Radiolink Cool 9030 ESC 90A Brushed (2-4S) Waterproof with Built-in BEC 3A 5.5V/7.5V Compatible with 1/10 RC Truck Crawler Tank Car Bait Boat Twin Engine Models (XT60 Plug)

Waterproof and dustproof. 90A@18V constant output current, built-in BEC output voltage selectable, 3A@5.5V/3A@7.5V, stable high efficiency electronic switch. Fits into the enclosed boat body with low self-heating. Linear smooth control is perfect for RC crawlers, drift cars, and monster trucks, both in forward and reverse directions. 4 ESC modes: boat mode, training mode, racing mode, crawler mode. Easy to install through jumper cap. Multiple protection: low voltage cut-off protection. Battery overheat protection / over input voltage protection / etc. Compatible with 2S-4S (6-18V) lithium battery or 5-12 (6-16.8V) cell NiMH battery. Works with brush motor 380/540/550.