 Replacement Battery 3.7V 1200mAh

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From $23.99 USD $29.99
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Fits Skylink Classic, Hit, and Simple models; replaces OEM battery H15132.
3.7V at 1200mAh delivers 4.44Wh — sufficient for calling, messaging, and standard app use on this form factor.
Connector type matches original slot with no modification; locking tab seats flush against the phone chassis.
We bench-tested the cell across three charge cycles; BMS voltage regulation held steady at load with no early cutoff.
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 discharge curve before high-current charging.
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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

1200mAh

Skylink Classic / Hit / Simple — 3.7V Li-ion Replacement Battery (H15132)

This is a 3.7V, 1200mAh Li-ion cell replacing OEM part H15132 in Skylink Classic, Hit, and Simple smartphones. It restores power to calling, messaging, and app functions when the original cell has degraded or failed to hold charge. Dimensions are 53.00 × 33.90 × 5.70mm — confirm these against your existing cell before fitting.

  • Classic, Hit, and Simple compatibility: These three Skylink models share the same battery bay dimensions, connector pinout, and BMS handshake protocol — one cell fits all three without modification.
  • Bench tested on actual hardware: We cycled this cell through charge and discharge on the Skylink platform. The BMS accepted charge correctly, protection circuits triggered at expected voltage limits, and the connector seated without play.
  • 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.

Why the Skylink Classic reports wrong battery percentage after a cell swap

The fuel gauge IC stores a discharge curve built from the old cell's behaviour. When a new cell goes in, the IC has no reference data for how voltage drops under load across the new cell's capacity range. The percentage readout drifts because the IC is mapping measured voltage against a curve that no longer applies. One full discharge down to auto-shutoff followed by a full uninterrupted charge resets the coulomb counter and re-anchors the gauge to the new cell.

Sudden shutdown at 20–30% on the replacement cell

This happens when the fuel gauge IC hasn't yet recalibrated and the cell voltage drops sharply under modem or screen load — a voltage cliff the old curve didn't predict. The phone's low-voltage protection trips before the displayed percentage reaches zero. It is not a faulty cell. Run one full cycle without interruption and let the gauge track the actual discharge curve. After calibration, the shutoff point should align with a reported level below 5%.

Compatible Models

Classic Hit Simple

Replaces Part Numbers

H15132

Technical Specifications

Voltage3.7V
Amp Hours1200mAh
Capacity1200mAh
Rate4.44Wh
Net Weight31g /1.09 oz
Gross Weight56g /1.98 oz
Approximate Weight56g /1.98 oz
Dimension 53.00 x 33.90 x 5.70mm

Product Highlights

  • Brand: Skylink
  • 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 Skylink Classic shuts off suddenly at around 25% after fitting the new battery — is the cell faulty?

The cell is almost certainly fine. The fuel gauge IC is still using the discharge curve from your old, degraded cell, so it can't predict when the new cell will hit the low-voltage cutoff under modem or screen load. The voltage drops faster than the gauge expects, and the protection circuit trips. Run one full discharge down to auto-shutoff and one uninterrupted full charge — after that cycle the gauge recalibrates and the early shutoffs should stop.

The battery percentage on my Skylink jumps around erratically after the replacement — 60% one minute, 45% the next.

This is the coulomb counter recalibrating after a cell swap. The IC tracks charge by integrating current over time, but it lost its reference baseline when you removed the old cell. Until it completes one full discharge-charge cycle, the percentage readout will be unstable. Let the phone discharge to auto-shutoff without interruption, then charge fully to 100% without unplugging early — one complete cycle anchors the counter to the new cell.

Fast charging stopped working on my Skylink after I put in the new H15132 — the phone only slow-charges now.

On the first cycle after a cell swap, the charge IC can reject the fast-charge protocol while it validates the new cell's impedance profile. This is normal behaviour and not a sign of a defective battery. Charge the phone once at standard speed through a full cycle. On the second charge, plug in using the same fast-charge adapter — the IC should accept the protocol once it has one baseline cycle recorded against the new cell.

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