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Cameron Sino Technology Limited (Smartphone)  |  SKU: CS-OTB502SL  |  Barcode: 4894128175070

3.85V, Li-ion, 2850mAh, SmartPhone battery fits At&t, Alcatel, Tli028c1, 1b 2020, Ot-5002a, 10.97Wh

🚨 Only 2 Left in stock at our Burlington, Ontario warehouse! Stock is disappearing fast! Pickup NOT available for this product
Sale price $20.99 CAD Regular price $25.95

Cameron Sino CS-OTB502SL Replacement Battery for Alcatel and AT&T Smartphones – 2850mAh

Power Up Your Alcatel or AT&T Device with Reliable Performance

Stay connected longer with the Cameron Sino CS-OTB502SL replacement battery, specifically designed for select Alcatel and AT&T smartphones. With a powerful capacity of 2850mAh and a voltage of 3.85V, this high-quality Li-ion battery delivers an impressive 10.97Wh of energy, keeping your phone powered throughout the day—whether for calls, messaging, browsing, or streaming.

Perfect for replacing a weak or failing original battery, the CS-OTB502SL offers a precise fit and optimal performance. Built using premium-grade cells, this battery ensures long-lasting durability, safety, and peace of mind, even with extended use. Whether you’re using your smartphone for personal or business needs, this battery will keep you connected when it matters most.

🔋 Product Features:

  • Battery Type: Li-ion
  • Voltage: 3.85V
  • Capacity: 2850mAh
  • Energy: 10.97Wh
  • Color: Black
  • Dimensions: 96.20 x 42.15 x 4.60mm
  • Net Weight: 45.6g / 1.61oz
  • Gross Weight: 95.6g / 3.37oz
  • EAN Code: 4894128175070

✅ Why Choose Cameron Sino Batteries?

  • Superior Battery Life: Enjoy extended usage with a 2850mAh capacity, ideal for everyday and heavy mobile users alike.
  • High-Quality Build: Engineered with top-tier components that offer enhanced safety, durability, and stable performance.
  • Safety First: Designed to protect against overcharging, overheating, and short-circuits, ensuring reliable power every time.
  • Exact Fit: Custom-built for seamless integration into your Alcatel or AT&T device for a hassle-free replacement.

📱 Compatible Models (in alphabetical order):

Alcatel: 1B 2020, OT-5002A, OT-5002D, OT-5002D_EEA, OT-5002F, OT-5002H, OT-5002H_EEA, OT-5002I, OT-5002M, OT-5002R, OT-5002S, OT-5002X
AT&T: 4188C

🔧 Compatible Part Numbers:

Alcatel: TLi028C1, TLi028C7, TLi028D7

🔁 30-Day Return & 1-Year Replacement Warranty

Buy with confidence—your purchase of the CS-OTB502SL comes with a 30-day return policy and a 1-year replacement warranty. We stand behind our products and want you to be fully satisfied with your battery upgrade.

Upgrade to a Cameron Sino Battery and Stay Powered All Day!

Don’t let a fading battery slow you down. Replace it with the CS-OTB502SL and restore your smartphone’s performance with reliable, long-lasting power—perfect for both work and play!

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💡 Shipping heavy or bulk items?

If your order includes multiple heavy products, we recommend requesting a custom quote — we may be able to arrange a better rate with a transport truck! 

Please note: We reserve the right to send heavier items by transport truck if the carrier's maximum weight per package is exceeded or if we consider it too risky to place with a courier due to the possibility of damage occurring.

🔋 What’s mAh All About?

mAh stands for milliamp hours—basically, how much "fuel" your battery can hold. A higher or lower mAh than your original battery? No worries! 🙌 It won’t affect charging or operation—just means your device might run a bit longer or shorter between charges. Still 100% compatible. Still 100% awesome. 💪✨

Before ordering please read

Ensure the original battery model number is mentioned in our product description and verify that your device model number is also listed in the description.

How to Look after your new lithium battery!!

See how to look after your battery if its lithium Lithium Care

Delivery and Shipping

See our shipping policy and details at this link Shipping Details

📸 Send Us Your Battery Image

Not sure which replacement battery you need? Just snap a Photo / Video of your current battery and send it our way! Our team will quickly identify the exact match and recommend the perfect replacement model — no guesswork, no hassle.

🔍 Fast, Expert Assistance

We’ve helped thousands of customers find the right battery — let us do the same for you. Whether it’s for an alarm system, emergency light, or industrial equipment, we’ve got you covered.

📤 Click below to post your image and get started:

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