Key Features
- 2500mAh / 4150mWh High Capacity: Delivers consistent, high-energy output per cell with a rated cycle life of 1200 charges, providing long-term reliability and cost efficiency over repeated use.
- Constant 1.5V Output: Maintains a stable 1.5V nominal voltage throughout the discharge cycle, delivering consistent performance in devices designed for standard AA alkaline batteries.
- 2A Maximum Discharge Current: Supports up to 2A continuous discharge for reliable performance across a wide range of everyday and moderate-drain AA-powered applications.
- Built-In Protection with Multi-Status LED Indicator: Integrated PCB protection circuit with multi-status LED — 1Hz flash during charging, solid when complete, high flash with no battery, 10Hz high flash on short circuit, and blink pattern on low voltage detection.
- USB-Rechargeable via 5V Input: Charges via standard 5V input at 0.45A using a compatible XTAR 1.5V li-ion charger, with a charging temperature range of 0°C to 45°C and wide operating range of -20°C to 60°C.
Overview
The XTAR 1.5V AA 4150mWh is a protected rechargeable lithium-ion AA battery engineered to deliver stable, constant 1.5V output — matching the voltage profile of standard alkaline AA cells while offering the long-term economy of a rechargeable power source. Each cell provides 2500mAh / 4150mWh of capacity with a rated cycle life of 1200 charges, making it a practical and cost-effective replacement for disposable alkaline batteries across a wide range of everyday and moderate to high-drain devices. The integrated multi-status LED protection circuit provides clear charge monitoring at every stage — from active charging through to completion, low voltage detection, and short circuit protection. Charged via standard 5V USB input at 0.45A using a compatible XTAR 1.5V li-ion charger, the AA 4150mWh is designed for use with compatible XTAR chargers only for optimal safety and efficiency. This listing includes four batteries.
Applications / Uses
- Wireless gaming controllers and digital audio devices requiring stable 1.5V AA power over extended use periods
- Blink cameras, accelerated smoke detectors, and smart home security devices with sustained low-current draw
- Personal grooming devices, home medical equipment, and blood-pressure monitors requiring dependable everyday power
- Portable stereos, camping lanterns, and outdoor electronics benefiting from high-capacity rechargeable AA cells
- Any device designed for standard AA alkaline batteries where rechargeable performance and cost savings are desired
Specifications
| Brand: | XTAR |
| Model: | 1.5V AA 4150mWh |
| Battery Type: | AA Rechargeable Lithium-Ion |
| Nominal Capacity: | 2500mAh (4150mWh) |
| Nominal Voltage: | 1.5V |
| Voltage at Low Power: | 1.1V |
| Max Discharge Current: | 2A continuous |
| Charging Voltage: | 5V |
| Charging Current: | 0.45+/-0.05A |
| Cycle Life: | 1200 |
| Protected: | Yes (PCB) |
| Positive Terminal: | Button Top |
| LED Indicator: | Yes — 1Hz flash = charging / solid = complete / high flash = no battery / 10Hz = short circuit / blink x8 = low voltage |
| Operating Temperature: | -20°C to 60°C |
| Charging Temperature: | 0°C to 45°C |
| Storage Temperature: | -20°C to 50°C (best at 25+/-5°C) |
| Dimensions: | 14.3+/-0.3mm (D) x 50.3+/-0.5mm (H) |
| Net Weight: | 19.5g per cell |
| Pack Quantity: | 4 batteries |
| Data Specification Sheet: | View Datasheet |
⚠ Important Safety Warnings
Improper handling or misuse of this lithium-ion battery can result in FIRE, EXPLOSION, or THERMAL RUNAWAY, causing personal injury, property damage, or death. Users must read and follow all safety guidelines before purchase and use. Click here to review the full safety guidelines.
- Critical Warning: Never carry loose batteries in your pocket, purse, or bag. Loose batteries can come into contact with metal objects like keys or coins, causing a short circuit, which may result in severe burns, fire, or explosion. Always store or transport batteries in a protective case.
- Intended Use: This battery is designed for integration into protected battery packs with a Battery Management System (BMS) or Protection Circuit Board (PCB). It is not intended for standalone use or for e-cigarettes, vaporizers, or similar devices.
-
Thermal Runaway: A chain reaction where heat from a failing battery
causes further overheating, potentially leading to fire or explosion.
- Causes: Overcharging, short circuits, physical damage, or exposure to high temperatures.
- Prevention: Use a smart charger, avoid damage, and store batteries in a cool, dry place.
- Storage & Transport: Always store batteries in protective cases to prevent accidental contact with metal objects. Never store loose batteries in pockets, purses, bags, or near conductive materials.
- Inspection: Do not use if the PVC wrapper, terminal insulator, or casing is damaged, dented, leaking, or bulging. Continued use could result in failure, fire, or explosion.
- Charging: Use a smart charger specifically designed for lithium-ion batteries and ensure the charger's voltage matches the battery's specifications. Never overcharge, over-discharge, or leave unattended while charging.
-
Prohibited Activities:
- Do not expose the battery to extreme heat, fire, or liquids.
- Do not short circuit, puncture, crush, or modify the battery.
- Do not charge or discharge beyond the manufacturer’s voltage range.
- Do not dispose of in regular trash—always recycle at approved facilities.
- Emergency Response: If a cell shows signs of thermal runaway (e.g., smoke, swelling, hissing, or heat), stop use immediately and, if it can be done safely, move it to a non-flammable surface (e.g., concrete or sand) away from combustible materials. Lithium-ion cells burn as Class B fires — use an ABC / dry-chemical fire extinguisher, or douse with large amounts of water to cool the cell and prevent the fire from spreading. Do not rely on a small spray; thorough cooling is required, and cells can reignite from residual heat, so monitor the area afterward. (Class D extinguishers are intended for lithium-metal batteries, not lithium-ion.) For any fire beyond a single small cell, evacuate and call emergency services.
Disclaimer
18650Battery.com is not responsible for any damages, injuries, or claims arising from improper use, handling, or failure to follow these safety guidelines. Lithium-ion batteries require strict adherence to all safety protocols. It is the reseller's responsibility to ensure all safety warnings and product guidelines are effectively communicated to customers. Users and resellers assume full responsibility for the safe handling, usage, and distribution of this product.