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Verizon DIAM171 Replacement Battery 3.7V 2400mAh

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From $28.99 USD $35.99
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Fits Verizon DIAM171 smartphones — direct OEM replacement for models using this 3.7V cell.
3.7V, 2400mAh capacity sustains talk, messaging, and app use on a single charge cycle.
Connector seats flush into the battery slot with no locking tab — standard phone contact orientation.
We charged through a full cycle on bench; the BMS accepted input without cutoff or thermal event.
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.
Delivery time

This product ships directly from our Manufacturer's Warehouse and is usually delivered within 7 – 10 business days to your doorstep.

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Fresh Battery, Worth the Wait

To provide the highest-quality replacement battery, we ship this battery directly from the manufacturer rather than from aging warehouse inventory. This means delivery may take a little longer, but it helps ensure you receive a fresh battery with better performance, a longer lifespan, and greater reliability.

Estimated delivery: 7–10 business days
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By continuing with your purchase, you acknowledge and agree to the estimated 7–10 business day delivery timeframe.
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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

2400mAh

Verizon DIAM171 — 3.7V Li-ion Replacement Battery (DIAM171)

This 3.7V Li-ion cell delivers 2400mAh (8.88Wh) for Verizon smartphones using the DIAM171 battery specification. It fits devices originally drawing on OEM part numbers DIAM171, 35H00111-08M, and 35H00111-06M. Dimensions are 41.96 × 40.82 × 15.75mm — confirm these against your existing cell before installing.

  • Multi-part-number compatibility: Three OEM part numbers — DIAM171, 35H00111-08M, and 35H00111-06M — share the same voltage rail, connector pinout, and BMS handshake requirements. One replacement cell covers all three variants without hardware modification.
  • Bench tested on actual hardware: We cycled this cell through charge and discharge on the bench. The BMS accepted standard Li-ion charge termination at 4.2V and held cutoff at the low end without tripping into lockout under normal draw.
  • Fuel gauge recalibration on first install: On first use after installation, disable fast charging for one complete discharge-charge cycle. This lets the fuel gauge IC recalibrate its discharge curve against the new cell before high-current charging is applied to an uncalibrated state.

Why the phone reports wrong battery percentage after a cell swap

The fuel gauge IC on this platform uses a coulomb counter and a stored discharge curve calibrated to the original cell. A new cell with a different internal resistance profile makes the IC's model inaccurate from the first boot. The gauge may read 80% while the actual state-of-charge is significantly lower or higher. One full discharge to auto-shutdown followed by a complete uninterrupted charge to 100% forces the IC to rewrite its calibration table against the new cell.

Sudden shutdown at 20–30% on the replacement cell

This is a voltage cliff failure, not a capacity problem. When the modem transmits or the screen peaks in brightness, current draw spikes and the cell's terminal voltage drops sharply. If the BMS sees voltage fall below its cutoff threshold — typically around 3.0V — it disconnects the load instantly, regardless of the percentage the OS displayed. The fuel gauge IC hasn't yet mapped the new cell's sag characteristics. Run one full calibration cycle as described above, then retest under normal load.

Replaces Part Numbers

DIAM171 35H00111-08M 35H00111-06M

Technical Specifications

Voltage3.7V
Amp Hours2400mAh
Capacity2400mAh
Rate8.88Wh
Net Weight58.3g /2.06 oz
Gross Weight108.3g /3.82 oz
Approximate Weight108.3g /3.82 oz
Dimension 41.96 x 40.82 x 15.75mm

Product Highlights

  • Brand: Verizon
  • Manufacturer: CS
  • Series: Extension
  • Color: Black
  • Product Type: Li-ion
  • Battery Type: Li-ion
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Frequently Asked Questions

My phone won't turn on at all after the replacement battery sat in a drawer for a few months — is the cell dead?

Likely not dead, but the BMS has locked out due to deep discharge below 2.5V per cell. Connect the phone to a wall charger — not a PC USB port — and leave it for 20–30 minutes before attempting to power on. The charge IC needs to trickle enough current into the cell to bring it above the BMS re-enable threshold before normal charging can resume. If the phone shows no charge indicator after 45 minutes on a wall charger, check that the battery connector is fully seated.

Fast charging stopped working after I installed this battery — my phone only charges slowly now.

On the first charge cycle with a new cell, the BMS may not immediately negotiate the USB-PD or proprietary fast-charge handshake because the charge IC is profiling an unfamiliar cell impedance. Complete one full slow charge to 100%, then discharge normally to around 10–15% and charge again. Most devices restore fast-charge negotiation on the second or third cycle once the charge IC has mapped the new cell's internal resistance. If fast charging still fails after three cycles, test with a different fast-charge cable and adapter to rule out a connector fault.

The battery percentage jumps around erratically — goes from 45% to 62% without charging, then drops suddenly.

Erratic percentage jumps are a fuel gauge IC recalibration symptom, not a sign of a faulty cell. The coulomb counter is using a discharge model built for the original cell, and the mismatch causes it to misreport state-of-charge as the new cell's voltage curve diverges from stored data. Drain the phone until it auto-shuts down, then charge it in one uninterrupted session to 100% without using the device. After that single full cycle, the gauge IC rewrites its reference curve and percentage reporting stabilises.

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