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W5910 3000mAh 3.8V Li-Polymer replacement battery for Sunmi M1 POS terminal, front view showing battery label
W5910 3000mAh 3.8V replacement battery for Sunmi M1, back view showing model number and capacity rating on spec label

W5910 3000mAh 3.8V Li-Polymer Replacement Battery for Sunmi M1 POS Terminal 1 Year Warranty

Original price was: $26.99.Current price is: $22.99.

🔘 W5910 3000mAh 3.8V | 🔋 Li-Polymer (Grade A) | 📱 Compatible with Sunmi M1 POS Terminal 1‑Year Warranty

8 in stock

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SKU: w5910 Category: Tags: , ,
📦 Shipping, Warranty & After-Sales Information (Click to expand ▼)

✅ 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 Period90 days from delivery15-30 days from order confirmation
When It Starts📦 Upon delivery⚠️ Upon order confirmation (even before you receive it)
Claims HandlingWe do it directly — email usAutomated dispute system, seller dependent
After Window ExpiresStill can contact us for supportNo 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 and may be affected by customs, weather, or other unforeseen circumstances. If your country is not listed in the table below, we are currently unable to ship batteries to that destination.

DestinationFreight (USD)Est. Delivery Time
United States$7.808–15 days
Canada$6.8018–30 days
Mexico$10.0030–60 days
Germany, France, United Kingdom, Greece$6.5018–30 days
Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Hungary, Ireland, Italy, Luxembourg, Netherlands, Norway, Poland, Portugal, Slovakia, Spain, Sweden, Switzerland$8.0018–30 days
Croatia, Finland, Lithuania, Latvia, Slovenia$8.0030–50 days
Bulgaria, Romania$14.0030–50 days
South Korea, Japan, Australia, New Zealand, Israel, Malaysia, Singapore, Thailand, Philippines, Kazakhstan$7.5018–30 days
United Arab Emirates, Saudi Arabia, Vietnam, Chile, Peru, Colombia, Brazil$18.0025–60 days

🇧🇷 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.

🇪🇺 Note for EU countries: Due to new EU customs regulations effective July 1, 2026, a flat tariff fee of $4.00 (approx. €3.50) applies to shipments to EU countries. This fee covers customs tariff, handling, and payment processing costs, and will be added at checkout. Thank you for your understanding.

🔋 Can't find your battery model? Use our FREE Battery Lookup Service – tell us your device and we'll find a match within 24 hours. 👉 battery.qingsm.tech/find-my-battery

Description

✅ 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.

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.

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Frequently Asked Questions

The W5910 battery for Sunmi M1 is compatible with the Sunmi M1 commercial handheld POS terminal. The Sunmi M1 was released in 2017 featuring a 4.5-inch touchscreen display, runs Android, and is designed for point‑of‑sale (POS), inventory management, and business data collection applications. This 3000mAh battery for Sunmi M1 is a direct replacement for the original W5910 battery. If your Sunmi M1 battery replacement is needed because the device drains quickly or won't hold a charge, this is the correct battery. Please verify your device model and check the battery model W5910 printed on your existing battery before purchasing.

The W5910 3000mAh 3.8V battery has a typical capacity of 3000mAh (11.4Wh) and a rated voltage of 3.8V. Charge limit voltage is 4.35V. It is a Li-Polymer battery built with Grade A cells and is CE, FCC, and RoHS certified. The Sunmi M1 supports standard charging via USB — a full charge takes approximately 3‑4 hours. With 500+ charge cycles and a 1‑year warranty, this battery is designed for long‑term commercial use. For best results, always use the original charger that came with your device.

Professional installation is strongly recommended for Sunmi M1 battery replacement. The Sunmi M1 has a sealed design with a plastic back cover secured by strong adhesive — the battery is not user‑replaceable according to the official Sunmi user guide. The device has no official IP water resistance rating, so water seal maintenance is not a concern after replacement. If you choose DIY device battery replacement, watch a full teardown tutorial before starting, use a heat gun at low temperature (no more than 70°C), use plastic tools to avoid damaging the display or internal components, and never reuse a battery after removal. Third-party repair shops typically charge $15-30 for labor.

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This battery is in stock and ready to ship within 3-7 days. 90-day warranty included.

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