XTAR AA 3960 1.5V 2500mAh Li-ion rechargeable battery - Pack of 4

These 2026 XTAR AA 3960 1.5V 2500mAh lithium-ion rechargeable batteries feature a built-in voltage regulator that maintains a steady 1.5V output throughout most of the discharge cycle, ensuring reliable performance in devices sensitive to voltage fluctuations. A touch-activated power indicator allows you to quickly check the remaining charge at any time. Each battery provides approximately 2500mAh capacity and can be fully recharged in about 2.5 hours using a compatible XTAR charger, with a smart LED indicator to clearly display charging status.

The cell includes an intelligent safety chip offering over-charge, over-discharge, short-circuit, and leak protection, and a low-voltage indicator that gently steps down to around 1.1 V, allowing devices to signal low battery before shutdown.

Key Features

• Touch-Activated Power Display: Simply touch the positive terminal to instantly check the remaining battery charge with the built-in LED indicator.
• Constant 1.5V output until near depletion.
• High Capacity & Stable Output: 2500mAh capacity with constant 1.5V output and up to 3A discharge current for demanding devices.
• Fast Charging: Fully recharges in approximately 2.5 hours with a compatible XTAR chargers.
• Advanced Safety Protection: Built-in protection guards against overcharge, over-discharge, over-voltage, and short circuits.
• Long Cycle Life: Rated for 1500+ recharge cycles to help reduce waste and save money.
• Wide Temperature Performance: Operates reliably from -20°C to 60°C, suitable for both indoor and outdoor use.

Specifications

• Chemistry: Li-ion with integrated protection circuit
• Nominal Voltage: Provides a regulated 1.5 V output until near depletion, unlike NiMH cells where voltage drops continuously.
• Operation: When battery is near depleted, the voltage will step down to 1.1V letting devices indicate low power in advance before cutoff.
• Capacity: 2500 mAh
• Cycle Life: ≈ 1500 cycles
• Maximum Continuous Discharge: 3 A
• Charging Voltage / Current: 5 V / 0.45 ± 0.05 A
• LED Indicator: Yes (charging status)
• Operating Temperature: –20 °C to 60 °C
• Charging Temperature: 0 °C to 45 °C
• Storage Temperature: –20 °C to 50 °C (recommended: 25 ± 5 °C)
• Dimension: AA (Ø14.3 ± 0.3 mm × 50.3 ± 0.5 mm)
• Weight: ≈ 20 g
• Positive Terminal: Button top

Note:These batteries must be charged with chargers specifically designed for 1.5V lithium-ion cells (e.g., XTAR VX4, XTAR L4). Do not use standard NiMH or 3.7V Li-ion chargers, as this may damage the cells. For compatible chargers, click HERE.