Hardcore Test! BB-2590 Battery Maintains Performance After 4 Days Underwater Soaking

In the ever-challenging and innovative landscape of technology, the exploration of battery performance limits never ceases. Recently, we conducted a truly "extreme" waterproof test on the BB-2590 battery—immersing it in a water tank for a full four days! The results, quite frankly, were nothing short of astonishing.




When our team carefully retrieved the BB-2590 battery from the water tank, all eyes were fixed on it. To our amazement, the battery still showed 3 bars of charge, with a stable voltage of 15.16V. These figures silently but powerfully demonstrated: this battery had defied the harsh underwater environment! After four days of continuous soaking, water erosion had failed to impact its core performance—charge and voltage remained in excellent condition, a testament to the battery’s exceptional waterproof capabilities.






The BB-2590’s ability to "stand its ground" underwater stems from its meticulously designed waterproof structure and high-quality materials. Our R&D team employed special sealing techniques and waterproof components to comprehensively protect the battery’s internal precision components. Whether facing extreme humidity or submerged conditions, it remains fully operational, ensuring stable power supply.

What’s more, the BB-2590 battery offers versatile capacity options, including a standard 7.5Ah model and a high-capacity 9.9Ah variant. This flexibility makes it ideal for a wide range of applications:

• Backpack radios: Provides reliable power for field communications, ensuring seamless information transmission in rugged environments.  
• Drones: Supports stable flight in complex weather and challenging terrains, enabling high-precision missions even in harsh conditions.

This hardcore 4-day water immersion test isn’t just an extreme validation of the BB-2590’s waterproof performance—it’s a powerful showcase of its robust engineering. Looking ahead, we remain committed to advancing battery technology, delivering more products that combine outstanding performance and reliability, and continuing to lead the charge in the power solutions industry.