This 6-slot quick battery charger is designed for users who want fast, safe, and flexible charging for multiple rechargeable battery types. Featuring a USB-C input with QC/PD support, it can be powered through adapters, laptops, or even power banks while delivering up to 40 W. Each slot works independently, meaning you can charge different chemistries and sizes at the same time without affecting performance. The charger supports Li-Ion, LiHv, LiFe, NiMH, and NiZn chemistries, covering AAA, AA, and cylindrical cells from 10440 up to 26700. Instead of a built-in screen, it connects to a smartphone APP via Bluetooth, allowing real-time monitoring and configuration. Safety is ensured through over-temperature, over-charge, reverse-polarity, and short-circuit protection, paired with an active cooling micro-fan for stable operation. Compact and lightweight, it is ideal for household use, travel, DIY projects, flashlights, RC gear, and everyday battery charging needs.Note: Images for Referance only, batteries are not included in the actual product. Features: Six independent charging slots—no time-sharing. Works with Li-Ion, LiHv, LiFe, NiMH, and NiZn chemistries. USB-C input with QC/PD fast-charging compatibility (up to 40 W). Smartphone APP monitoring via Bluetooth. Charge current up to 4.0 A (vertical) / 2.0 A (horizontal). Built-in micro-fan for active cooling. Full safety suite: over-temp, over-charge, reverse polarity, overtime, short-circuit. Supported battery size: AAA, AA, 10440 to 26700 Package Includes: 1 x ISDT C4 Air Quick Battery Charger, 6 Slots USB C Household Charger with Bluetooth APP Connection Function1 x C-Type USB Cable
Specifications
| Input Power | Up to 40 W (USB-C). |
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| Charging Current | 0.1–4.0 A depending on slot orientation. |
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| Supported Battery Sizes | 10440–26700, AAA, AA. |
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| Supported Chemistries | Li-Ion, LiHv, LiFe, NiMH, NiZn. |
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| Operating Temperature | 0–40 °C. |
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| Item Type: | Fast Charger |
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| Model No. / Name: | C4 Air |
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| Input | USB-C, up to 40 W |
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| Supported Battery | AAA, AA, 10440–26700 |
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| Battery Type | Li-Ion, LiHv, LiFe, NiMH, NiZn |
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| Charge Current Range (A): | 0.1–2 A (horizontal), 0.1–4 A (vertical) |
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| Cooling Type | Built-in micro-fan |
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| Operating Temperature (°C): | 0–40 °C |
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| Operating Voltage Range | 5 ~ 12 V |
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| Length (mm): | 106 |
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| Width (mm): | 73 |
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| Weight (g): | 115 |
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| Shipping Weight | 0.17 kg |
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| Shipping Dimensions | 14 × 10 × 4 cm |
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