Sale!
BA18 5000mAh 3.91V Li-Polymer replacement battery for Vivo S18 and S18 Pro V2344A, front view showing battery label and connector flex cable
BA18 5000mAh 3.91V replacement battery for Vivo S18 and S18 Pro V2344A, back view showing model number BA18, capacity 5000mAh, and voltage 3.91V on spec label

BA18 5000mAh 3.91V Li-Polymer Replacement Battery for Vivo S18 / S18 Pro V2344A 80W FlashCharge

Original price was: $28.99.Current price is: $19.99.

🔘 BA18 5000mAh 3.91V | 🔋 Li-Polymer | 📱 Compatible with Vivo S18 / S18 Pro V2344A 80W FlashCharge

8 in stock

No PayPal account? 💳 Pay with credit/debit card | 🛡️ PayPal Buyer Protected
SKU: BA18 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 $6.00 (approx. €5.20) 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

✅ CE / RoHS / UN38.3 Certified

✅ Built‑in Overcharge / Over‑discharge / Short Circuit Protection

✅ 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: BA18
Capacity: 5000mAh (Typical) / 19.55Wh
Rated voltage: 3.91V
Charge limit voltage: 4.45V
Battery type: Li-Polymer / Li-ion
Compatible with: Vivo S18 (V2344A), Vivo S18 Pro (V2344A)
Replaces OEM part number: BA18
Package include: 1 x battery
Restore the flagship-level performance of your Vivo S18 or S18 Pro with this BA18 5000mAh replacement battery. The S18 series was released in December 2023, featuring a 6.78-inch 120Hz AMOLED display, MediaTek Dimensity 9200+ processor (S18 Pro) or Snapdragon 7 Gen 3 (S18), IP54 splash resistance, and industry-leading 80W FlashCharge technology — capable of charging from 0% to 100% in approximately 41 minutes. Both devices feature vivo‘s Ultra-Thin Blue Ocean Battery technology, packing a 5000mAh battery into a remarkably slim 7.45mm body. This Li-Polymer battery delivers the factory-rated 5000mAh capacity for all-day usage. For reference, third-party retailers sell this battery for approximately $18 to $35.
Built with Grade A Li-Polymer cells and multi-layer safety protection against overcharge, over-discharge, short circuit, and overcurrent. CE, RoHS, and UN38.3 certified for safe transport and use. With a cycle life of 500+ full charge cycles, this replacement battery is designed for long-term durability. The battery is not user‑replaceable — professional installation is strongly recommended as the phone has a sealed glass back cover with strong adhesive.
Compatibility Note: Please power down your device and check your original battery label before ordering. This battery is compatible with Vivo S18 (V2344A) and Vivo S18 Pro (V2344A). The phone has IP54 splash resistance — professional installation is strongly recommended to maintain this protection 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 80W FlashCharge performance, use the original vivo 80W charger that came with your phone. If you don’t use the device 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.

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 “BA18 5000mAh 3.91V Li-Polymer Replacement Battery for Vivo S18 / S18 Pro V2344A 80W FlashCharge”

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 BA18 battery for Vivo S18 is compatible with Vivo S18 (model V2344A, 6.78-inch 120Hz AMOLED display, Snapdragon 7 Gen 3 processor, 5000mAh battery, 80W FlashCharge) and Vivo S18 Pro (model V2344A, 6.78-inch 120Hz AMOLED display, MediaTek Dimensity 9200+ processor, 5000mAh battery, 80W FlashCharge). The S18 series was released in December 2023, featuring vivo‘s Ultra-Thin Blue Ocean Battery technology — packing a 5000mAh battery into a slim 7.45mm body. Both devices support 80W FlashCharge and have IP54 splash resistance. This BA18 Li-Polymer replacement battery for Vivo S18 Pro V2344A delivers the factory-rated 5000mAh capacity. If your Vivo S18 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 BA18 printed on your existing battery before purchasing.

The BA18 5000mAh 3.91V battery has a typical capacity of 5000mAh (19.55Wh) and a rated voltage of 3.91V. Charge limit voltage is 4.45V. The BA18 5000mAh Li-Polymer battery is built with Grade A cells and is CE, RoHS, and UN38.3 certified. The BA18 battery with 19.55Wh energy supports 80W FlashCharge — when paired with the original vivo 80W charger, the S18 series can charge from 0% to 100% in approximately 41 minutes (advertised). Both the S18 and S18 Pro support vivo FlashCharge technology via USB Type-C. The devices also feature IP54 splash resistance. With a cycle life of 500+ full charge cycles, this BA18 replacement battery is designed for long-term durability. For best results, always use the original vivo 80W FlashCharge charger that came with your phone.

Professional installation is strongly recommended for Vivo S18 battery replacement. The S18 and S18 Pro have sealed designs with glass back covers secured by strong adhesive — the batteries are not user‑replaceable. The process to replace BA18 battery in Vivo S18 Pro V2344A requires heating to soften adhesive, careful prying with plastic tools to avoid damaging the 6.78-inch 120Hz AMOLED display, and proper reassembly. The phone has IP54 splash resistance — proper resealing with fresh adhesive is recommended to maintain this level of protection 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), and never reuse a battery after removal. Third-party repair shops typically charge $15-30 for labor.

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