Quick Summary
This is a 7.4V 1500mAh rechargeable battery pack with an SM-4P plug, supplied as 2 batteries with 2 USB charging cables. It is described as compatible with the EC08 RC toy car model and also with off-road vehicle, climbing, drift racing and remote control boat use.
The key checks are the plug type, the stated voltage and capacity, the battery size, and whether the positive and negative wires match your equipment.
Key Details
| Detail | Verified information and buyer relevance |
|---|---|
| Voltage | 7.4V, so the battery needs to match the powered device’s required voltage. |
| Capacity | 1500mAh. Compare this with the runtime and power needs you expect from your device. |
| Battery type | Lithium-ion rechargeable battery. |
| Connector | SM-4P plug. Check that your device uses the same connector format. |
| Size | 69 x 36 x 18 mm. Confirm the battery compartment has room for the pack. |
| Weight | 81 g per battery. |
| Pack quantity | 2 batteries and 2 USB charging cables are included. |
| Compatible model | EC08 RC toy car model is named as compatible. Check exact fit before choosing an offer. |
What to Compare Before Buying
- Voltage: This pack is 7.4V, so the device must be designed for the same voltage.
- Connector: The plug is SM-4P, so the connection style must match.
- Size: The battery measures 69 x 36 x 18 mm, which matters if the compartment is tight.
- Pack contents: This set includes 2 batteries and 2 charging cables, which is useful if you need a pair rather than a single battery.
- Wire polarity: The black wire is negative and the red wire is positive, so the equipment wiring must match.
What Is Included
- 2 x 7.4V 1500mAh rechargeable batteries
- 2 x USB charging cables
Before You Decide
Check that your device uses a 7.4V battery, an SM-4P plug and matching wire polarity. Also confirm the 69 x 36 x 18 mm size works with your battery compartment, and make sure you want a 2-pack rather than a single battery.





