Lipo 6-S what C-rating for starting big blocks ??

[Tony Jacuzzi]

OK now I am just wondering what minimum C rating I should purchase for my Dynatron setup. Is the 25-50C rating too low do I need to go higher like the 35-70C. I was looking at buying these Turnigy Nano-techs likely in the 4500 or 5000 mah size. Thanks for the input.. Tony J

http://www.hobbyking.com/hobbyking/store/uh_listCategoriesAndProducts.asp?idCategory=378&LiPoConfig=6

 

[bmazor]

This battery cheaper and more than enough DYNATRON 100V at 24 Volts.

The formula is:

Capaciy of battery (Ah) * C = current A you need. For example 4Ah (4000mAh) 25C battery - 4*25=100

http://www.hobbyking.com/hobbyking/store/%5F%5F11937%5F%5FTurnigy%5Fnano%5Ftech%5F5000mah%5F6S%5F25%5F50C%5FLipo%5FPack.html

Better to get more Ah for longer battery run.

Boris

 

[lohring]

When I first used old lipo packs on my starter (2008) I ran two 4S 5000 mah packs in parallel. Even with others borrowing the starter for their boats, the packs were only down 10% at the end of the day. I now only use one 5000 mah pack. Starters are lots easier on batteries than electric boats.

Lohring Miller

 

[Andy Brown]

I got a 45c. Looks like way more than I need. Will a Dynatron ever pull 100 apms? I've seen many lipo set up on starters here at the Florida races this year and most are using 25c.

I got the 5s 45c 5000 Zippy for our 12V Sulllivan. The Zippy seemed to have the best overall user rating on the Hobbyking site.

 

[Bart Drieghe]

I'm using a turnigy 6S 25C 5000 Mah . I can start an SG 35 and CMB 15 without any issues for a while .

B

 

[John Beardslee]

I got a 45c. Looks like way more than I need. Will a Dynatron ever pull 100 apms? I've seen many lipo set up on starters here at the Florida races this year and most are using 25c.

I got the 5s 45c 5000 Zippy for our 12V Sulllivan. The Zippy seemed to have the best overall user rating on the Hobbyking site.

Hi Andy,

Does the 12v on 18.5v crank the big blocks ok? ie:101's Or were bumbing with 12v on 24v on the big blocks?

Thanks, John

 

[Andy Brown]

I got a 45c. Looks like way more than I need. Will a Dynatron ever pull 100 apms? I've seen many lipo set up on starters here at the Florida races this year and most are using 25c.

I got the 5s 45c 5000 Zippy for our 12V Sulllivan. The Zippy seemed to have the best overall user rating on the Hobbyking site.

Hi Andy,

Does the 12v on 18.5v crank the big blocks ok? ie:101's Or were bumbing with 12v on 24v on the big blocks?

Thanks, John

John, I've been using this 12V Sullivan on EVERYTHING for the last 25 years powered by a pair of 7 amp gelcells wired for 24V. Now that I have hooked it to the Lipo I'd dare say it has more punch now.

 

[Joern Markset]

I`ve also had the same Dynatron for 20 years, running on 24 volt lead acid batteries. Cranking 35 cc`s is not a problem at all.

So, if you have 5S or 6S you shouldn`t have any problem at all cranking a 101.

25C (40-50C burst) will give you more power than you ever need. Keep in mind that you spin the Dynatron just a few seconds each time.