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Mitac Mio A700 GPS Compatible Battery 3.7V 3000mAh

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Fits Mitac Mio A700 GPS navigator; replaces OEM battery E3MT11124X1.
3.7V 3000mAh Li-Polymer cell restores full capacity to aging Mio A700 units; original packs degrade after 500+ charge cycles.
Connector seats into original battery slot with positive and negative contacts aligned; no adapter required.
We cycled this pack through five full discharges on bench; BMS accepted charge without fault codes and held voltage under sustained draw.
On first power-on after installation, let the device run until auto-shutdown occurs — the fuel gauge IC needs one complete discharge cycle to recalibrate against this cell's discharge curve before resuming normal operation.
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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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.

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⚠️ 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

3000mAh

Mitac Mio A700 — 3.7V Li-Polymer Replacement Battery (E3MT11124X1)

This 3.7V, 3000mAh Li-Polymer battery replaces the OEM E3MT11124X1 cell in the Mitac Mio A700 portable GPS navigator. It fits the A700's battery bay directly, matching the original connector and dimensions (66.90 × 40.72 × 11.67mm). Swap it in when the original cell no longer holds a charge or the device fails to power on.

  • Mio A700 fit: The A700 uses a single-cell Li-Polymer pack at 3.7V nominal. This replacement matches that voltage rail and the BMS handshake the device expects — no firmware flags or charge-inhibit errors on insertion.
  • Bench tested on actual hardware: We cycled this cell through charge and discharge on the bench. The BMS held charge termination at 4.2V and cut off discharge cleanly before the cell dropped below safe floor voltage.
  • Fuel gauge recalibration after installation: Run one full discharge to low-battery warning, then charge to 100% without interruption before resuming normal use. The Mio A700's fuel gauge IC was calibrated to the old cell's discharge curve — one complete cycle resets the coulomb counter against the new cell.

Why the Mio A700 shows wrong battery percentage after a cell swap

The A700 tracks charge state using a fuel gauge IC that builds its model from accumulated charge and discharge data on the original cell. When you install a new cell, that learned model no longer matches the actual discharge curve of the fresh Li-Polymer pack. The gauge may read 80% when the cell is at 60%, or jump several percent in a single minute. One full uninterrupted discharge-charge cycle gives the IC enough data to rebuild an accurate model against the new cell's characteristics.

Mio A700 not powering on after sitting in storage

Li-Polymer cells self-discharge at roughly 2–3% per month. A device left in a drawer for a year can arrive with a cell voltage below 2.5V — the threshold at which the BMS locks out to prevent damage. Connect the A700 to its charger and leave it for at least 30 minutes before pressing the power button. If the screen stays dark but the charge LED activates, the BMS is in recovery mode and is slowly raising cell voltage back above the 2.9V re-enable threshold before it will allow the device to boot.

Compatible Models

Mio A700

Replaces Part Numbers

E3MT11124X1

Technical Specifications

Voltage3.7V
Amp Hours3000mAh
Capacity3000mAh
Rate11.1Wh
Net Weight55g /1.94 oz
Gross Weight80g /2.82 oz
Approximate Weight80g /2.82 oz
Dimension 66.90 x 40.72 x 11.67mm

Product Highlights

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

Frequently Asked Questions

My Mio A700 GPS cuts off suddenly even though it still shows charge remaining — what's happening?

This is a voltage cliff failure. The new Li-Polymer cell can't sustain voltage under the GPS chipset and screen load at once, and the cell voltage drops below the BMS cutoff threshold before the percentage reaches zero. It's most common in the first few cycles before the fuel gauge IC recalibrates to the new cell's actual discharge curve. Run one full discharge-to-warning cycle followed by a full charge, and the reported percentage will align more accurately with real remaining capacity.

The Mio A700 feels warm near the battery compartment while charging — is that a problem?

Some warmth is expected when a charge IC pushes current into a new, high-impedance Li-Polymer cell during the first few cycles. Cell impedance drops as the cell is conditioned, and warmth typically reduces after two or three full charge cycles. If the device becomes hot to the touch or the charger disconnects before reaching 100%, stop charging and check that the charger output matches the A700's rated input. Mild warmth that fades after the first couple of cycles is not a fault.

After fitting the new battery, the percentage jumps around erratically — 65%, then 80%, then 55% without any use. How do I fix this?

The fuel gauge IC is recalibrating. It learned the discharge curve of the original cell over months or years, and the new cell's characteristics don't match that stored model. The coulomb counter is essentially guessing until it has real cycle data to work from. Perform one complete discharge — use the device on GPS until the low-battery warning triggers — then charge uninterrupted to 100%. After that single cycle, the percentage readings should stabilise.

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