Spektrum IC3 to 4mm Male Bullet Adapter, 6" 13 AWG Wires (SPMXCA315)
Spektrum IC3 to 4mm Male Bullet Adapter, 6" 13 AWG Wires (SPMXCA315)
This Spektrum adapter lets you connect IC3 batteries to devices with 4mm male bullet connectors. It uses 6-inch wires with 13 AWG gauge, a thicker wire that reduces voltage drop and handles higher currents reliably. The adapter is built with durable materials for secure electrical connections, and its compact length makes it easy to fit into tight RC setups.
What does this adapter do exactly?
It converts an IC3 battery connector (the one found on many Spektrum LiPo packs) into a pair of 4mm male bullet connectors. This means you can use your Spektrum IC3 batteries with older or custom devices that accept 4mm bullets, such as certain ESCs, chargers, or test equipment. The IC3 side is male, so it plugs directly into the battery's IC3 female port.
Specs at a glance
| Brand | Spektrum |
| Connector on adapter | IC3 (male) |
| Output | 4mm male bullets (two connectors) |
| Wire gauge | 13 AWG |
| Wire length | 6 inches (15.24 cm) |
| Cable type | Fiber optic (as listed by manufacturer) |
| Special feature | Fast charging (designed to support higher charge rates) |
| Model number | SPMXCA315 |
Why the wire gauge matters
13 AWG is a relatively thick wire. It can carry more current without overheating or losing voltage over the 6-inch run. That's important when you're pulling high amps from a large LiPo pack. The shorter length also keeps resistance low, which helps maintain consistent power delivery.
Frequently asked questions
Can I use this adapter with any IC3 battery?
Yes, it's designed to connect to any device with a standard IC3 female connector, which includes most Spektrum IC3 batteries. The IC3 plug on the adapter is male and fits into the battery's female port.
What devices have 4mm bullet connectors?
Many RC ESCs, brushless motors, and chargers use 4mm bullet connectors. This adapter lets you connect an IC3 battery to those devices. Always check that your device's bullet connectors are male (the adapter provides male bullets).
Is this adapter suitable for high-current applications?
The 13 AWG wire and 4mm bullets are commonly used in systems drawing 50-100A continuous, but actual limits depend on your setup and ambient conditions. The adapter is built for reliable connections, but it's always wise to monitor temperatures during heavy use.
Does the fiber optic cable type affect performance?
The manufacturer lists the cable type as fiber optic. In practice, this likely refers to the insulation material rather than the conductor itself. Fiber optic insulation can offer good heat resistance and flexibility, but it does not mean the wire is a fiber optic cable.