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I take my 40 on the boat and I have a 150 on a service truck for my t800 kenworth's they work well. I have not used the 40 on the boat but I did trials on my 3.5 ecoboost and v8 mustang. The 150 works on my kenworth but you not a lot of cranks.
@Chip F. .....many thanks for the advice and link!!!!! Just found a Noco GB70 on sale! A BEAST - yet very small and portable.....it will definitely allow me to enjoy the boat stereo on a single battery boat (2020 SX195) and be there to get us off the anchor if I drop the batteries below start voltage. Once again the advice on this forum is priceless.
We have a GB40 like in the pic above and it will start a V6 easily, and a V8 slowly. Bought it as a backup unit on sale and keep it in the truck for the winter, and in the boat for the summer. I've used it several times with friends and co-workers to start their vehicles and they all say the same thing - "that tiny thing won't do s#!t!" - and then it does and they go "hmmm". First test was my wife's V6 3.8l engine had a completely flat battery (it was defective) and I had to use the safety over-ride to boost, and it cranked the engine easily. After that I was sold.
@212s ....when I got to the store there were no GB70s left. The salesperson said he had a GB40 and thought I'd love it. He made the same comments as you. So I bought the GB40. Bonus it is a lot smaller than the GB70.We have a GB40 like in the pic above and it will start a V6 easily, and a V8 slowly. Bought it as a backup unit on sale and keep it in the truck for the winter, and in the boat for the summer. I've used it several times with friends and co-workers to start their vehicles and they all say the same thing - "that tiny thing won't do s#!t!" - and then it does and they go "hmmm". First test was my wife's V6 3.8l engine had a completely flat battery (it was defective) and I had to use the safety over-ride to boost, and it cranked the engine easily. After that I was sold.
It also works great to recharge a cell phone, power a 12v device, etc. Never had to try it on a 4-cyl Yamaha boat engine, but I'm confident it would turn over these 1.8l engines without any effort. Very impressed with them. Just like American Express, I don't leave home without it.
Yup that's why I chose the 40, it's nice and small, yet has lots of starting power. It'll be on the boat all summer.
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