Greetings from St Louis,
> I just purchased and installed an ETX 900 in my Vans RV-4. I have an IO-360 engine with a constant speed prop so I need some good cranking amps. Due to weight and balance considerations the battery is mounted just behind the back seat in the baggage compartment. The previous battery was an Odyssey PC925 coming in at a whopping 28 lbs!
> By switching to the ETX 900 I instantly gained about 23 pounds which allowed me to install a 5 gallon smoke system in the same area. The battery turns the prop ridiculously fast, I have never seen it move so fast on a start before.