Battery box

[Tubs]

When I’m at the lake, weather permitting, I’ll be out 2 to 4 hrs. a day. Sometimes longer. 2 years ago I brought a 1928 Speedster. Wide open is around 4000 RPM. Ruddertwins don’t spin that fast because the gas tank restricts the movement of the timer. I had one, 5 year old Power Sonic battery like the one  you posted a picture of, and a new one. I decided to see how long the old one would last as I had the new one as back up. The old one lasted 6 days. At just 2 hours a day that would have been 12 hours running on a 5 year old, 4.5 amp, PS battery. When the black ones pictured in my box were 3 years old, after an hour running, the motor would started missing. PS batteries cost more but are well worth it. This is my experience. 

 

A "Boathouse Repair" is one thats done without having tools or the skills to do it properly.

[Waunnaboat]

You must have had better luck than I had.  I bought the Power Sonic 4.5 amp/hr battery you speak of, but I was only able to get under an hour of total run time.  I will try to recharge it to see how long it lasts, but I also bought 2, 10 amp/hour batteries and will see weather or not the higher amp/hr black batteries last longer than the 4.5 amp/hr Power Sonic.

"Outboards seem to multiply exponentially..........I find that for every finished project, there are two more waiting to be completed."

[Tubs]

Even the black ones lasted all day for me when they were new. I suspect you got a bad one but your expense trumps some guy on the internet.

A "Boathouse Repair" is one thats done without having tools or the skills to do it properly.

[Author]

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