Tuesday, June 6, 2017

Re: [Electric Boats] Feasible to change to 6v golf cart batteries?

 


I wouldn't be the expert here, but my first guess would be to connect each pair of 6 volt batteries to the charging leads, which would essentially be what you are doing with the 12v batteries today.

Cheers,

j

On 06/06/2017 09:58 AM, Michael Kirkwood consultativeskills@gmail.com [electricboats] wrote:
 
Jeff,
Thanks for your response.  The advantage of the parallel configuration obviously is the much larger amp hour capacity.
 Yes, I'd like to keep the same chargers. However, they are currently configured to connect to 3 batteries [12v] each.  What's your thought s on how I would take those same set of 3 charging cables on each charger and connect to the 6 six-volt batteries in the two groups?

MKirkwood

On Tue, Jun 6, 2017 at 9:40 AM, Jeff LaCoursiere jeff@jeff.net [electricboats] <electricboats@yahoogroups.com> wrote:
 


That isn't correct - 12 x 6v in series would be 72v.  The OP was originally correct - 2 sets of 6 x 6v, the two sets in parallel.

I'll throw out a guess that you could then keep your original chargers, and use them in the same manner - just charge each 36v bank just like before.

j

On 06/06/2017 07:33 AM, Daniel Michaels nov32394@yahoo.com [electricboats] wrote:
 

They would all be in a series. One battery charger. Same as a golf cart.


 

I recently bought a 2002 Canadian electric boat Fantail Launch.  It has 36v system, with two groups of three 12v batteries in series, then the two groups linked in parallel.  There are two ProTournament series 3-step marine battery chargers, each dedicated to one of the 3-battery groups.

I fear the current six 12 v Interstate batteries are approaching end of life, and I'm interested in changing over to the 6v golf cart batteries with the higher amp hours capacity.

I need a 36 volt system for the current motor.  So, would I be linking 12 of the 6v batteries: two series of 6 in parallel?  Would I need two more charges to charge the added 6 batteries?

Thanks, and Regards.
M Kirkwood



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