Ostation 1.5V AA Rechargeable Lithium Batteries, Smart BMS Li-ion 4 Pack, 3150mWh/2100mAh, Fast Charging 2/2 Pro, Constant Voltage for Cameras, Controllers, Flashlights

Features

• CES Award-Winning Smart Charging: The worlds first AA rechargeable battery with built-in BMS. A smart chip inside communicates with Ostation 2 series chargers to dynamically regulate current and temperature, delivering safer, more efficient Li-ion charging (Note: BMS means Battery Management System. Chargers sold separately.)
• Advanced Protection, Inside & Out: 5 layers of protection guard against overheating, overcurrent, overcharge, over-discharge, and short circuits. Dual-layer encapsulation resists everyday drops, while gold-plated copper positive contacts reduce resistance to prevent overheating and power loss. Multiple Ostation 1.5V Li-ion batteries deliver stable performance, even when used together in the same device
• Batteries Ready Faster, Lasts Longer: Rechargeable with any 1.5V Li-ion battery charger. When used with Ostation 2 Series chargers, these batteries fully charge in just 2.5 hoursfaster than most other Li-ion batteries on other chargers. Each battery supports 1,000+ recharge cycles, saving money and reducing waste
• Longer Runtime for High-Drain Devices: With 3150mWh (2100mAh) capacity, these lithium batteries deliver extended power for demanding devices like camera flashes, gaming controllers, flashlights, and microphones, reducing the hassle of frequent battery swaps
• Constant 1.5V Output: Unlike 1.2V NiMH batteries, these lithium AA batteries maintain a steady 1.5V output, keeping voltage-sensitive devices such as security cameras and doorbell cameras running at peak performancean ideal replacement for disposables
• Reliable Power in Extreme Temperatures: These Li-ion batteries operate reliably from -4F to 140F (-20C to 60C), perfect for outdoor devices including security cameras, trail cameras, GPS units, and other equipment exposed to harsh conditions.

Description

In high-mode flashlight testing, alkaline and Ni-MH batteries gradually lose brightness. Ostation 1.5V Li-ion maintains a stable 1.5V output throughout the test, delivering reliable, consistent performance when it matters most. Under identical lab conditions, Ostation 1.5V Li-ion delivers 489 full-power flash shots, outperforming Ni-MH (421) and alkaline (408). That means more shots per charge, fewer interruptions, and longer-lasting power for high-drain devices. Ostation 2 Pro Pack Ostation 2 Pack Ostation 2 Pro Ostation 2 Ostation AAA Battery Ostation AA Battery(8pcs) Ostation AA Battery(4pcs) Visit the Store Visit the Store Visit the Store Visit the Store Ostation is an independent charging brand under the Olight Group, which has been trusted by millions since 2007 for high-performance illumination tools. Inheriting Olight’s spirit of innovation, it pushes the boundaries of household battery management. By combining smart engineering, intuitive systems, and user-centric design, Ostation makes charging effortless and batteries smarter, with a vision to make sustainable energy an everyday choice.

Number of Batteries: 4 AA batteries required. (included)

Brand: Ostation

Battery Cell Composition: Lithium Ion

Battery Capacity: 2100 Milliamp Hours

Recommended Uses For Product: Indoor/Outdoor

Number of Batteries: 4 AA batteries required. (included)

Brand: Ostation

Model Number: Ecolast 3150mWh Li-ion AA 4 pcs/pack

Model Name: Ecolast 3150mWh Li-ion AA 4 pcs/pack

Manufacturer: Ostation

Battery Capacity: 2100 Milliamp Hours

Voltage: 1.5 Volts

Reusability: Rechargeable

Unit Count: 4.0 Count

Battery Weight: 40 Grams

Antenna Location: Indoor/Outdoor

Battery Cell Type: Lithium Ion