
PISEN Phone i11 built-in battery TS-MT-I11
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Revive Your Phone with a High-Performance 3110mAh Replacement Battery
Is your phone’s battery not lasting as long as it used to? Upgrade with our 3110mAh replacement battery and experience a significant boost in performance. Here's why this battery is a game-changer:
- Longer-lasting power: With a 3110mAh capacity, enjoy more screen time, calls, and app usage without constantly searching for a charger.
- Improved performance: Stay connected and productive with reliable energy that keeps your phone running smoothly all day long.
- Easy installation: Quick and hassle-free setup so you can get back to using your phone without delay.
- Safety and durability: Built to meet the highest standards, providing you with peace of mind during every charge.
- Enhanced phone life: Say goodbye to a sluggish phone and hello to more efficiency and power.
Warranty Terms & Conditions
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This product is covered by a 12-month (1-year) warranty under the conditions specified by the brand.
The warranty covers manufacturing defects only and does not include damage caused by improper use. -
The warranty applies to products that are defective due to manufacturing faults or substandard components from the factory.
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Customers must retain the original packaging as proof of purchase from PISEN OFFICIAL in order to claim warranty service during the warranty period.
Exclusions from Warranty
The warranty does not cover the following cases:
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Products that are broken, cracked, bent, or have missing parts.
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Products that have been modified, altered, or repaired by anyone other than an authorized service center of the company.
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Products showing abnormal conditions not caused by normal use, such as water damage, burn marks, or similar damage.
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Products that have been stored improperly.
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Products that function normally but have paint peeling or cosmetic defects; such cases are not eligible for warranty claims.
Cleaning & Care Instructions
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Use the product in a well-ventilated area to reduce heat buildup.
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Avoid using the product in high-humidity environments or wet areas.
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Always check the condition of the product before use.
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When plugging in or unplugging the device, handle it carefully.

FAQ
Quick answers. Clear information.Products, compatibility, and warrantySupport you can rely on.
What is PISEN Tech?
PISEN Tech is a global mobile accessory brand known for high-quality charging solutions and smart accessories. With over 20 years of experience, PISEN focuses on safety, innovation, and reliable everyday performance.
Are PISEN products safe to use?
Yes. PISEN products are designed with multiple safety protections, including over-current, over-voltage, over-temperature, and short-circuit protection. Selected products also comply with international and local safety standards.
How can I contact customer support?
You can contact PISEN customer support through the official website or the authorized store where you purchased the product.
You may also reach us via the following channels:
- Phone: +66 84 004 1099
- Email: info@pisentech.co.th
- LINE Official Account: https://line.me/R/ti/p/@346zkaib
Our support team is happy to assist you.
What is the warranty period for PISEN products?
PISEN products are covered by a limited warranty of 1 to 2 years, depending on the product category.
A 1-year warranty applies to accessories such as cables, audio accessories, and batteries.
A 2-year warranty applies to power banks, wall chargers, and wireless chargers.
Warranty coverage is subject to terms and conditions and applies to manufacturing defects under normal use.
Screen protectors are not covered by warranty, as scratches and surface wear are considered normal wear and tear.
