Description
Battery models: BL310 / BL312 (select option above)
Battery capacity: 2500mAh each
Rated voltage: 3.85V
Charge limit voltage: 4.4V
Battery type: Li-Polymer
Compatible with: Lenovo Legion Duel (L79031), Lenovo Legion Duel Pro
Package include: 1 x battery (BL310 or BL312 based on your selection)
Power your Lenovo Legion Duel or Duel Pro gaming phone with this high-quality BL310 or BL312 replacement battery. The Legion Duel series uses a dual-battery design with both BL310 and BL312 working together. This listing allows you to purchase either battery individually—simply select the correct model from the dropdown above. Built-in multi-layer safety protection guards against overcharge, over-discharge, and short circuits. Made with grade A cells. CE, RoHS, and UN38.3 certified for safety compliance.
The Lenovo Legion Duel and Duel Pro feature a 6.65-inch 144Hz AMOLED display, dual USB-C ports (supporting 65W fast charging), dual-fan cooling system, and side-pop-up camera for immersive gaming experiences . The dual-battery architecture (two 2500mAh cells) provides a total capacity of 5000mAh, ensuring stable power delivery during intense gaming marathons.
Important Note: The Legion Duel series requires both BL310 and BL312 batteries to function. If replacing a failed battery, ensure the other battery is also in good condition. For best results, consider replacing both batteries at the same time. This listing allows you to purchase BL310 or BL312 separately—please select the correct model for your needs.
Compatibility Note: Fits Lenovo Legion Duel and Legion Duel Pro L79031 only. Please check your original battery model (BL310 or BL312) before purchasing. Professional installation recommended due to the phone’s complex dual-battery architecture.
Battery Care Tips: Avoid full discharge (keep above 20%). Keep away from high temperatures during intense gaming. If swelling occurs, stop use immediately. For optimal battery health, avoid charging while the device is too hot.
✅ Condition: Brand New – Never used, premium quality
✅ CE / RoHS / UN38.3 Certified – Safety tested
✅ 90-Day Warranty – Hassle-free replacement
✅ Ships in 3-7 days with tracking – Fast delivery
🛡️ Shipping Protection Available at Checkout – Covered against loss, damage, or theft
✅ PayPal Buyer Protection included – Secure checkout
✅ 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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