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BLP743 3800mAh 3.87V Li-ion Polymer replacement battery for OnePlus 7T HD1900, front view showing battery surface and small 2-pin connector
BLP743 3800mAh 3.87V replacement battery for OnePlus 7T HD1900, back view showing model number BLP743, capacity 3800mAh, and voltage 3.87V on spec label

BLP743 3800mAh 3.87V Battery for OnePlus 7T Replacement

Original price was: $25.99.Current price is: $18.99.

🔘 BLP743 3800mAh 3.87V | 🔋 Li-ion Polymer | 📱 For OnePlus 7T HD1900 HD1901 HD1903 HD1905 HD1907 (Warp Charge 30T)

8 in stock

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SKU: BLP743 Category: Tags: , , , ,
📦 Shipping, Warranty & After-Sales Information (Click to expand ▼)

✅ Why Our Warranty Stands Out

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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

✅ 3800mAh High Capacity – Restores full battery life for OnePlus 7T

✅ 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: BLP743
Capacity: 3800mAh / 14.7Wh
Rated voltage: 3.87V
Charge limit voltage: 4.45V
Battery type: Li-ion Polymer (Grade A cells)
Compatible with: OnePlus 7T (HD1900, HD1901, HD1903, HD1905, HD1907)
Package include: 1 x battery
Revive your OnePlus 7T with this BLP743 3800mAh replacement battery. Released in September 2019, the OnePlus 7T was a landmark device featuring a 6.55-inch 90Hz Fluid AMOLED display, Snapdragon 855+ processor, and the iconic circular triple-camera array. The 3800mAh battery combined with Warp Charge 30T provided excellent all-day endurance. After 5-6 years of daily use, the original battery has likely degraded significantly. This Li-ion Polymer battery restores the full 3800mAh capacity, bringing back the smooth, fast performance the 7T was known for. Built with grade A cells and multi-layer safety protection against overcharge, over-discharge, and short circuits. CE, RoHS, and UN38.3 certified.
Why This Battery Replacement Matters for OnePlus 7T Users: The OnePlus 7T was celebrated for its 90Hz display — one of the first phones to bring high refresh rates to the mainstream. However, higher refresh rates consume more power, and after years of use, the original battery struggles to keep up. Common symptoms include: the phone needing multiple charges per day, shutting down at 15-25% battery remaining, slower charging than the original Warp Charge 30T speed, or the battery swelling. This replacement restores the original battery life and fast charging capability. The BLP743 battery supports Warp Charge 30T — reaching approximately 70% in 30 minutes and fully charged in about 60 minutes — so you can get back to gaming, streaming, or work quickly. A fresh battery also brings back the responsive, lag-free experience that made the 7T a fan favorite. The 90Hz display combined with a fresh battery delivers the smooth scrolling and fluid animations the phone was designed for.
Compatibility Note: Fits OnePlus 7T (HD1900, HD1901, HD1903, HD1905, HD1907) only. Please confirm your battery model before ordering — BLP743 is printed on your original battery. This battery is NOT compatible with OnePlus 7, OnePlus 7 Pro, OnePlus 7T Pro, OnePlus 8 series, or other OnePlus models. The OnePlus 7T uses a distinct battery design; using a different battery may cause fitment or charging issues.

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Frequently Asked Questions

The BLP743 battery for OnePlus 7T is compatible with OnePlus 7T (models HD1900, HD1901, HD1903, HD1905, and HD1907). If you need a OnePlus 7T battery replacement for HD1900 or HD1905, this BLP743 3800mAh battery is the exact match. The OnePlus 7T features a 6.55-inch 90Hz Fluid AMOLED display, Snapdragon 855+ processor, and 48MP triple-camera system. For BLP743 battery for OnePlus 7T compatibility, please verify your device model in Settings > About Phone. This battery is NOT compatible with OnePlus 7, OnePlus 7 Pro, OnePlus 7T Pro, OnePlus 8 series, or other OnePlus models. If your OnePlus 7T battery drains quickly or won't hold a charge, this BLP743 replacement battery will restore full performance.

The BLP743 3800mAh battery for OnePlus 7T has a typical capacity of 3800mAh (14.7Wh) and a rated voltage of 3.87V, with a charge limit of 4.45V. This BLP743 3.87V 3800mAh Li-ion Polymer battery is built with grade A cells and is CE, RoHS, and UN38.3 certified. For OnePlus 7T battery life after replacement, expect approximately a full day of heavy use on a single charge. The OnePlus 7T 3800mAh battery performance provides excellent endurance for 90Hz display usage, gaming, and media consumption. Charging the OnePlus 7T battery with the original Warp Charge 30T adapter takes approximately 30 minutes to 70% and 60 minutes to full. 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 and fast charging speed.

Professional OnePlus 7T battery installation is recommended. The OnePlus 7T has a sealed glass back with strong adhesive. To replace OnePlus 7T battery HD1900, the technician must heat the back cover to soften adhesive, carefully pry it open to avoid cracking the glass, disconnect the battery's small 2-pin connector, remove the old battery (lightly adhered), and install the new BLP743 battery before resealing. The 6.55-inch 90Hz Fluid AMOLED display is fragile, and improper prying can damage it. Third-party repair shops typically charge $20-35 for labor. OnePlus official battery replacement costs vary by region. For OnePlus 7T battery health maintenance: 1) Use only the original OnePlus Warp Charge 30T charger and cable for optimal charging. 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), 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 phone until it auto-shuts off, then charge uninterrupted to 100% using the original Warp Charge 30T charger. For OnePlus 7T battery care tips, stop using immediately if the battery shows any swelling.

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