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LTH21A 3100mAh 3.85V Li-Polymer Replacement Battery for Letv LeMax 2 X820 X822 X821 X829 Quick Charge 3.0

Original price was: $18.99.Current price is: $14.99.

🔘 LTH21A 3100mAh 3.85V | 🔋 Li-Polymer | 📱 Compatible with Letv LeMax 2 X820 / X821 / X822 / X829 Quick Charge 3.0

8 in stock

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SKU: LTH21A Category: Tags: , ,

Description

Battery model: LTH21A
Capacity: 3100mAh (Typical) / 11.94Wh
Rated voltage: 3.85V
Charge limit voltage: 4.4V (max)
Battery type: Li-Polymer / Li-ion
Dimensions: 72.80 x 65.50 x 4.00 mm
Compatible with: Letv LeMax 2 (X820), LeEco Le Max 2 (X821, X822, X829), LeEco Le Max 2 Pro
Replaces OEM part number: LTH21A
Package include: 1 x battery
Restore the battery life of your LeEco Le Max 2 with this LTH21A 3100mAh replacement battery. Compatible with Letv LeMax 2 X820, X821, X822, X829, and LeEco Le Max 2 Pro models. Released in April 2016, the Le Max 2 features a 5.7-inch QHD display, Qualcomm Snapdragon 820 processor, 21MP rear camera, and Qualcomm Quick Charge 3.0 fast charging technology over USB Type-C. This Li-Polymer battery delivers the factory-rated 3100mAh capacity for reliable daily usage. For reference, third-party retailers sell this battery for approximately $15 to $24.
Built with high-quality Grade A Li-Polymer cells and multi-layer safety protection against overcharge, over-discharge, short circuit, overcurrent, over-voltage, and high-temperature conditions. CE, RoHS, and GB 31241-2014 certified for safe transport and use. The LTH21A battery supports Quick Charge 3.0, allowing the Le Max 2 to charge from 0% to 50% in approximately 30 minutes when paired with a compatible QC3.0 charger. With a cycle life of over 500 charges maintaining 80% capacity, this replacement battery is designed for long-term durability. For reference, third-party retailers sell this battery for approximately $15 to $24.
Compatibility Note: Please power down your device and check your original battery label before ordering. Ensure the model number printed matches LTH21A. This battery is compatible with Letv LeMax 2 models X820, X821, X822, X829, and LeEco Le Max 2 Pro. Professional installation is recommended as the phone has a sealed design with strong adhesive. The phone has no official IP water resistance rating, so water seal maintenance is not a concern after replacement.
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 Quick Charge 3.0 performance, use a certified Quick Charge 3.0 charger. If you don’t use the battery for a long time, store it in a dry and cool place and charge it fully once every three months. If you notice swelling or overheating, stop use immediately.

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

CE / RoHS / GB 31241-2014 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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Frequently Asked Questions

The LTH21A battery for Letv LeMax 2 is compatible with Letv / LeEco Le Max 2 models X820, X821, X822, X829, and LeEco Le Max 2 Pro (6GB RAM version). The Le Max 2 was released in April 2016 featuring a 5.7-inch QHD display, Qualcomm Snapdragon 820 processor, 21MP rear camera, and USB Type-C port. This 3100mAh battery for Letv LeMax 2 X820 is a direct replacement for the original LTH21A battery. If your Le Max 2 battery replacement is needed because the phone drains quickly or won‘t hold a charge, this is the correct battery. Please verify your device model in Settings > About Phone and check the battery model LTH21A printed on your existing battery before purchasing.

The LTH21A 3100mAh 3.85V battery has a typical capacity of 3100mAh (11.94Wh) and a rated voltage of 3.85V. Charge limit voltage is 4.4V. It is a Li-Polymer battery built with Grade A cells and is CE, RoHS, and GB 31241-2014 certified. The Le Max 2 supports Qualcomm Quick Charge 3.0 — with a compatible QC3.0 charger, the phone can charge from 0% to 50% in approximately 30 minutes, and from 0% to 100% in about 90 minutes. The battery has a cycle life of over 500 full charge cycles maintaining 80% of its original capacity. For best results, always use a certified Quick Charge 3.0 charger with your phone.

Professional installation is strongly recommended for Letv LeMax 2 battery installation. The Le Max 2 has a sealed design with a metal unibody back cover secured by strong adhesive. The process to replace LTH21A battery in Letv LeMax 2 X820 requires heating to soften adhesive and careful prying to avoid damaging the display or back cover. The phone has no official IP water resistance rating, so water seal maintenance is not a concern after replacement. If you choose DIY phone 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 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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