After flying all weekend I must say I am impressed with this battery (ETX 900). My Odyssey PC 925 always worked well until recently with 4 years of use it started turning the prop a bit slower each time during start.
Your ETX 900 turned my engine and prop (IO-360, C/S) faster than I’ve ever seen during start. Because of that, warm starts don’t even bother me anymore because the engine always fires within 1-2 blade tracks. When you are in a 16 ship formation you can’t have all the other planes waiting for you to crank a hot engine.
Although a bit more expensive than the competition, the saying “you get what you pay for” is very appropriate in this case. My compliments on a great design.
Follow up testimonial to Aerobatic Airplane