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HTC Touch Pro Replacement Battery 3.7V 2400mAh Li-ion

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From $28.99 USD $35.99
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Fits HTC Touch Pro, TyTN III, and Raphael models; replaces OEM part numbers DIAM171, 35H00111-08M, and 35H00111-06M.
3.7V and 2400mAh capacity restore full charge capacity to aging cells that have degraded after repeated discharge cycles.
Connector slides straight into the battery slot with a single locking tab at the base; orientation is keyed and cannot reverse.
We bench-tested this cell in a Touch Pro unit; the BMS accepted the pack on first insertion and held voltage stable under processor load.
On first use, run one complete discharge-to-shutdown and full recharge cycle before normal operation — this lets the fuel gauge IC recalibrate against the new cell's discharge curve.
Extended delivery time

Available by SPECIAL ORDER. Delivery for this product typically takes 2 weeks.

Extra Discount: As a thank you for your patience, enjoy an extra 5% off your order
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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

HTC Touch Pro / TyTN III — 3.7V Li-ion Replacement Battery (DIAM171 / 35H00111-08M)

This 3.7V, 2400mAh Li-ion cell replaces the original battery in the HTC Touch Pro, TyTN III, Herman, and Raphael. It fits the same battery bay and uses the same three-contact connector as the factory cell. Voltage and capacity match the OEM spec exactly — 3.7V nominal, 8.88Wh total.

  • Touch Pro / TyTN III platform fit: These models share the same battery bay dimensions, connector pinout, and BMS handshake protocol. One cell covers all of them without modification.
  • Bench tested on actual hardware: We cycled this cell on a Touch Pro unit and monitored the BMS through charge and discharge. The protection circuit held cutoff at the correct thresholds and the charge IC accepted the cell without fault codes.
  • Fuel gauge recalibration on first install: On first use after installation, disable fast charging and run one full discharge-to-charge cycle. The fuel gauge IC on the Touch Pro calibrates its coulomb counter against the cell's discharge curve — skipping this step causes erratic percentage readings until the IC catches up.

Sudden shutdown at 20–30% on the Touch Pro after a cell swap

This happens because the fuel gauge IC still holds the discharge curve of the degraded original cell. When the new cell hits a voltage point that mapped to "empty" on the old curve, the OS triggers a shutdown — even though usable charge remains. The fix is one full uninterrupted discharge down to automatic power-off, followed by a full charge with the screen off. After that cycle, the coulomb counter resets against the new cell's actual voltage-to-capacity curve and the shutdowns stop.

Touch Pro not powering on after the replacement cell sat in storage

Li-ion cells self-discharge in storage. If the voltage drops below 2.5V per cell, the BMS enters lockout mode and blocks charge current to prevent damage to a deeply discharged cell. The Touch Pro will show nothing on screen — no charging indicator, no boot. Connect the phone to a wall charger and leave it for 20–30 minutes without pressing the power button. The charge IC will trickle current into the cell at low voltage until the BMS sees a safe threshold — typically around 3.0V — and releases the lockout, after which normal charging resumes.

Compatible Models

Touch Pro TyTN III Herman Raphael Raphael 100 Raphael 800

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: HTC
  • 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

Why does my Touch Pro show the wrong battery percentage after I put in the new cell?

The fuel gauge IC inside the Touch Pro calibrates to a specific discharge curve — the one it learned from your old, degraded cell. A new 2400mAh cell has a different voltage-to-capacity slope, so the IC reports incorrect percentages until it relearns. Run one full discharge to automatic power-off, then charge uninterrupted to 100% with the screen off. After that single cycle, the coulomb counter realigns to the new cell and the percentage readings stabilise.

The Touch Pro feels warm near the battery compartment while charging the new cell — is that normal?

A new high-impedance cell draws charge current differently than a broken-in cell, and the charge IC on the Touch Pro generates more heat while it adjusts. Mild warmth at the back of the handset during the first two or three charge cycles is expected. If the device becomes hot to the touch or the charger disconnects before reaching 100%, charge with the screen off and the phone on a flat surface away from soft materials. The heat typically reduces to normal levels after the cell's internal impedance settles over the first few cycles.

My Touch Pro charges fine but cuts out suddenly when I open a heavy app or turn the screen to full brightness — why?

This is a voltage sag issue. Under a sudden high-current draw — backlight, processor spike, or radio transmission — a new cell that hasn't fully formed can drop voltage fast enough to trip the BMS undervoltage cutoff, even at 25–30% reported charge. The BMS interprets the voltage dip as empty and shuts down the system to protect the cell. Charge the phone to 100%, then run two or three full discharge cycles without interruption. Once the cell's internal resistance stabilises, the voltage sag under load flattens and the unexpected shutdowns stop.

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