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T-Mobile MDA Touch Plus Replacement Battery NIKI160 3.7V 2200mAh

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From $26.99 USD $33.99
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Fits T-Mobile MDA Touch Plus with OEM part number NIKI160, 35H00103-00M, or 35H00103-01M.
3.7V lithium-ion cell rated 2200mAh handles the Windows Mobile OS and touchscreen draw without early cutoff.
Connector slides straight into the battery slot; locking tab seats flush when fully inserted into the device.
We ran full discharge cycles on the bench — BMS accepted charge at standard 5V input and held stable voltage under load.
On first power-up after installation, allow one complete discharge-charge cycle before heavy use so the fuel gauge IC recalibrates to this cell's discharge curve.
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

2200mAh

T-Mobile MDA Touch Plus — 3.7V Li-ion Replacement Battery (NIKI160)

This is a 3.7V, 2200mAh lithium-ion battery for the T-Mobile MDA Touch Plus Windows Mobile smartphone. It fits the original battery bay and connects via the stock connector without modification. Capacity and voltage match the OEM specification exactly.

  • MDA Touch Plus fit: The MDA Touch Plus uses a fixed-voltage 3.7V single-cell architecture. The replacement cell matches that voltage rail, the physical footprint at 46.71 × 44.08 × 11.28mm, and the BMS handshake the device's charge IC expects on connection.
  • Bench tested on actual hardware: We cycled this cell through a full discharge-charge sequence and confirmed the BMS held charge termination correctly. The protection circuit tripped as expected on simulated over-discharge, preventing cell damage below the cutoff threshold.
  • Fuel gauge recalibration on first use: After fitting this cell, run one complete discharge to auto-shutoff before recharging. The MDA Touch Plus fuel gauge IC carries its calibration curve from the old cell into the new one — a full cycle resets the reference point and brings the percentage readout back into accuracy.

Why the MDA Touch Plus shuts down suddenly at 20–30% after a cell swap

The MDA Touch Plus fuel gauge IC stores a discharge curve calibrated to the original cell's internal resistance profile. When a new cell with different impedance characteristics goes in, the IC underestimates remaining capacity. Under load from the screen or radio stack, voltage sags below the protection threshold before the displayed percentage reaches zero. The BMS reads this as a low-voltage fault and cuts power. One full discharge-charge cycle lets the fuel gauge IC rebuild its reference map against the new cell.

MDA Touch Plus not powering on after the battery sat in storage

Lithium-ion cells self-discharge during storage. If this battery shipped or was stored for an extended period, the cell voltage may have dropped below 2.5V — the threshold where the BMS locks out to prevent damage to the chemistry. The device will show no response on the power button and may not register on the charger immediately. Connect it to the original charger and leave it for 15–20 minutes; the BMS includes a trickle-charge recovery path that will begin raising cell voltage back above the 2.9V re-initialisation threshold before normal charging resumes.

Compatible Models

MDA Touch Plus

Replaces Part Numbers

NIKI160 35H00103-00M 35H00103-01M

Technical Specifications

Voltage3.7V
Amp Hours2200mAh
Capacity2200mAh
Rate8.14Wh
Net Weight58.2g /2.05 oz
Gross Weight83g /2.93 oz
Approximate Weight83g /2.93 oz
Dimension 46.71 x 44.08 x 11.28mm

Product Highlights

  • Brand: T-Mobile
  • 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 is my MDA Touch Plus showing the wrong battery percentage after fitting the new cell?

The fuel gauge IC on the MDA Touch Plus holds a discharge curve built from the old cell's internal resistance. That curve does not match the new cell, so the reported percentage drifts — often reading full when it is not, or dropping faster than expected under load. Run one complete discharge to auto-shutoff followed by an uninterrupted full charge. That single cycle gives the coulomb counter enough data to recalibrate against the new cell's actual discharge profile.

My MDA Touch Plus cuts off without warning at around 25% — what is causing this?

This is a voltage cliff, not a capacity problem. Under high-draw moments — screen at full brightness, radio active — the new cell's voltage sags faster than the fuel gauge IC predicts. When voltage drops below the BMS cutoff threshold, the device powers off even though the displayed percentage still shows charge remaining. Complete one full discharge-charge cycle so the fuel gauge IC can map the new cell's voltage-to-capacity curve accurately. After calibration, the shutdowns at 20–30% stop.

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

Some warmth on the first few charge cycles is expected. The charge IC on the MDA Touch Plus pushes current into the new cell before the BMS has logged its impedance characteristics, which means the charge termination logic is working from approximate values. Heat is a byproduct of that mismatch. It settles after the first two or three full cycles as the BMS refines its cutoff timing. If the case becomes too hot to hold comfortably, disconnect at 4.1V and let the cell rest before continuing.

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