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CVK400-AA-SLL-A 3500mAh 3.7V Li-ion replacement battery for Samsung CVK400, front view on white background showing battery surface and connector flex cable
CVK400-AA-SLL-A 3500mAh 3.7V replacement battery for Samsung CVK400, back view showing model number CVK400-AA-SLL-A and also compatible with CVK400-AA, capacity 3500mAh, and voltage 3.7V on spec label

CVK400-AA-SLL-A 3500mAh 3.7V Li-ion Replacement Battery for Samsung CVK400

Original price was: $21.99.Current price is: $15.45.

🔘 CVK400-AA-SLL-A 3500mAh 3.7V | 🔋 Li-ion | 📱 For Samsung CVK400

8 in stock

No PayPal account? 💳 Pay with credit/debit card | 🛡️ PayPal Buyer Protected
SKU: CVK400-AA-SLL-A 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

✅ 3500mAh High Capacity – Reliable daily power

✅ 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: CVK400-AA-SLL-A (also compatible with CVK400-AA)
Capacity: 3500mAh / 12.95Wh
Rated voltage: 3.7V
Charge limit voltage: 4.2V
Battery type: Li-ion
Compatible with: Samsung CVK400 Smartphone
Package include: 1 x battery
Revive your Samsung CVK400 with this CVK400-AA-SLL-A 3500mAh replacement battery. This Li-ion battery delivers 3500mAh capacity to keep you connected throughout your day. Built with grade A cells and multi-layer safety protection against overcharge, over-discharge, and short circuits. CE, RoHS, and UN38.3 certified.
Compatibility Note: Fits Samsung CVK400 smartphone. Please confirm your battery model before ordering — CVK400-AA-SLL-A (or CVK400-AA) is printed on your original battery. Professional installation is recommended as the phone has a sealed design.
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. If you notice swelling or overheating, stop use immediately.

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Frequently Asked Questions

The CVK400-AA-SLL-A battery for Samsung CVK400 is compatible with the Samsung CVK400 smartphone. It is also fully compatible with the CVK400-AA battery variant. If you need a Samsung CVK400 battery replacement, this CVK400-AA-SLL-A 3500mAh replacement battery is the exact match. For CVK400-AA-SLL-A battery for Samsung CVK400, please verify your device model and battery model before purchasing — CVK400-AA-SLL-A is printed on your original battery.

The CVK400-AA-SLL-A 3500mAh battery for Samsung CVK400 has a capacity of 3500mAh (12.95Wh) and a rated voltage of 3.7V. Charge limit voltage is 4.2V. This CVK400-AA-SLL-A Li-ion battery is built with grade A cells and is CE, RoHS, and UN38.3 certified. The Samsung CVK400 battery supports standard charging. For CVK400-AA-SLL-A 3.7V battery for Samsung CVK400, grade A cells with multi-layer safety protection ensure reliable performance.

Professional Samsung CVK400 battery installation is strongly recommended for the CVK400-AA-SLL-A battery. The Samsung CVK400 has a sealed design with strong adhesive. To replace Samsung CVK400 battery, the phone requires heating to soften adhesive and careful prying to avoid damaging the display. For CVK400-AA-SLL-A battery installation Samsung CVK400, improper handling may damage the display or the battery management system. If you attempt 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 $15-25 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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