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LI3820T43P3h715345 2800mAh 3.85V Li-Polymer replacement battery for ZTE Grand S Flex, front view on white background
LI3820T43P3h715345 2800mAh 3.85V Li-Polymer replacement battery for ZTE Grand S Flex, front view on non-white background showing battery surface and connector
LI3820T43P3h715345 2800mAh 3.85V replacement battery for ZTE MF910 router, back view showing model number and capacity specification

LI3820T43P3h715345 2800mAh 3.85V Battery for ZTE Grand S Flex MF910 MF920W+ 4G Router

Original price was: $13.99.Current price is: $10.99.

🔘 LI3820T43P3h715345 2800mAh 3.85V | 🔋 Li-Polymer | 📱 For ZTE Grand S Flex / MF910 / MF920 Router

8 in stock

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SKU: LI3820T43P3h715345 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.

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Description

✅ Condition: Brand New – Never used, factory-tested quality

✅ CE / RoHS / UN38.3 Certified – Safety tested

✅ TÜV Rheinland CB Certified – IEC 62133-2:2017

✅ 2800mAh High Capacity – Versatile power for phone or hotspot

✅ 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

⚠️ Low Stock Alert: Only 8 left in stock. Order now to avoid waiting.

Battery model: LI3820T43P3h715345 (also compatible with LI3823T43P3h715345)
Battery capacity: 2800mAh / approx. 10.36Wh
Rated voltage: 3.85V
Charge limit voltage: 4.4V
Battery type: Li-Polymer
Dimensions: approx. 71.16 × 52.05 × 4.35mm
Compatible with: ZTE Grand S Flex Smartphone, ZTE MF910 / MF910S / MF920 / MF920A / MF920S / MF920W+ / MF971 4G LTE Portable Router
Package include: 1 x battery
One battery, multiple uses — keep both your ZTE Grand S Flex smartphone and MF910 series 4G portable router powered with this LI3820T43P3h715345 2800mAh replacement battery. The Grand S Flex is a slim Android phone, while the MF910/MF920 series are popular 4G mobile hotspots for travel and remote work. This Li-Polymer cell delivers reliable capacity for daily calls, messaging, and extended internet connectivity. 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.
Compatibility Note: Compatible with ZTE Grand S Flex (smartphone) and MF910 / MF910S / MF920 / MF920A / MF920S / MF920W+ / MF971 4G LTE routers. LI3820T43P3h715345 and LI3823T43P3h715345 are interchangeable. Please check your original battery model before purchasing.
Battery Care Tips: Avoid full discharge (keep above 20%). Keep away from high temperatures. If swelling occurs, stop use immediately. For best performance, use the original charger that came with your device.

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Frequently Asked Questions

The LI3820T43P3h715345 battery is compatible with ZTE Grand S Flex smartphone and ZTE MF910 / MF910S / MF920 / MF920A / MF920S / MF920W+ / MF971 4G LTE portable routers. This battery is NOT compatible with the original ZTE Grand S (non-Flex), which uses a smaller 1780mAh non-removable battery. Please check your original battery model before purchasing.

The LI3820T43P3h715345 battery has a typical capacity of 2800mAh. However, different manufacturers may use different cell sources: some produce 2000mAh or 2300mAh versions for lower-cost applications. LI3820T43P3h715345 and LI3823T43P3h715345 are interchangeable — both fit the same devices. This listing is for the higher 2800mAh capacity version. If you need a high-capacity replacement battery for your ZTE MF920 router to stay connected during travel, this Li-Polymer cell is a reliable choice. Made with grade A cells, CE, RoHS, and UN38.3 certified.

Yes, this LI3820T43P3h715345 battery has received TÜV Rheinland CB certification (Certificate No. JPTUV-148189) under IEC 62133-2:2017 safety standards. It is also CE, RoHS, and UN38.3 certified for transport safety. Russian retailers offer similar batteries for $15-18 as Cameron Sino brand. Professional installation is recommended for phone replacement. For MF910/MF920 routers, the battery cover is removable, making replacement easier.

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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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