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Old 16-09-2012, 01:57   #76
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Re: Have to Upgrade My Battery Bank - Acid or Lithium ?

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Originally Posted by T1 Terry View Post
An N249T was up around those figures but the E249T checks out on the Australian standards website as 387kWhr/yr
OK thanks for that Terry and my apologies it looks like 387 is the correct figure,
Which translates to about 85AHrs a day. With inverter losses say 93AHrs a day.
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Old 16-09-2012, 06:34   #77
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Re: Have to Upgrade My Battery Bank - Acid or Lithium ?

1 invest in ref rig extra insulation - very cost effective. (not just foam but anti - IR foil etc)
2 try sterling electronics in the uk, they have some very smart charging products and they and their agents can be very helpful
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Old 18-09-2012, 02:25   #78
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Re: Have to Upgrade My Battery Bank - Acid or Lithium ?

Great link here.

Someone who has done a conversion well illustrated.

Lithium Batteries

Cheers
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Old 14-06-2013, 19:30   #79
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Re: Have to Upgrade My Battery Bank - Acid or Lithium ?

Here is the latest update with changes made this spring.

I have the same refrigeration units, drawing 13 amps at 120V (this is the draw assuming they are on 100% of the time which they are not). Plus two 120v chargers that are charging each thruster bank each drawing 5 amps at 120v.

I have also reduced the temp on the freezer to 20 degrees which also makes a difference on draw.

I now have the two sterling regulator/chargers from each engine charging my house batteries which are 5 lifeline 8D AGM batteries, 255 ah each for a total of 1275 ah bank.

I have changed my inverter/charger to a Mastervolt 4000 watt and had shunts installed and two masterview screens.

I was running on inverter all day on Thursday, temperature 71 degrees, with 5 hours at dock, engines not running, and 4 hours running at only 1200 rpm.

After 9 hours on inverter, my batteries still had 67% charge. Yeah!, finally, problem solved...

Thanks for the help and suggestions.
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Old 16-06-2013, 13:26   #80
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Re: Have to Upgrade My Battery Bank - Acid or Lithium ?

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Originally Posted by downunder View Post
Great link here.

Someone who has done a conversion well illustrated.

Lithium Batteries

Cheers
I can't seem to keep the mug full no mater how slow I pour the beer.
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Old 16-06-2013, 14:32   #81
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I suspect deriving the exponent by the method suggested might result in some delay to the install !!

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