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Mio MiVue 508 Replacement Battery 3.7V 230mAh FT402035P

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From $23.99 USD $29.99
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Fits Mio MiVue 508, MiVue 518, MiVue 528, MiVue 538 dashcams; OEM part numbers FT402035P and TPC402035.
3.7V, 230mAh lithium-polymer cell delivers 0.85Wh — enough for normal recording cycles and basic parking mode operation on this compact dashcam.
Connector is a two-pin JST housing; battery slides into the vertical slot with the connector facing the circuit board.
We bench-tested this cell against the original FT402035P pack; BMS accepted the charge cycle without fault flags and held voltage steady under sustained recording load.
After installation, complete one full charge-and-record cycle before enabling parking mode — the dashcam's power management needs one cycle to calibrate voltage thresholds against the new cell's internal resistance.
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

230mAh

Mio MiVue 508 / 518 / 528 / 538 — 3.7V Li-Polymer Replacement Battery (FT402035P)

This 3.7V, 230mAh lithium-polymer cell replaces the internal battery in the Mio MiVue 508, 518, 528, and 538 dashcams. It restores the camera's ability to power on with the engine and maintain parking mode recording between drives. Dimensions are 36.80 × 20.10 × 4.00mm — confirm these against your existing cell before installing.

  • MiVue 508–538 internal cell compatibility: These four models share the same internal battery bay, connector orientation, and BMS handshake. The FT402035P part number covers all of them — no firmware flag or voltage mismatch at startup.
  • Bench tested on actual hardware: We cycled this cell through charge and discharge on the MiVue platform and confirmed the BMS accepted the cell without error flags, voltage held steady under sustained recording draw, and thermal output stayed within spec for a compact housing.
  • First-cycle calibration after installation: After fitting a new internal cell, complete one full drive with the dashcam powered via the car charger before relying on parking mode. The dashcam's power management system calibrates parking mode duration against the new cell during that first charge cycle — skipping it can cause premature parking mode cutoff.

Why the MiVue 508 won't start recording on engine start after a battery swap

The MiVue 508 uses the internal battery as a buffer — it draws from the cell briefly before the car charger fully stabilises voltage on engine crank. If the new cell was installed fully discharged, the dashcam may not have enough charge to complete that startup sequence. Connect the dashcam to USB or your car charger for 15–20 minutes before expecting it to auto-start. Once the cell reads above 3.6V, normal ignition-triggered startup resumes.

Footage missing or corrupt after parking mode session

Parking mode clips get corrupted when the camera loses power mid-write. On a degraded or newly installed cell, voltage can sag below the dashcam's write-protection threshold before the file is closed cleanly. The camera cuts power to protect the SD card, but any open file at that moment is lost. Check that the cell is fully charged before a parking mode session and confirm your SD card write speed meets the MiVue's Class 10 minimum — slow cards increase the write window and the corruption risk.

Compatible Models

MiVue 508 MiVue 518 MiVue 528 MiVue 538 MiVue 568 MiVue 588 MiVue 608 MiVue 618 MiVue 658 MiVue 688 MiVue 698 MiVue 698 Dual MiVue 792

Replaces Part Numbers

FT402035P TPC402035

Technical Specifications

Voltage3.7V
Amp Hours230mAh
Capacity230mAh
Rate0.85Wh
Net Weight5.8g /0.20 oz
Gross Weight30.8g /1.09 oz
Approximate Weight30.8g /1.09 oz
Dimension 36.80 x 20.10 x 4.00mm

Product Highlights

  • Brand: Mio
  • 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 MiVue 508 powers on fine while driving but shuts off the moment I unplug the charger — is the new battery faulty?

Not necessarily faulty — the cell is likely still in its first cycle and hasn't reached a usable state of charge yet. The MiVue's internal battery is small at 230mAh, and if it was installed at low charge, it may not yet hold enough to sustain the camera independently. Run the dashcam on car power for a full drive to charge the cell, then test again. If it still cuts out immediately after a full charge cycle, the cell voltage at rest should read between 3.7V and 4.2V — below 3.5V at rest after charging indicates a cell issue.

Parking mode is cutting out much earlier than it did with the original battery — what's causing that?

In the first few cycles after installation, a new lithium-polymer cell often delivers less usable capacity than its rated 230mAh because the electrolyte hasn't fully conditioned. The dashcam's parking mode draws sustained current from the internal cell, so shorter sessions are normal initially. Complete three to five full charge-discharge cycles through normal driving use and parking mode sessions — capacity stabilises after that. If cutoff is still significantly early after five cycles, check that the cell is seated flat with no gap between the cell and the connector — a partial contact increases internal resistance and reduces effective capacity.

The internal battery gets noticeably warm after a long parking mode session — is that a problem?

Some heat is expected. The MiVue housing is compact and sealed, so the cell has limited airflow during sustained parking mode recording. What matters is the degree — warm to the touch is normal, hot enough to be uncomfortable to hold is not. Sustained overheating during parking mode usually means the cell is working harder than it should, which can happen if the parking mode voltage cutoff threshold isn't set correctly in the dashcam's settings. Check the MiVue's parking mode sensitivity and power-off voltage settings in the menu — setting the cutoff to 12.2V for a standard 12V vehicle reduces the sustained draw duration and lowers cell temperature over a session.

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