SMC HCL-RS 7.4V 4000mAh 150C ULCG 5mm Hardcase Lipo Shorty Battery 40150-2S1P

HCL-RS 7.4V-4000mAh-150C LCG Shorty 5mm Inboard Hardcase. ROAR approved

Introducing the HCL-RS line of race packs (High Cycle Life - Race Series). These formulations are not the generic cells/packs you can get with different color stickers on them. These are recipes developed for us by an independent factory. While we have recently pushed mAh and C rates for applications like flight packs and speed run packs, the demands of racing are different. These new formulations hold better voltage, sag less under loads seen in off and on road racing by optimizing the IR and mAh per cubic centimeter of the cells. Scroll down the page to see a discharge graph.


True mAh +/- 5%: 4000mAh

Voltage: 7.4V

C rate: 150C

Size: 18.5mm x 47mm x 96mm Hardcase

Weight: 170gr

Wire size: 5mm inboard tubes with 2mm balance tube

Charge rate: 1C to 5C please note that a higher charge rate will put less mAh into the pack and will reduce cycle life