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Charger amps
02-22-2008, 12:50
Post: #1
Charger amps
Looking to change out my original chargers with something modern...how
many amps are really needed? Is there really a huge benefit of having
two 55's over one 75? At what point is it overkill?

Thanks
Scott Forman
86 PT38
Memphis
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02-22-2008, 13:29
Post: #2
Charger amps
Scott,
If the 75amp charger is a Smart Charger (3 stage), that will work just fine.

The benefit of two chargers is if one fails the other is there to do the job. I opted for two chargers in case one fails while I'm dry camping. When out dry camping I plug in the second charger to get the batteries up to full charge sooner. This arrangement has been working for 3 year and no problems so far.


On Fri, Feb 22, 2008 at 4:50 PM, Scott Forman <"sforman@renasant.com"> wrote:


Looking to change out my original chargers with something modern...how

many amps are really needed? Is there really a huge benefit of having

two 55's over one 75? At what point is it overkill?



Thanks

Scott Forman

86 PT38

Memphis






--
Curt Sprenger
1987 PT38 8V92 "MacAttack Racing"
Anaheim Hills, CA
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02-22-2008, 13:40
Post: #3
Charger amps
How much faster would 110a (two 55's) be over a 75?

I don't dry camp a ton, but if I am doing the change-out, I want to
do it right

Scott

--- In WanderlodgeForum@yahoogroups.com, "Curt Sprenger"
wrote:
>
> Scott,
> If the 75amp charger is a Smart Charger (3 stage), that will work
just fine.
>
>
> The benefit of two chargers is if one fails the other is there to
do the
> job. I opted for two chargers in case one fails while I'm dry
camping. When
> out dry camping I plug in the second charger to get the batteries
up to full
> charge sooner. This arrangement has been working for 3 year and no
problems
> so far.
>
> On Fri, Feb 22, 2008 at 4:50 PM, Scott Forman <sforman@...> wrote:
>
> > Looking to change out my original chargers with something
modern...how
> > many amps are really needed? Is there really a huge benefit of
having
> > two 55's over one 75? At what point is it overkill?
> >
> > Thanks
> > Scott Forman
> > 86 PT38
> > Memphis
> >
> >
> >
>
>
>
> --
> Curt Sprenger
> 1987 PT38 8V92 "MacAttack Racing"
> Anaheim Hills, CA
>
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02-22-2008, 14:11
Post: #4
Charger amps
Scott, someone at Q said you need no more than 40% of amphour
storage. So if you have 6 T105's with 225ah@6v you have 675ah@12v
X .4 or 270amp worth of charging amps max. ????? The larger you
charg em the less runtime you need with the Genset

I understand that when you have several "SmartCharge" iota chargers
working the same bank you need to link them together with a
controller for twice the amps???? I guess there would be an issue
with mixingup brand of chargers??

The po supplied upgrade chargers in my bus. 2 Yellow Xantrex
trueCharge 40's. They also need modification to work together. Each
output is fused for no more than 40 amps and a big batterybank's
demand trips/resets the internal fuse often. Xantrec tech advised
hooking 2 of the three outputs to the big wire BlueBird supplied
back to the Battery Bank.

In searching for new larger chargers I come to the conclusion that
Xantrex Freedom458 Remanufactured InverterChargers are the way to go.
One 3000watt or two 2000watt is my plan. LucasW gave the
inverter/charger upgrade advice from day one.

I am not convinced that there is no need for truesine wave 120V
output. My question not answered was one Pete brought up about the
possibility of truesine being cleaner burning thus more efficient to
run????????

GregoryO'Connor
94ptRomolandCa



--- In WanderlodgeForum@yahoogroups.com, "Scott Forman"
<sforman@...> wrote:
>
> Looking to change out my original chargers with something
modern...how
> many amps are really needed? Is there really a huge benefit of
having
> two 55's over one 75? At what point is it overkill?
>
> Thanks
> Scott Forman
> 86 PT38
> Memphis
>
Quote this message in a reply
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