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Home > News > Ten years of research and development! Debuting at the forefront with patented technology – BPI Better Power 1.5V constant voltage lithium battery, an alkaline battery replacement.

Ten years of research and development! Debuting at the forefront with patented technology – BPI Better Power 1.5V constant voltage lithium battery, an alkaline battery replacement.

By BetterPower August 20, 2025

At a time when battery technology is rapidly evolving, a product with both stable output and innovative DNA is poised to disrupt the industry. The BPI 1.5V constant-voltage lithium battery, with its decade of R&D expertise and patented technology, is redefining the standard for constant-voltage power supplies. It addresses the unpleasant user experience of unstable device functionality caused by reduced battery charge in the later stages of battery life, ensuring a consistent user experience. It also addresses the issue of unstable battery voltage in the later stages of chemical batteries due to low residual capacity.

The “technological seeds” planted ten years ago have grown into industry benchmarks

Back in 2016, BPI pioneered constant voltage battery research and development. From the patented concept for “a constant voltage battery” (Patent No.: ZL201610238908.5) to winning the China Patent Excellence Award in 2020, Bettery has spent a decade transforming this R&D blueprint into an industry-recognized technological achievement. This achievement is not only the honor of a patent certificate, but also a strong testament to its continued dedication to constant voltage technology. As early as a decade ago, BPI anchored its R&D direction on “stable output and long-lasting battery life” (resolving the issue of low battery voltage in the later stages of production, which leads to a poor customer experience and ensures a consistent user experience), laying a solid technical foundation for its 1.5V constant voltage lithium battery.

Patent matrix endorsement, technical strength is “visible”

From invention patent certificates to China Patent Excellence Awards, BPI has built a patent matrix for constant voltage batteries:

  • Breakthrough in underlying logic: The patented “constant voltage battery” overcomes the voltage fluctuation problem of traditional batteries, achieving stable constant voltage output and providing core technical support for 1.5V constant voltage lithium batteries. This solves the problem of unstable device functionality caused by low battery charge in the later stages of battery life, ensuring a consistent user experience. This solution addresses the problem of unstable battery voltage in the later stages of chemical battery life due to low residual capacity.
  • Industrialization verification: Patents are transformed into actual products, tested by the market, and the technical feasibility and reliability are verified, using the “R&D – implementation – iteration” closed loop to demonstrate hard power.

This patent “report card” is not only a microcosm of BPI ten years of research and development, but also the “technological moat” of the 1.5V constant-voltage lithium battery – every patent and every technological iteration is “adding weight” to product stability and endurance.

1.5V Constant Voltage Lithium Battery: The Results of Ten Years of Research and Development

Based on a rich patent portfolio, the BPI 1.5V constant voltage lithium battery offers three core advantages: It addresses the pain point of unstable battery voltage operation.

Stable Constant Voltage: Inheriting the patented technology, the output voltage is consistently stable, making it suitable for voltage-sensitive precision devices (such as smart wearables and medical instruments), eliminating the trouble of voltage drops and providing a consistent user experience.

Long-lasting Battery Life: Optimized battery structure and materials deliver higher energy density, far exceeding traditional batteries in battery life, and enabling longer battery life on a single charge.

Safety and Reliability: Safety features were incorporated into the patented R&D phase, with multiple protection mechanisms to address high temperatures, overcharging, and other issues, ensuring worry-free use.

Choosing BPI means choosing a decade of technological accumulation

From its patent development in 2016 to its product launch in 2025, Bettery has spent the past decade demonstrating its commitment to constant voltage technology. The 1.5V constant voltage lithium battery is more than just a product; it embodies BPI R&D strength and patent translation capabilities. Choosing it means choosing the dual guarantee of “a decade of technological advancement + the backing of a patent matrix.”

In the future, Bettery will continue to leverage its patents to further develop constant voltage battery technology, enabling more stable, long-lasting, and safe battery products to empower smart living!