• Smartphones: iPhone, Samsung, Huawei, Xiaomi, OPPO, vivo, Infinix, itel, Tecno, Alcatel, Motorola, Nokia, LG, Sony, and more

• Other Devices: Tablets, smartwatches, and laptop batteries

Our products comply with international safety and performance standards, featuring high energy density, long cycle life, and multi-layer protection circuits. One of our key high-capacity polymer battery models is the Li536587HTT—engineered specifically for rugged, outdoor, and long-endurance devices that demand exceptional power reliability.

For partnership inquiries or sample requests, please contact us:
🌐 Website: www.longhehui.com
📱 WhatsApp: +86 153 2372 7405

Devices like the OSCAL TANK 1 exemplify the kind of demanding applications our Li536587HTT-class batteries are designed to support. Built for adventurers, field engineers, and professionals operating in extreme environments, the TANK 1 integrates an industry-leading 20,000mAh ExploVolt battery—a feat made possible through advanced cell engineering and thermal management systems aligned with solutions offered by manufacturers like Longhehui.

• Delivers 3–5 days of heavy usage or up to 1,080 hours on standby

• Supports 55W wired fast charging (via USB-C and dedicated charging dock), fully charged in ~3.7 hours

• Features 5W OTG reverse charging to power earbuds, flashlights, or other devices in emergencies

Note: While OSCAL does not publicly disclose the exact battery model number, the physical dimensions (~90mm × 65mm × 8mm) and 20,000mAh capacity of the TANK 1’s battery closely align with custom high-energy cells such as Longhehui’s Li536587HTT, commonly used in rugged and extended-endurance device designs.

🛡️ Additional Key Features:

• IP68 / IP69K waterproof rating + MIL-STD-810H military-grade durability
  (Submersible up to 2 meters for 30 minutes; withstands 1.5m drops, 10m free-fall, and 1,200kg pressure)

• Dual-display design: 6.78" FHD+ 120Hz main screen + 2.01" rear smart display

• Camera system: 64MP main + 20MP night vision lens; 50MP front camera; 4K@30fps video

• Performance: MediaTek Dimensity 7050, up to 16GB RAM + 512GB storage (expandable to 2TB via microSD)

• Software: DokeOS 4.2 based on Android 15, with 3 years of OS updates and AI-powered features (AI imaging, voice assistant, content generation)

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If you’re developing rugged, outdoor, or ultra-long-battery-life devices and need a trusted battery partner, Longhehui offers both standard and customized high-capacity solutions—including models like Li536587HTT—with full OEM/ODM support, rigorous quality control, and global logistics.

Contact us today via www.longhehui.com or WhatsApp (+86 153 2372 7405) for datasheets, certifications, or collaboration opportunities!