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4X Racerstar RS20A 20A BLHELI_S OPTO 2-4S ESC Support Oneshot42 Multishot for FPV Racing <img alt="src=http://img.staticbg.com/images/oaupload/banggood/images/DC/EE/39539207-ae01-4a2f-83ee-9d9b55169b50.jpg"> <img alt="src=http://img.staticbg.com/images/oaupload/banggood/images/DC/EE/e70b941c-7d10-40da-be45-551d7f3ede75.jpg"> <img alt="src=http://img.staticbg.com/images/oaupload/banggood/images/DC/EE/8f638808-bf5d-43ad-b6c3-8e84c46f6af0.jpg"> <img alt="src=http://img.staticbg.com/images/oaupload/banggood/images/DC/EE/2f1ea521-bcf8-4f9e-8a34-6b8e373716d8.jpg"> <img alt="src=http://img.staticbg.com/images/oaupload/banggood/images/DC/EE/59d39679-15e8-47a5-88df-5a936a2aebf6.jpg"> <img alt="src=http://img.staticbg.com/images/oaupload/banggood/images/DC/EE/7f1db143-28a4-4abc-b730-a7e7dd5c27b0.jpg"> Specification: (<a href="http://files.banggood.com/2016/06/bl-s" 20a="" esc="" test="" table="" xlsx=""> Test Table</a>) Brand Name: Racerstar Item Name: 20A BLHELI_S  ESC Electronic Speed Controller Model: RS20A Con.Current:20A Peak Current(10s):25A Input Voltage: 2-4S BEC: No Programming : YES Firmware: Blheli_S Weight:7.9g Size(PCB):27*12mm Features: -With Blheli_s Firmware -Support Oneshot42 Multishot -Smaller size and lighter -Strong adaptive ability How to Flash the ESC?  Please click <a href="https://blhelisuite.wordpress.com/">here</a> -Rev 16.2 Fixed bug that prevented temperature protection; -Improved robustness to very high input signal rates; -Beeps can be turned off by programming beep strength to 1; -Throttle cal diffirence is checked to be above required minimum before storing. -Throttle ca, max is not stored untill successful min throttle cal. Package Included: 4 x Racerstar 20A ESCs

4X Racerstar RS20A 20A BLHELI_S OPTO 2-4S ESC Support Oneshot42 Multishot DShot for RC FPV Racing Dr