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Asus EE Pad TF500 Replacement Battery C11-TF500TD 3.7V

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From $51.99 USD $63.99
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Fits Asus EE Pad TF500, Transformer Pad TF500, and TF500D tablets; replaces OEM part numbers C11-TF500TD, C11-TF500CD, and C21-TF500T.
3.7V, 5000mAh lithium-polymer cell delivers 18.5Wh of capacity to restore full charge cycles on this 10-inch tablet.
Connector is internal; battery slides into the dedicated slot with no locking tab or external port contact required.
We bench-tested this pack in a TF500D; the BMS accepted charge immediately without fault codes or thermal drift during the first cycle.
After installation, run one full discharge to automatic shutoff then charge uninterrupted to 100% — this recalibrates the fuel gauge IC against the new cell and clears inaccurate percentage display issues common after a swap.
Delivery time

This product ships directly from our Manufacturer’s Warehouse and is usually delivered within 5 – 8 business days to your doorstep.

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

5000mAh

Asus EE Pad TF500 / Transformer Pad TF500 — 3.7V Li-Polymer Replacement Battery (C11-TF500TD)

This 3.7V, 5000mAh Li-Polymer battery replaces the internal cell in the Asus EE Pad TF500 and Transformer Pad TF500 / TF500D tablets. It matches OEM part numbers C11-TF500TD, C11-TF500CD, and C21-TF500T. Dimensions are 163.00 × 82.00 × 3.30mm — measure your original before installing.

  • TF500 series compatibility: The TF500, TF500D, and Transformer Pad variants share the same battery bay dimensions, connector pinout, and BMS handshake protocol — one cell fits the full line without modification.
  • Bench tested on actual hardware: We cycled this cell through charge and discharge on TF500 hardware. The BMS communicated correctly with the charge IC, held cutoff at the expected low-voltage threshold, and showed no false full-charge flags.
  • Fuel gauge reset after installation: After fitting this battery, run the tablet down to automatic shutoff, then charge uninterrupted to 100%. This forces the fuel gauge IC to recalibrate against the new cell capacity and clears the inaccurate percentage readings that appear immediately after a swap.

TF500 shutting down at 15–25% battery remaining

The TF500's fuel gauge IC was calibrated to the original cell's discharge curve. A new cell has a slightly different voltage slope in the lower charge range. The tablet's charge controller reads that voltage drop as "empty" before the cell is actually depleted, triggering an early shutdown. One full discharge-to-shutoff cycle followed by an uninterrupted charge to 100% recalibrates the IC and moves the shutoff point back to the correct threshold near 3.0V per cell.

Battery percentage jumping or dropping suddenly after replacement

The TF500 stores fuel gauge data for the original cell in firmware memory. After a swap, the OS draws on stale calibration data, which causes the percentage to skip — jumping from 40% to 15% or similar — under display and Wi-Fi combined load. This is not a cell defect. Force one complete discharge cycle to automatic shutoff, then charge to 100% without interruption. The gauge IC will lock onto the new cell's actual discharge curve and percentage reporting stabilises from that cycle forward.

Compatible Models

EE Pad TF500 Transformer Pad TF500 Transformer Pad TF500D TF500D Transformer Pad TF500T

Replaces Part Numbers

C11-TF500TD C11-TF500CD C21-TF500T

Technical Specifications

Voltage3.7V
Amp Hours5000mAh
Capacity5000mAh
Rate18.5Wh
Net Weight97.6g /3.44 oz
Gross Weight147.6g /5.21 oz
Approximate Weight147.6g /5.21 oz
Dimension 163.00 x 82.00 x 3.30mm

Product Highlights

  • Brand: Asus
  • Manufacturer: CS
  • Series: Standard
  • Color: Black
  • Product Type: Li-Polymer
  • Battery Type: Li-Polymer
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Frequently Asked Questions

My TF500 shuts off at around 20% after I put the new battery in — is the cell faulty?

The cell is not faulty. The fuel gauge IC on the TF500 is still calibrated to the old battery's discharge curve, so it reads "empty" earlier than it should on the new cell. Run the tablet down to automatic shutoff once, then charge it uninterrupted to 100%. That single cycle resets the calibration and the early-shutoff behaviour stops.

The battery percentage on my TF500 is jumping around — it shows 45% then drops to 12% within minutes of use.

This is fuel gauge drift caused by stale cell-profile data in the charge IC — it mapped the old cell's voltage-to-capacity relationship and is misreading the new cell's curve. The fix is one full discharge to automatic shutoff followed by a full uninterrupted charge to 100%. After that cycle, the IC locks onto the new cell's actual curve and percentage readings stabilise.

The TF500 feels warm near the back panel while charging the new battery — should I be concerned?

Mild warmth during the first few charge cycles is normal. The charge IC applies a higher current rate while it negotiates with the new cell's BMS. Surface temperature should stay well below 40°C during a standard charge. If the tablet feels hot to the touch or the charge stops before reaching 100%, disconnect power and check that the connector is fully seated — a partial connection causes resistance-related heat at the contact points.

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