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BT9000HT 4150mAh 3.85V Li-ion replacement battery for Umidigi A9 Pro, front view on white background
BT9000HT 4150mAh 3.85V replacement battery for Umidigi A9 Pro, back view showing model number BT9000HT and capacity specification

BT9000HT 4150mAh 3.85V Battery for Umidigi A9 Pro Replacement

Original price was: $24.99.Current price is: $19.99.

🔘 BT9000HT 4150mAh 3.85V | 🔋 Li-ion Polymer | 📱 For Umidigi A9 Pro (Black/White Label Random)

8 in stock

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SKU: for Umidigi A9 Pro Category: Tags: , , ,
📦 Shipping, Warranty & After-Sales Information (Click to expand ▼)

✅ Why Our Warranty Stands Out

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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

✅ 4150mAh High Capacity – Restores full battery life for Umidigi A9 Pro

✅ 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: BT9000HT
Capacity: 4150mAh / 15.98Wh
Rated voltage: 3.85V
Charge limit voltage: 4.4V
Battery type: Li-ion Polymer (Grade A cells)
Compatible with: Umidigi A9 Pro
Package include: 1 x battery
📌 Important Note: This battery comes with either a black label or white label. Both are identical in capacity, voltage, and performance — only the label color differs. The color will be shipped randomly based on available stock.
Restore the reliable power of your Umidigi A9 Pro with this BT9000HT 4150mAh replacement battery. The Umidigi A9 Pro is a value-focused smartphone popular in international markets, featuring a large display and capable camera system. After years of use, the original battery capacity naturally degrades. This Li-ion Polymer battery restores the full 4150mAh capacity, bringing back the dependable daily performance this device 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 Everyday Reliability and Value: The Umidigi A9 Pro was created for users who want a capable smartphone without the premium price tag. The 4150mAh battery originally provided approximately a full day of moderate use. However, after years of charging cycles, battery capacity degrades significantly. Common symptoms include: the device requiring multiple charges per day, unexpected shutdowns at 15-25% battery remaining, slower charging than when new, or visible battery swelling. This replacement restores the original battery life, allowing you to continue using your A9 Pro without interruption. The BT9000HT battery supports the phone’s original charging specifications, ensuring reliable power delivery. Unlike many modern smartphones with glued-in batteries, the Umidigi A9 Pro features a removable back cover — making replacement significantly easier for DIY users.
Compatibility Note: Fits Umidigi A9 Pro only. Please confirm your battery model before ordering — BT9000HT is printed on your original battery. This battery is NOT compatible with Umidigi A9, Umidigi A11, Umidigi Power series, or other Umidigi models. The A9 Pro uses a distinct 4150mAh battery; using a different battery model may cause charging issues or incorrect battery reporting.

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Frequently Asked Questions

The BT9000HT battery for Umidigi A9 Pro is compatible with Umidigi A9 Pro only. If you need an Umidigi A9 Pro battery replacement, this BT9000HT 4150mAh battery is the exact match. The Umidigi A9 Pro features a value-focused design with a removable back cover. For BT9000HT battery for Umidigi A9 Pro compatibility, please verify your device model in Settings > About Phone. This battery is NOT compatible with Umidigi A9, Umidigi A11, Umidigi Power series, or other Umidigi models. Also note this battery ships with either a black or white label — both are identical in performance and specs. If your Umidigi A9 Pro battery drains quickly or won't hold a charge, this BT9000HT replacement battery will restore full performance.

The BT9000HT 4150mAh battery for Umidigi A9 Pro has a typical capacity of 4150mAh (15.98Wh) and a rated voltage of 3.85V, with a charge limit of 4.4V. This BT9000HT 3.85V 4150mAh Li-ion Polymer battery is built with grade A cells and is CE, RoHS, and UN38.3 certified. For Umidigi A9 Pro battery life after replacement, expect approximately a full day of moderate use on a single charge. The Umidigi A9 Pro 4150mAh battery performance provides reliable endurance for calls, messaging, and light browsing. For best performance, allow 2-3 full charge cycles after installation to calibrate the battery meter. If your original battery now requires daily multiple charges or shuts down at 15-25% remaining, this replacement will restore the original battery life.

Replacing the Umidigi A9 Pro battery is relatively straightforward because the phone features a removable back cover. For Umidigi A9 Pro battery replacement guide: 1) Power off the phone completely. 2) Remove the back cover by prying from the notch at the bottom edge. 3) Locate the BT9000HT battery. 4) Disconnect the battery's small 2-pin connector by pulling the plug (not the wires). 5) Remove the old battery — it lifts out easily. 6) Connect the new BT9000HT battery — the connector is keyed and only fits one way. 7) Place the new battery in the compartment and snap the back cover back on. For BT9000HT battery installation Umidigi A9 Pro, no special tools or heat gun required. For Umidigi A9 Pro battery health maintenance: 1) Use only a standard 5V/2A charger. 2) Keep battery level between 20% and 80% for daily use to maximize lifespan. 3) Avoid exposing the phone to high temperatures (above 40°C / 104°F). 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 phone until it auto-shuts off, then charge uninterrupted to 100%. For Umidigi A9 Pro battery care tips, stop using immediately if the battery shows any swelling.

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