XTAR MX4 Universal Battery Charger

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The XTAR MX4 is a versatile four-bay smart charger designed to handle a wide range of rechargeable battery types, including 1.5V lithium-ion AA/AAA, 3.7V Li-ion, 3.2V LiFePO4, and 1.2V Ni-MH cells. It features automatic chemistry detection and USB-C input, making it a convenient all-in-one solution for households and enthusiasts with diverse battery-powered devices. Overall, it offers a solid blend of compatibility, safety features, and modern connectivity at a competitive price point.
Key Features & Specs
| Compatibility | Supports 1.5V Li-ion, 3.7V Li-ion, 3.2V LiFePO4, and 1.2V Ni-MH rechargeable batteries in AA and AAA sizes |
|---|---|
| Auto-Detect | Automatically identifies battery chemistry and applies the appropriate charging profile for each slot independently |
| Power Input | USB-C input for modern, widely available charging cables and compatibility with standard power adapters |
| Bay Count | Four independent charging bays allowing simultaneous charging of mixed battery types |
| Safety | Built-in overcharge, short-circuit, and reverse-polarity protection to safeguard both batteries and the charger |
| Indicators | LED charge status indicators on each bay provide clear visual feedback on charging progress |
| Portability | Compact and lightweight form factor suited for home use, travel, or field carry with flashlight and camera gear |
Best for: Flashlight enthusiasts, photographers, and everyday users who rely on multiple rechargeable battery formats and want a single, reliable smart charger that handles them all safely.