SBP-23 Garmin-Asus Nuvifone M10 Compatible Battery 3.7V 1200mAh
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SBP-23 Garmin-Asus Nuvifone M10 Compatible Battery 3.7V 1200mAh - is backordered and will ship as soon as it is back in stock.
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Battery Care Tips
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.
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Delivery and Shipping
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Disclaimer
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🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.
SBP-23 Garmin-Asus Nuvifone M10 Compatible Battery 3.7V 1200mAh - is backordered and will ship as soon as it is back in stock.
Voltage
3.7V
Amp
1200mAh
Garmin-Asus Nuvifone M10 / A10 — 3.7V Li-ion Replacement Battery (SBP-23)
This is a 3.7V 1200mAh Li-ion cell replacing OEM part SBP-23 (also listed as 361-00048-00). It fits the Nuvifone M10, M10E, and A10 — a GPS-integrated smartphone platform that combines active navigation with standard voice and data functions. Voltage and connector match the original spec exactly.
- M10, M10E, and A10 compatibility: All three models share the same battery bay geometry, 3.7V nominal rail, and contact layout. The SBP-23 part number covers the full platform. No adapter or modification needed — the connector seats the same way across all three variants.
- Bench tested on actual hardware: We ran this cell through charge and discharge cycles on the M10 platform. The BMS accepted charge from the device's internal charge IC without tripping overcurrent protection, and the fuel gauge IC began tracking the new cell's discharge curve from the first cycle onward.
- Fuel gauge recalibration on first use: After installing this cell, disable any fast-charge mode and run one complete discharge-charge cycle before normal use. The M10's fuel gauge IC holds the old cell's discharge curve in memory. One full cycle lets it recalibrate against the new cell before high-current charging starts pushing into an uncalibrated state.
Why the Nuvifone M10 shuts down suddenly at 20–30% charge remaining
The M10 runs a GPS receiver and modem stack simultaneously — both spike current draw well above idle levels. An aged or degraded cell may show 25% state-of-charge on screen but cannot sustain voltage under that combined load. When the cell voltage drops below the BMS cutoff threshold during a load spike, the phone shuts off immediately regardless of what the percentage indicator shows. This is a cell-level voltage cliff, not a firmware bug. Replacing the cell resolves it — a fresh cell at 1200mAh capacity holds its voltage rail stable through those draw spikes.
Phone won't power on after the battery sat in storage
Li-ion cells self-discharge during storage. If the Nuvifone M10 sat unused for several months, the cell voltage may have dropped below 2.5V — the point where the BMS enters lockout to prevent damage. In lockout, the phone shows nothing on screen and appears completely dead. Connect it to a charger and leave it for 20–30 minutes without attempting to power it on. The charge IC will trickle current into the cell at a safe rate until voltage climbs above the BMS recovery threshold, typically around 2.9V, at which point normal charging resumes.
Compatible Models
Replaces Part Numbers
Technical Specifications
Product Highlights
- Brand: Garmin-Asus
- Manufacturer: CS
- Series: X-Longer
- Color: Black
- Product Type: Li-ion
- Battery Type: Li-ion
- Warranty: 12 Months
- Bulk Orders: sales@batteryweb.com
Frequently Asked Questions
The battery percentage on my Nuvifone M10 is jumping around after I put in the new cell — is something wrong with it?
Nothing is wrong with the cell. The fuel gauge IC on the M10 stores the discharge curve of the old battery and uses it to estimate state-of-charge on the new one. Because the new cell has a different impedance profile, the percentage reading is unreliable until the IC recalibrates. Run one full discharge down to auto-shutdown followed by a complete charge to 100% without interruption — after that cycle, the fuel gauge reads the new cell's curve and percentage stabilises.
My Nuvifone M10 is noticeably warm near the battery compartment while charging the new cell — should I be concerned?
Mild warmth on the first few charge cycles is expected. A new cell starts with higher internal impedance than a well-cycled one, and the charge IC pushes current into that resistance, generating heat. We measured surface temps on the bench during initial charging — warmth was present but stayed within normal operating range. If the device becomes hot to the touch or the screen dims unexpectedly during charging, disconnect it and let it cool before continuing. Warmth should reduce noticeably after three to four full charge cycles as the cell's impedance settles.
The GPS and call functions on the M10 drain the new battery much faster than I expected compared to navigation-only use — is the cell underspec?
The cell is not underspec. The Nuvifone M10 draws significantly more current when the GPS receiver and cellular modem run together than when either runs alone. The 1200mAh rating matches the original SBP-23 spec exactly. What changes the discharge rate is load — simultaneous GPS acquisition, active call, and screen-on state can pull three to four times the current of standby. Reduce screen brightness and close background processes during combined GPS-and-call use to keep draw within a range the 1200mAh cell handles most efficiently.
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