Quick Summary
The Tosiicop 7.4V USB battery charger is a three-pack of chargers with USB-to-SM-4P connectors. Each charger has two independent charging channels rated at 500mA per channel. Check the battery’s chemistry, voltage, connector and capacity before use.
Key Details
| Detail | Product information and buyer relevance |
|---|---|
| Pack quantity | Three replacement chargers are listed in the package contents. |
| Input | 5V, 2A through USB. The description lists a phone, power bank, computer or other USB port as a possible power source. |
| Output | 7.4V, with two independent 500mA charging channels and a stated total of 1,000mA. |
| Connector | USB to SM-4P. The battery must have the matching SM-4P plug. |
| Battery capacity range | More than 500mAh and less than 3,000mAh, as stated in the product description. |
| Weight | 22g per charger, according to the description. |
Key Features Explained
The two independent channels are each rated at 500mA. The description gives a combined output of 1,000mA; check that this charging arrangement suits the battery or batteries you intend to connect.
The indicator lights are described as green when no battery is connected, red while charging and green when charging is complete. The charger also lists circuit protection against overvoltage, overload, overheating and overcharging. These stated features do not replace checking battery compatibility or following the battery and charger instructions.
What to Compare Before Buying
- Battery chemistry: Confirm the chemistry supported by the charger and your battery before connecting it.
- Voltage and connector: The stated match is 7.4V and an SM-4P plug. Do not assume a different plug or voltage is compatible.
- Capacity: The description specifies batteries above 500mAh and below 3,000mAh. Check the battery label against this range.
- USB input: Check that your USB power source provides the stated 5V, 2A input.
What Is Included
The listed package contains three 7.4V replacement charger cords. No other included items are specified.
Before You Decide
Confirm the battery chemistry, 7.4V rating, SM-4P connector and capacity range. Also check that the available USB power source matches the stated input.









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