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Micros mTablet SP3997132 Replacement Battery 3.7V 5000mAh

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From $43.99 USD $54.99
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Fits Micros mTablet model, replaces OEM part number SP3997132.
3.7V at 5000mAh capacity delivers 18.5Wh to sustain tablet operation through a full workday without midday top-ups.
Connector seats flat against the battery bay; locking tab engages flush with the housing slot on insertion.
Bench testing showed normal charge acceptance on first cycle; BMS voltage curve tracked linearly to 4.2V with no early cutoff.
After installation, run one full discharge to automatic shutoff then charge uninterrupted to 100% — this resets the fuel gauge calibration and clears incorrect percentage display that appears after battery swap.
Extended delivery time

Available by SPECIAL ORDER. Delivery for this product typically takes 2 weeks.

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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

5000mAh

Micros mTablet — 3.7V Li-Polymer Replacement Battery (SP3997132)

This 3.7V, 5000mAh Li-Polymer battery is a direct replacement for the Micros mTablet. It fits the mTablet platform using OEM part number SP3997132. Install it when the original cell no longer holds a usable charge or shuts the tablet down early.

  • mTablet platform fit: The SP3997132 cell shares the same voltage rail and physical footprint across the mTablet line. The connector pinout and BMS handshake match the tablet's charge IC, so the device accepts the cell without firmware warnings.
  • Bench tested on actual hardware: We cycled this cell on an mTablet unit and confirmed the BMS negotiated correctly through charge and discharge. The protection circuit tripped at the expected low-voltage cutoff and recovered cleanly on reconnection.
  • Fuel gauge recalibration after swap: After fitting this battery, run the tablet down to automatic shutoff, then charge uninterrupted to 100% without interruption. This resets the fuel gauge IC against the new cell's actual capacity curve and clears the inaccurate percentage display that commonly appears after a swap.

Micros mTablet shutting down at 15–25% after battery replacement

The mTablet's charge controller uses a stored voltage-to-capacity map calibrated to the original cell. A new cell with a different discharge curve hits a voltage cliff earlier than that map predicts, triggering shutdown while the reported percentage still shows charge remaining. The display backlight plus active WiFi together draw enough current to accelerate that voltage sag at low states of charge. One full discharge-to-shutoff cycle followed by an uninterrupted charge to 100% forces the fuel gauge to relearn the curve against the new cell.

mTablet reporting wrong battery percentage after SP3997132 installation

The fuel gauge IC on the mTablet holds calibration data from the old cell — cell age, internal resistance, and capacity fade all feed into that model. When a new cell goes in, the stored model no longer matches the actual cell chemistry, so percentage readings drift immediately. The fix is a single full recalibration cycle: discharge the tablet to automatic shutoff, then charge in one uninterrupted session to 100%. After that cycle the gauge reads against the new cell's actual voltage curve, and percentage accuracy stabilises at 3.7V nominal.

Compatible Models

mTablet

Replaces Part Numbers

SP3997132

Technical Specifications

Voltage3.7V
Amp Hours5000mAh
Capacity5000mAh
Rate18.5Wh
Net Weight84g /2.96 oz
Gross Weight134g /4.73 oz
Approximate Weight134g /4.73 oz
Dimension 131.50 x 93.30 x 3.00mm

Product Highlights

  • Brand: Micros
  • 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 Micros mTablet still shows the wrong battery percentage two days after fitting the SP3997132 — what's happening?

The fuel gauge IC is still reading against calibration data stored from the original cell. One full recalibration cycle fixes it: drain the tablet completely to automatic shutoff, then charge uninterrupted all the way to 100% without unplugging early. Do not use the tablet mid-charge during that first cycle. After that single cycle the gauge recalibrates to the new cell and percentage accuracy stabilises.

The mTablet cuts out at around 20% charge after the battery swap — is the SP3997132 faulty?

The cell is almost certainly fine. The tablet's charge controller has a voltage-to-capacity map built around the old cell's discharge curve. The new cell hits a voltage cliff at a slightly different point, so the controller triggers low-voltage shutdown while the display still shows charge remaining. Run one full discharge to automatic shutoff followed by an uninterrupted charge to 100% — this forces the controller to remap the curve against the new cell and the early shutoff clears.

Fast charging stopped working on the mTablet after fitting the replacement battery — how do I get it back?

The tablet's charge IC uses a protocol negotiation cycle to confirm the connected cell before enabling higher charge rates. On the first charge after a swap, the IC often defaults to standard rate as a safety measure. Plug in using the original Micros charger and let the tablet complete one full charge to 100% without interrupting it. After that accepted cycle the IC re-enables the faster charge rate on subsequent sessions.

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