Sale!
L20D1P31 5100mAh 3.86V Li-ion Polymer replacement battery for Lenovo Tab 4 8, Tab 4 8 Plus, and Tab E10 tablets, front view showing battery surface and small 2-pin connector
L20D1P31 5100mAh 3.86V replacement battery for Lenovo Tab 4 8, Tab 4 8 Plus, and Tab E10 tablets, back view showing model number L20D1P31, capacity 5100mAh, and voltage 3.86V on spec label

L20D1P31 5100mAh 3.86V Battery for Lenovo Tab 4 8/Tab 4 8 Plus/Tab E10 Replacement

Original price was: $29.99.Current price is: $21.99.

🔘 L20D1P31 5100mAh 3.86V | 🔋 Li-ion Polymer | 📱 For Lenovo Tab 4 8/4 8 Plus/Tab E10

8 in stock

No PayPal account? 💳 Pay with credit/debit card | 🛡️ PayPal Buyer Protected
SKU: L20D1P31 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

✅ 5100mAh High Capacity – Restores full battery life for Lenovo Tab 4 8, Tab 4 8 Plus, and Tab E10

✅ CE / RoHS / UN38.3 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: L20D1P31
Capacity: 5100mAh (typical) / 19.68Wh
Rated voltage: 3.86V
Charge limit voltage: 4.4V
Battery type: Li-ion Polymer (Grade A cells)
Compatible with: Lenovo Tab 4 8 (TB-8504X), Lenovo Tab 4 8 Plus (TB-8704X), Lenovo Tab E10 (TB-X104F)
Package include: 1 x battery
Restore the reliable performance of your Lenovo tablet with this L20D1P31 5100mAh replacement battery. The Lenovo Tab 4 8 and Tab 4 8 Plus are versatile 8-inch tablets designed for entertainment and productivity, featuring full HD displays and Dolby Atmos audio. The Tab E10 is a 10-inch tablet built for family use and education, offering a large screen for learning and media consumption. After extensive daily charging cycles, the factory battery capacity naturally degrades. This Li‑ion Polymer battery restores the full 5100mAh capacity, bringing back the dependable endurance your tablet was designed for. Built with grade A cells and multi‑layer safety protection against overcharge, over‑discharge, and short circuits. CE, RoHS, and UN38.3 certified.
Designed for Reliable Tablet Performance: Lenovo tablets are built for entertainment, education, and everyday productivity. After 1‑2 years of regular use, the original battery capacity degrades significantly. Common symptoms include: the tablet requiring more frequent charging, unexpected shutdowns at 15‑25% battery remaining, slower charging than when new, or visible battery swelling. This L20D1P31 replacement battery restores the factory‑spec 5100mAh capacity and supports the original charging capability. The battery uses high‑density cell technology with precise voltage control, ensuring stable output and compatibility with the tablet’s original charging circuitry.
Compatibility Note: Fits Lenovo Tab 4 8 (TB-8504X), Lenovo Tab 4 8 Plus (TB-8704X), and Lenovo Tab E10 (TB-X104F). Please confirm your battery model before ordering — L20D1P31 is printed on your original battery. This battery is NOT compatible with Lenovo Tab 4 7, Lenovo Tab 4 10, Lenovo Tab M8, Lenovo Tab P10, or other Lenovo models. The L20D1P31 has specific dimensions and connector layout; using a different battery model may cause charging issues or incorrect battery reporting.

Discover more from Battery.qingsm.tech

Subscribe to get the latest posts sent to your email.

Reviews

There are no reviews yet.

Be the first to review “L20D1P31 5100mAh 3.86V Battery for Lenovo Tab 4 8/Tab 4 8 Plus/Tab E10 Replacement”

Your email address will not be published. Required fields are marked *
To receive the "Verified Owner" badge, please use the same email address you used when placing your order.

Frequently Asked Questions

The L20D1P31 5100mAh battery replacement is compatible with Lenovo Tab 4 8 (TB-8504X), Lenovo Tab 4 8 Plus (TB-8704X), and Lenovo Tab E10 (TB-X104F). If you need a L20D1P31 battery for Lenovo Tab 4 8 TB-8504X or a L20D1P31 battery for Lenovo Tab E10 TB-X104F, this replacement battery is the exact match. For L20D1P31 battery compatibility, please verify your battery model printed on the original unit — L20D1P31 is the correct model for these devices. This battery is NOT compatible with Lenovo Tab 4 7, Lenovo Tab 4 10, Lenovo Tab M8, Lenovo Tab P10, or other Lenovo models. If your current Lenovo Tab 4 8 Plus battery or Lenovo Tab E10 battery now drains quickly or shuts down unexpectedly, this L20D1P31 3.86V 5100mAh Li‑ion Polymer battery will restore full endurance and reliability.

The L20D1P31 5100mAh battery for Lenovo Tab 4 8, Tab 4 8 Plus, and Tab E10 has a typical capacity of 5100mAh (19.68Wh) and a rated voltage of 3.86V, with a charge limit of 4.4V. This L20D1P31 3.86V 5100mAh Li‑ion Polymer battery is built with grade A cells and is CE, RoHS, and UN38.3 certified. For L20D1P31 battery performance, the battery supports the original charging capability of compatible Lenovo tablets. For best L20D1P31 battery performance Lenovo Tab 4 8 Plus, allow 2‑3 full charge cycles after installation to calibrate the battery meter. If your original Lenovo Tab E10 battery now requires more frequent charging instead of lasting as it did when new, this replacement will restore the full 5100mAh capacity and stable voltage output.

Professional L20D1P31 battery installation is recommended for Lenovo Tab 4 8, Tab 4 8 Plus, and Tab E10. To replace L20D1P31 battery in Lenovo Tab 4 8 or replace L20D1P31 battery in Lenovo Tab E10, the technician must carefully heat the back cover to soften adhesive, pry it open to avoid damaging the display or internal components, disconnect the battery's small 2‑pin connector, remove the old battery, and install the new L20D1P31 battery before resealing. For L20D1P31 battery installation, improper handling can damage the display or internal components. For L20D1P31 battery health maintenance and Lenovo tablet battery care tips: 1) Use the original charger and cable for optimal charging. 2) Keep battery level between 20% and 80% for daily use to maximize the lifespan of the 5100mAh cell. 3) Avoid exposing the tablet to high temperatures (above 40°C / 104°F), especially while charging. 4) For long‑term storage (over 2 months), keep the battery at approximately 40‑60% charge. 5) Perform a full calibration cycle after installation: drain the tablet until it auto‑shuts off, then charge uninterrupted to 100%. For L20D1P31 battery care tips, stop using immediately if the battery shows any swelling.

Related products

✅ Ready to order?

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

👉 Add to Cart Now