2450mAh Rechargeable Double A Batteries 1200+ Cycles Lithium Aa Batteries 5.5V
2450mAh Lithium Ion Cylindrical Double AA 1.5V Battery Pack with True Capacity Power Source
The XTAR AA 1.5V USB-C Rechargeable Li-ion Battery offers industry-leading 4100mWh energy (2450mAh) — 50% more than regular NiMH batteries. With 1.5V 2A constant power and low-voltage detection, it ensures stable performance for devices like game controllers, trail cameras, and smart locks. The built-in USB-C port enables fast charging in just 2.7 hours. Lightweight at only 20.5g and designed for over 1200 cycles, it's eco-friendly and cost-efficient. Advanced safety features prevent overcharge, overheating, and short circuits.
- High Capacity: 4100mAh AA battery provides long-lasting power for your devices
- Fast Charging: Supports quick charging via USB-C cable for efficient battery top-up
- Wide Temperature Range: Operates efficiently between -20°C to 50°C for versatile use
- Rechargeable Design: Easy to recharge multiple times for cost-effective use
- Compact Size: Small and portable, perfect for travel or everyday carry
| Model | AA1.5V4100USB-CLi-ionBattery |
| Nominal Energy | 4100mWh |
| Nominal Capacity | 2450mAh |
| Nominal Voltage | 1.5V |
| Max Continuous Discharge Current | 2A |
| Standard Charging Voltage | 5V |
| Standard Charging Current | 0.45±0.05A |
| Operating Temperature | -20°C to 50°C |
| Storage Temperature | -20°C to 50°C (Best at 25±5°C) |
| Cycles | 1200+ |
| Protected | Yes |
| Positive Terminal | Button Top |
| Dimensions (mm) | Φ14.3±0.3 x H50.3±0.5 |
| Net Weight (g) | 20.5 |
Works in a variety of devices. Better efficiency and cost savings make it the ultimate replacement for disposable and Ni-MH AA batteries.

Established in 2006, XTAR is a leading provider of high-quality lithium-ion batteries, smart chargers, and LED flashlights. Based in Shenzhen, we integrate R&D, production, and sales to deliver innovative power solutions. With over 20 years of expertise, XTAR is your trusted partner for reliable energy products, offering customized solutions for OEM and wholesale clients.
- 2005: Developed PK keychain flashlight with superior batteries and LEDs for brighter output and longer runtime
- 2006: Introduced industry's first 16340 and 18650 lithium-ion batteries with protection circuits
- 2009: Pioneered three-stage charging technology for lithium batteries (Patent No.: 201720828840.6)
- 2011: Launched WP2II charger with 0V activation & USB output
- 2013: Released PANZER XP4, first charger intelligently adapting to lithium-ion and nickel-metal hydride batteries
- 2017: Launched Over 4 Slim, market's first 4.1A*2 fast charger with internal resistance/temperature detection
- 2020: Launched next-gen 1.5V rechargeable AA lithium batteries
- 2024: Expanded 1.5V AA/AAA lithium battery line with Constant Voltage + Linear series
- 2025: Joined U.S. ATA & SHOT Show; launched world-first touch battery power check technology
We operate our own factory with efficient production processes ensuring precise production cycles. Manufacturing under our original brand guarantees product consistency and provides convenient maintenance and after-sales service. XTAR integrates the brand values of safety, reliability, and innovation into every product.



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