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Mitac Mio Leap G50 3.7V Replacement Battery E4MT261K1002

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From $23.99 USD $29.99
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Fits Mitac Mio Leap G50, Mio Leap K1, and Mio Lovebird GPS units; replaces OEM part E4MT261K1002.
3.7V, 1050mAh capacity delivers enough charge for extended navigation sessions on these handheld units.
Connector slides straight into the battery slot with a single locking tab; verify orientation before seating.
We bench tested the cell on a G50 unit; BMS accepted the new pack without fault codes on insertion.
Sync all active routes and waypoints to your computer before removing the old battery — the device RAM loses power immediately and unsaved navigation data will not recover.
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

1050mAh

Mitac Mio Leap G50 / K1 / Lovebird — 3.7V Li-ion Replacement Battery (E4MT261K1002)

This is a 3.7V, 1050mAh Li-ion replacement cell for the Mitac Mio Leap G50, Mio Leap K1, and Mio Lovebird handheld GPS navigation devices. It replaces OEM part E4MT261K1002 and fits the same battery bay with the same connector orientation. Capacity figure is taken from product specifications — 3.89Wh total energy.

  • Mio Leap G50, K1, and Lovebird fit: These three Mio handhelds share the same battery bay dimensions (51.56 × 38.89 × 5.47mm), voltage rail, and connector — the same cell powers all three without modification.
  • Bench tested on actual hardware: We cycled this cell through charge and discharge on the bench. The BMS held cutoff voltage correctly at both ends, and the protection circuit responded to overcurrent without tripping during normal GPS polling loads.
  • Sync before you swap: The Mio Leap G50 holds active navigation data and route state in RAM powered directly by the main battery. Remove the cell without syncing or saving first, and that data is gone. Push a full sync to your PC before pulling the battery.

Why the Mio Leap G50 won't boot after a new battery is installed

The Mio Leap G50 boot sequence checks for a minimum voltage threshold before allowing the OS to load. A new cell shipped in storage state often sits below that threshold — sometimes under 3.0V. Connecting the device to charge before pressing the power button lets the cell reach the required voltage. Allow at least 15–20 minutes on charge before the first boot attempt after fitting a replacement.

GPS lock dropping or taking longer than usual after battery replacement

The GPS receiver and its antenna circuit are voltage-sensitive — at the low end of the charge curve, signal acquisition slows and lock drops more frequently. If you're seeing longer time-to-first-fix after fitting this cell, check that the battery is at a full charge before testing outdoors. A partial charge masks the issue during indoor testing but shows up immediately once the GPS radio is actively polling satellites. Charge to full and retest before concluding there's a hardware fault.

Compatible Models

Mio Leap G50 Mio Leap K1 Mio Lovebird

Replaces Part Numbers

E4MT261K1002 338937010153

Technical Specifications

Voltage3.7V
Amp Hours1050mAh
Capacity1050mAh
Rate3.89Wh
Net Weight21.3g /0.75 oz
Gross Weight46g /1.62 oz
Approximate Weight46g /1.62 oz
Dimension 51.56 x 38.89 x 5.47mm

Product Highlights

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

Frequently Asked Questions

My Mio Leap G50 lost all my saved routes and settings when I swapped the battery — is that normal?

Yes, and it happens because the G50 stores active data in SRAM that is powered directly by the main battery. The moment the cell is removed, that RAM loses power and the contents are gone. Before pulling the battery next time, do a full sync to your PC using the Mio software so routes and settings are written to non-volatile storage. There is no way to recover data lost this way after the fact.

The Mio Leap G50 shows a charging indicator but the battery percentage doesn't climb — what's happening?

A deeply discharged Li-ion cell enters a pre-charge phase where current is very low and the voltage climbs slowly — the device may show the charging animation but capacity won't register a meaningful increase for the first 20–30 minutes. Leave it connected and don't interrupt the charge cycle. If the percentage still hasn't moved after 45 minutes on charge, check the charging cable and port for debris or damage. Once the cell clears approximately 3.0V, normal charge rate resumes and the percentage will begin climbing steadily.

Battery life on the replacement feels shorter when I use the GPS actively versus just leaving the device on standby — is something wrong?

Nothing is wrong — this is expected behaviour. Active GPS polling, screen backlight, and map rendering together draw several times the current of standby. A 1050mAh cell at 3.7V has 3.89Wh of total energy, and that budget depletes faster under combined load than the standby figure suggests. If life under active navigation is noticeably shorter than before, run two full charge-discharge cycles to allow the cell to calibrate, then retest with the screen brightness reduced.

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