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21 Years Battery Factory
Expert in iPhone
Original Ti-BMS
Ti-7037 and Ti-BQ27546 BMS iPhone batteries are the most reliable choices for iPhone Repair
Experience the features of Yule iPhone Battery, designed to provide safety, reliability, and enhanced performance for your repaired iPhone.
Certified Fuel Gauge for Battery Pack Integration
The BQ27546-G1 is a Li-Ion fuel gauge for single-cell battery packs, requiring minimal MCU development.
It uses the Impedance Track™ algorithm to report battery capacity, state-of-charge, run-time, voltage, and temperature.
It also detects internal shorts or disconnections and supports SHA1/HMAC authentication.
The compact 15-ball DSBGA package suits space-limited designs.
One-cell li-ion/li-polymer battery protection IC
The MM3511 series are protection ICs designed using a high-voltage CMOS process, providing overcharge, overdischarge, and overcurrent protection for rechargeable lithium-ion or lithium-polymer batteries.
They can detect and respond to conditions such as overcharge, overdischarge, discharge overcurrent, charge overcurrent, and short circuits in single-cell lithium batteries.
Each IC integrates four voltage detectors, a short-circuit detection circuit, reference voltage sources, an oscillator, a counter circuit, and logic control circuits.
The Ti 7037 and BQ27546 BMS protect a repaired iPhone from dangerous or extreme conditions
The battery flex features built-in electronic protection to prevent overheating and fire.
It monitors key parameters like voltage (up to 4.35 V) and current. During a short circuit in the battery management system (BMS) or motherboard, voltage drops while current rapidly increases, up to 2.2 A.
The BMS detects this abnormality and activates its protection mechanism, cutting off current flow at 2.8 A.
This safeguards both the battery and the phone’s internal components from potential damage.
The 7037 and 27546 I2C reading ensures all IOS compatibility, including the new IOS 26
The image below illustrates successful I2C communication, confirming that the CPU can read data from the battery.
This allows the phone to display charging status and battery percentage, indicating that the BMS is functioning properly.
The "W" and "R" labels represent I2C Write and Read operations, showing that the phone can send commands to the BMS and receive battery status information in return.
Summary: The Ti-7037 and Ti-BQ27546 Microcontrollers ensure the repaired iPhone has the same battery performance as a new iPhone
All our iPhone batteries use Texas Instruments ICs in their battery management systems (BMS), which adds significant benefits.
Understanding the quality and safety of the components and circuitry within the battery flex is crucial. It's essential to ensure these systems are designed to prevent hazardous incidents—such as fires or explosions—caused by abnormal conditions.
These may include physical impacts, punctures to battery cells, exposure to conductive liquids like salt water, or improper handling during replacement with metal tools.
Our Story
YULE has been the pioneer in manufacturing phone batteries since 2005, setting industry standards for quality and innovation. With a focus on incorporating top-tier components and ensuring compliance with international standards, YULE continues to redefine the capabilities of mobile devices.
DUORAYMI is our own iPhone battery brand for distributors since 2010.
Welcome to contact us for the battery OEM ODM and distribute cooperation.
Comprehensive quality certifications
In addition to conducting thorough tests and certifications for the product's functions, we have also fully obtained the highest quality certifications in the industry, including CE certification, MSDS certification, UN38.3 certification, as well as specific quality certifications for different regions and countries.
The brands of mobile phones covered by our batteries
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Why choose YULE
Yule specializes in serving customers in the Refurbished iPhone industry, more so than most other battery manufacturers. We have long-standing partnerships with iPhone repair centers in the China Free Trade Zone, and across Turkey, Romania, Poland, as well as leading refurbishment companies in France, the UK, Finland, and Germany.
This deep involvement gives Yule unique insight into the specific needs of iPhone repair businesses, making us more experienced and reliable than typical battery suppliers.
All our batteries are produced in our automated PACK factory, operated by a team of over 300 skilled technicians. With our efficient inventory and production systems, we ensure that all orders are shipped within 5 working days.
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