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Vodafone Smart III Compatible Battery 3.7V 1650mAh TLi015A1

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From $23.99 USD $29.99
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Fits Vodafone Smart III, Smart 3, 975N, VF975 smartphones. Replaces OEM battery TLi015A1.
3.7V, 1650mAh Li-ion cell restores full charge cycles to a device that now shuts down prematurely.
Connector slides onto the original battery terminals with no locking tab or adhesive modification needed.
Bench testing showed normal BMS voltage ramp on first insertion; fuel gauge IC required one full cycle.
On first charge after installation, complete one full discharge-charge cycle before returning to typical charging patterns — the coulomb counter recalibrates to this cell's discharge curve during that cycle.
Delivery time

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

Discount: As a thank you for your patience, enjoy 5% off on your order
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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

1650mAh

Vodafone Smart III / VF975 — 3.7V Li-ion Replacement Battery (TLi015A1)

This is a 3.7V Li-ion battery rated at 1650mAh (6.11Wh), replacing OEM part TLi015A1. It fits the Vodafone Smart III, Smart 3, 975N, and VF975 smartphones. Swap it in when the original cell no longer holds enough charge to get through a day of calls, messaging, and app use.

  • Smart III / VF975 platform fit: The 975N, VF975, and Smart 3 all share the same battery bay dimensions and connector pinout as the Smart III. The TLi015A1 part number spans that entire family — one cell, one BMS handshake, same 3.7V nominal rail across every variant.
  • Bench tested on actual hardware: We cycled this cell through charge and discharge on a Smart III unit. The BMS accepted the charge profile without fault flags, held voltage within spec at load, and the protection circuit tripped correctly at the low-voltage cutoff threshold.
  • Fuel gauge recalibration after swap: 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 is applied to an uncalibrated cell.

Sudden shutdown at 20–30% on the Smart III after a cell swap

The Smart III's fuel gauge IC stores a discharge curve from the previous cell. When a new cell goes in, that stored curve no longer matches the actual voltage-to-capacity relationship of the replacement. Under modem load — during a call or mobile data burst — the phone draws current the old curve didn't predict, voltage sags below the cutoff threshold, and the BMS shuts the device down even though the OS still shows charge remaining. One full discharge-charge cycle without fast charging lets the coulomb counter reset against the new cell's real curve and eliminates the premature cutoff.

Phone feels warm near the battery during the first charge after replacement

A fresh Li-ion cell comes from storage with higher internal impedance than a conditioned cell. The charge IC on the Smart III pushes current into that higher-resistance cell, and the additional heat is a normal first-cycle effect. It should not persist beyond the first full charge. If the device stays warm through a second complete charge cycle, check that the back cover is seated flat — any gap that holds the cover away from the cell reduces heat dissipation and can trap warmth longer than expected. Normal operating temperature for the cell is below 45°C at the surface.

Compatible Models

Smart III Smart 3 975N VF975 VF975N VF-975 VF-975N

Replaces Part Numbers

TLi015A1

Technical Specifications

Voltage3.7V
Amp Hours1650mAh
Capacity1650mAh
Rate6.11Wh
Net Weight31.7g /1.12 oz
Gross Weight57g /2.01 oz
Approximate Weight57g /2.01 oz
Dimension 51.83 x 50.78 x 5.41mm

Product Highlights

  • Brand: Vodafone
  • 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 Vodafone Smart III powers off mid-call at around 25% battery — is the new cell faulty?

It is almost certainly a fuel gauge calibration issue, not a faulty cell. The Smart III's coulomb counter is still reading against the old cell's discharge curve, so it misjudges how much voltage is left when the modem draws current during a call. Run one full discharge — use the phone until it shuts itself off — then charge uninterrupted to 100% without fast charging. That single cycle resets the IC against the new cell's actual curve and the shutdowns stop.

The Smart III won't power on at all after the replacement battery sat in a drawer for a few months — is it dead?

Li-ion cells self-discharge in storage, and if the TLi015A1 dropped below approximately 2.5V per cell, the BMS will have entered lockout mode to prevent damage. The phone won't respond to the power button in this state. Connect the phone to a charger and leave it for at least 30–45 minutes without attempting to power it on — the charge IC needs to push enough current past the BMS lockout threshold before the phone can boot. If the charging indicator still does not appear after an hour, try a different cable and wall adapter before assuming the cell is unrecoverable.

The battery percentage on my Smart III keeps jumping around erratically after I fitted the new cell — 60% one minute, 45% the next.

Erratic percentage readings after a cell swap come from the fuel gauge IC recalibrating on the fly against unfamiliar discharge data. The Smart III's gauge uses stored historical data from the old cell, and until it builds a new reference map, it interpolates poorly under varying load. Let the phone run through two complete discharge-charge cycles — screen on, normal use, down to auto-shutdown each time — and the readings will stabilise as the coulomb counter accumulates enough accurate data points on the new cell.

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