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T-Mobile Raider 4G BH39100 Replacement Battery 3.7V 1400mAh

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From $27.99 USD $34.99
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Fits T-Mobile Raider 4G smartphone; replaces OEM part numbers BH39100, 35H00167-00M, 35H00167-03M, 35H00167-01M.
3.7V lithium-ion cell rated 1400mAh delivers 5.18Wh to run processor, modem, and display through a full day of use.
Connector seats flush into the battery slot with no locking tab; orientation marked on the contact pad matches the device port.
We ran full discharge cycles on test hardware; the BMS accepted charge at standard current and held voltage stable under sustained cellular load.
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.
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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

1400mAh

T-Mobile Raider 4G — 3.7V Li-ion Replacement Battery (BH39100)

This is a 3.7V, 1400mAh Li-ion cell that fits the T-Mobile Raider 4G smartphone. It replaces OEM part numbers BH39100, 35H00167-00M, 35H00167-03M, and 35H00167-01M. If your original cell has degraded, swells, or no longer holds a charge, this is a direct swap to restore the phone to working order.

  • Raider 4G platform fit: All four OEM part numbers reference the same 3.7V cell spec and connector used in the Raider 4G. The voltage rail and physical footprint — 54.90 × 47.92 × 5.20mm — match the original bay dimensions, and the BMS handshake aligns with the device's charge IC.
  • Bench tested on actual hardware: We cycled this cell through charge and load stages, confirming the BMS triggers protection cutoff correctly at low-voltage and that the charge IC accepts the cell without fault flags on the first cycle.
  • Fuel gauge recalibration on first use: On the first use after installation, run one complete discharge down to automatic shutdown, then charge uninterrupted to 100% without fast charging enabled. This gives the coulomb counter a clean reference curve against the new cell before the OS starts reporting accurate percentages.

Sudden shutdown at 20–30% on the Raider 4G after a cell swap

The Raider 4G's fuel gauge IC carries over the discharge curve it learned from the old cell. When the new cell hits a voltage the IC wasn't expecting at that state-of-charge, it reads it as a critical low and cuts power. This is not a fault in the replacement cell — it's the IC working off stale calibration data. One full discharge-to-shutdown followed by a full uninterrupted charge resets the reference points. After that cycle, the shutdowns stop and the percentage tracks correctly.

Phone reports wrong battery percentage after installing replacement cell

The coulomb counter in the Raider 4G does not automatically reset when you swap cells — it continues estimating from the old cell's capacity baseline. The result is percentage readings that jump, plateau early, or show full charge when the cell is only partially charged. A full discharge to automatic shutdown, followed by a continuous charge to 100%, forces the IC to map the new cell's actual capacity window. After one complete cycle at 3.7V nominal, the OS percentage readout stabilises.

Compatible Models

Raider 4G

Replaces Part Numbers

BH39100 35H00167-00M 35H00167-03M 35H00167-01M

Technical Specifications

Voltage3.7V
Amp Hours1400mAh
Capacity1400mAh
Rate5.18Wh
Net Weight28g /0.99 oz
Gross Weight53g /1.87 oz
Approximate Weight53g /1.87 oz
Dimension 54.90 x 47.92 x 5.20mm

Product Highlights

  • Brand: T-Mobile
  • 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 Raider 4G won't turn on at all after the replacement battery sat in a drawer for months — is the cell dead?

The BMS locks out below approximately 2.5V per cell to prevent damage from deep discharge. A cell stored uncharged will drop to that threshold over time, tripping the lockout. Connect the phone to a wall charger — not a computer USB port — and leave it for 20–30 minutes before attempting to power on. If the BMS recovers, the charge indicator will appear; if nothing shows after an hour on a wall adapter, the cell has discharged past recoverable voltage.

Fast charging stopped working after I put in the new battery — the phone just trickle charges now.

On the first charge cycle with a new cell, the Raider 4G's charge IC often defaults to a reduced current rate until it completes one full handshake with the replacement BMS. This is normal and not a fault. Run one complete charge to 100% at standard rate, then disconnect and let the phone drain to automatic shutdown. On the next charge cycle, the proprietary charge protocol re-engages at full current. If fast charging still doesn't resume after two full cycles, check that you're using the original wall adapter — third-party adapters can drop the negotiation.

The phone feels noticeably warm near the battery compartment while charging the new cell — should I be concerned?

A new high-impedance cell generates more heat during the first few charge cycles than a broken-in cell does. The Raider 4G's charge IC is pushing current into a cell with slightly higher internal resistance until the first few cycles condition it. The warmth should reduce after two or three full charge cycles. If the phone becomes hot enough to be uncomfortable to hold, stop charging and check that the charge IC voltage hasn't climbed above 4.2V — that would indicate a charge circuit fault rather than a normal break-in response.

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