SMART-STOP Li-Po Battery Cut-Off Circuit
•read completely before installation or set-up•
The Smart-Stop monitors the Li-Po’s voltage & safely cuts off the ESC’s throttle output when the voltage drops below a safe level--6.25V for 2-Cell Smart-Stop (#5470), 9.375V for 3-Cell (#5472), & 12.5V for 4-Cell (#5471).
5000mah 10c = 2* 2500mah 20c (discharging current for both 5000mah10c and 2500mah 20c are 50a, no difference for your ESC. yet, 5000mah lasts twice the time of 2500mah)
price: 2500mah 20c = 2* 5000mah 10c
but of course, 5000mah 20c is far more better than 5000mah 10c, and the price, meanwhile will be far more expensive.