Universal USB Charger Single Slots 3.7V Battery Charger For Rechargeable Lithium Li-ion 18650 AA AAA Battery Charging Adapters
Intelligent IC control, the built-in reference voltage to ensure full battery charge (battery full charge rate ≥99%), while ensuring safe use. Automatically recognize the battery polarity, and it can be charged both positively and negatively to ensure safe use.
Stable voltage output when no-load, the voltage is more accurate and stable, accurately charging and protecting the battery, ensuring safe use. When there is no battery in the charger, it lights up green, when it is loaded, the red light flashes, and it lights up green when it is full to ensure that the battery is fully charged and not overcharged and safe to use.
Product Features:
- Charging indication: red light for charging, green light for full power
- Made of fireproof board and flame-retardant plastic, safe and durable. Small and lightweight, plug and play, simple to use.
- Reliable overheat, overcurrent, overcharge, and over-discharge protection.
- With LED indicator, red light on when charging, green light on when fully charged.
- Application: Suitable for charging products that use a single 3.7V lithium battery. The main products are digital home appliances, beauty care equipment, small fans, flashlights, intelligent thermometers, and other related products supporting battery charging.
Specification:
- Input voltage: DC 5V 1A
- Output voltage: DC 4.2V 1000mA
- Full voltage: DC 4.17-4.2V
- Features: fast charging, overcharge protection
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