Description
Battery model: W5910
Capacity: 3000mAh (Typical) / 11.4Wh | 2900mAh (Rated)
Rated voltage: 3.8V
Charge limit voltage: 4.35V
Battery type: Li-Polymer
Dimensions: 65.00 x 49.50 x 6.00mm
Weight: 80g
Cycle life: 500+ cycles retains ≥80% capacity
Compatible with: Sunmi M1 commercial handheld POS terminal
Package include: 1 x battery
Keep your Sunmi M1 commercial mobile device powered through demanding workdays with this W5910 3000mAh replacement battery. Designed specifically for the Sunmi M1 POS terminal (released 2017, featuring a 4.5-inch touchscreen display), this Li-Polymer battery delivers the factory-rated 3000mAh capacity — ensuring reliable all-day power for point-of-sale (POS) transactions, inventory management, and other business-critical applications.
Built with Grade A Li-Polymer cells and multi-layer safety protection against overcharge, over-discharge, short circuit, and overcurrent. CE, FCC, and RoHS certified for safe transport and use. Each cell is tested for correct capacity and safety requirements before installation. With a cycle life of 500+ full charge cycles maintaining 80% capacity, this replacement battery is designed for long-term durability. For reference, third‑party retailers sell certified batteries for approximately $22 to $26.
Compatibility Note: Please power down your device and check your original battery label before ordering. Ensure the model number printed matches W5910. This battery is compatible with Sunmi M1 commercial POS terminal only. The device is not water resistant, so water seal maintenance is not a concern after replacement. Professional installation is recommended — the battery is not user‑replaceable and the device has a sealed design.
Battery Care Tips: Avoid full discharge — keep battery level above 20%. Do not expose to high temperatures or direct sunlight. New batteries require 3-5 full charge cycles to reach optimal capacity. For best charging performance, use the original charger that came with your device. If you don’t use the device for a long time, store the battery in a dry and cool place at approximately 40% charge and recharge fully once every three months. If you notice swelling or overheating, stop use immediately.
✅ Condition: Brand New – Never used, factory‑tested quality
✅ Grade A Li-Polymer Cells – True 3000mAh capacity
✅ CE / FCC / RoHS Certified
✅ 90‑Day Warranty from delivery – Longer coverage than major platforms
✅ Ships in 3‑7 days with tracking
🛡️ Shipping Protection Available at Checkout
✅ PayPal Buyer Protection included
✅ 100% Compatibility Guarantee – If it doesn’t fit, we’ll refund you. No questions asked.
⚠️ Low Stock Alert: Only 8 left in stock. Order now to avoid waiting.
✅ Why Our Warranty Stands Out
Unlike marketplace sellers with short buyer protection windows, we handle claims directly — no automated disputes, no endless back-and-forth.
| Compare | ✅ Qingsm Tech | ⚠️ eBay / AliExpress |
|---|---|---|
| Warranty Period | 90 days from delivery | 15-30 days from order confirmation |
| When It Starts | 📦 Upon delivery | ⚠️ Upon order confirmation (even before you receive it) |
| Claims Handling | We do it directly — email us | Automated dispute system, seller dependent |
| After Window Expires | Still can contact us for support | No recourse, seller can ignore you |
🔋 90-day warranty is the industry standard for replacement batteries. Batteries naturally lose capacity over time — this normal wear is not covered. Warranty applies to manufacturing defects only.
📦 Shipping Cost & Delivery Time ( Economy Shipping from China )
📦 Note: Batteries are classified as hazardous goods and must be shipped via specialized channels, which may take slightly longer than standard couriers. Delivery times are estimates; actual delivery may be affected by customs, weather, or other unforeseen circumstances.
| Destination | Freight (USD) | Est. Delivery Time |
|---|---|---|
| United States | $7.80 | 8-20 days |
| Canada | $6.80 | 18-45 days |
| Mexico | $10.00 | 30-60 days |
| Germany, France, United Kingdom, Greece | $6.50 | 18-45 days |
| Ireland, Austria, Belgium, Poland, Denmark, Switzerland, Portugal, Norway, Slovakia, Spain, Hungary, Italy, Czech Republic, Luxembourg, Netherlands, Sweden, Cyprus | $8.00 | 18-45 days |
| Croatia, Finland, Lithuania, Latvia, Slovenia | $8.00 | 30-60 days |
| Romania | $14.00 | 30-60 days |
| South Korea, Japan, Australia, New Zealand, Israel, Malaysia, Singapore, Thailand, Philippines, Kazakhstan | $7.50 | 18-45 days |
| United Arab Emirates, Saudi Arabia, Vietnam, Chile, Peru, Colombia, Brazil | $18.00 | 25-60 days |
* Delivery times are estimates; actual delivery may be affected by customs or other factors. If your country is not listed, we are currently unable to ship batteries to that destination.
🇧🇷 Note for Brazil: Brazilian customs can occasionally cause delays of up to 80 days or more. And please indicate the recipient’s CPF, as it is required for Brazilian customs and shipping. Thanks ! We appreciate your understanding.
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