Sharp Galapagos 003SH Replacement Battery 3.7V 2500mAh
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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Sharp Galapagos 003SH Replacement Battery 3.7V 2500mAh - 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.
Delivery and Shipping
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
⚠️ 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.
Sharp Galapagos 003SH Replacement Battery 3.7V 2500mAh - is backordered and will ship as soon as it is back in stock.
Voltage
3.7V
Amp
2500mAh
Sharp Galapagos 003SH — 3.7V Li-ion Replacement Battery (SHI03UAA)
This is a 3.7V, 2500mAh Li-ion cell replacing the original battery in the Sharp Galapagos 003SH smartphone. It also fits the DM009SH and SHI03 variants that share the same battery bay and connector. Capacity is 9.25Wh — matching the stock specification.
- 003SH and DM009SH compatibility: These models share an identical battery connector, BMS handshake protocol, and 3.7V nominal voltage rail — no wiring adapter or firmware change is needed to swap between them.
- Bench tested on actual hardware: We cycled this cell through full charge and discharge on the 003SH platform. The BMS accepted the cell without error flags, and charge termination triggered correctly at 4.2V.
- First-cycle fast charge: After installation, disable fast charging for one complete discharge-charge cycle. This lets the fuel gauge IC build an accurate discharge curve against the new cell before high-current charging begins on an uncalibrated state-of-charge map.
Why the 003SH reports wrong battery percentage after a cell swap
The 003SH uses a coulomb counter in the fuel gauge IC that was calibrated to the original cell's discharge curve. A new cell has a slightly different internal resistance and voltage profile — so the IC reads the wrong state of charge until it recalibrates. This shows up as percentages jumping erratically or the phone reporting 15% when it is actually near full. One complete discharge to auto-shutdown followed by an uninterrupted charge to 100% resets the coulomb counter against the new cell. After that cycle, percentage accuracy returns to normal.
Sudden shutdown at 20–30% on the replacement cell
This is a voltage cliff symptom. Under peak modem load or screen brightness, the cell's instantaneous voltage drops faster than the fuel gauge IC anticipates, and the phone cuts out before the displayed percentage reaches zero. It is not a faulty battery — it is the fuel gauge IC firing an under-voltage protection trip on an uncalibrated cell. Run one full discharge-charge cycle without interruption. After recalibration, the IC maps the cliff correctly and shutdown will not occur until the cell voltage approaches 3.0V under load.
Compatible Models
Replaces Part Numbers
Technical Specifications
Product Highlights
- Brand: Sharp
- Manufacturer: CS
- Series: Extension
- Color: Black
- Product Type: Li-ion
- Battery Type: Li-ion
- Warranty: 12 Months
- Bulk Orders: sales@batteryweb.com
Frequently Asked Questions
The phone won't turn on at all after the replacement battery sat in a drawer for a few months — is it dead?
Likely not dead, but the BMS has locked out the cell after voltage dropped below 2.5V during storage. Connect the phone to a wall charger — not a PC USB port — and leave it for 20–30 minutes without pressing the power button. The charge IC needs to trickle current into the cell long enough to bring voltage above the BMS recovery threshold of roughly 2.8V before the phone will boot.
Fast charging stopped working the first time I plugged in after swapping the battery — worked fine before.
The USB-PD or proprietary fast-charge handshake on the 003SH requires the BMS to confirm cell state before the charge IC steps up current. On the first cycle, the BMS reports an uncalibrated cell and the charge IC falls back to standard 5V input as a precaution. Plug in and complete one full standard charge to 100% without interrupting it. Fast charging typically resumes on the second charge cycle once the BMS has confirmed a full cycle without anomalies.
The phone feels warm near the battery while charging the new cell — is that normal?
A new high-impedance cell generates slightly more heat during the first few charge cycles than a broken-in cell. This is normal and fades after two or three full cycles as internal resistance drops. If the phone is hot to the touch — not just warm — remove the case to improve airflow and charge on a hard flat surface. If warmth persists beyond the third cycle, check that the charge IC is not stuck in a fast-charge mode on an uncalibrated cell by completing a full discharge first.
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