The ECO-X cells have proven themselves thousands of times and strike the perfect balance between durability, weight, and lifespan. The battery comes pre-soldered with the XT90-S connector system featuring anti-spark functionality. It is ideal for rugged everyday use. Suitable for all aircraft or marine models as well as in the R/C car sector. Connections: XT90-S connector with gold contacts and anti-spark feature, suitable for continuous loads up to 90 amps, XH balancer connector for safety when plugging in. The integrated anti-spark function in the XT90-S connector prevents sparks when connecting to the controller.

Internal chip for battery telemetry: The passive MTAG chip stores battery data such as type, number of cells, capacity, C-rate, or battery ID. These values can be read out with an external NFC sensor and transferred to the transmitter telemetry if needed. Additionally, the built-in MTAG chip allows for manual or automatic counting and storage of charge cycles. When using multiple identical batteries in series or parallel operation, more effective active battery management becomes possible. Note: It is up to the user whether they wish to utilize the MTAG function or not. The TopFuel battery can be used like any regular battery without MTAG.

Voltage Indicator Technology: The TopFuel battery is delivered with the proven Voltage Indicator technology. With the push of a button, the battery's charge status is displayed via four differently colored LEDs. The Voltage Indicator helps to accurately assess the battery's charge status at any time.

Factory optimized: The special manufacturing process, where the batteries are pressed during filling, makes these cells up to 10 percent thinner and more robust than comparable cells with the same capacity and load capacity.