CEEBEE wrote: Seems the average power output required for most laptops is around 0.5 - 4 amps so will be ample. If output is 18v = 720 watts at 4 amps. |
dontpanic wrote: Looking further into this the mac book has a tricky rectangular plug that is magnetic so it will not adapt to any cigarette lighter type charging systems I have come to the conclusion that by the time we invest into a differant laptop/notebook/tablet I may as well invest in house batteries and be done with it. Simplest setup I have in mind is to repace the starboard N150 battery with 2 huge Chinese AGM batteries 275AH@20hr, I will remote mount the batteries foward and centre of the engine room in a locker under the galley floor so the extra weight will not make the boat lean, these AGM batteries have a very high CCA rating so they will easily start the starboard engine and 550AH will be plenty for our weekend boating trips, the entire electrical system will remain factory exept for the 2.5m extention of battery cable and the bigger battery bank for the starboard engine. Brendon |
dontpanic wrote: Thanks Guys Salty C your thinking is very close to mine and I appreciate your advice so far The batteries I am looking at are Nomad AGM they are at the cheaper end of the market but I am thinking if I go big then I will not need to lean on them as hard for our regular weekending and we have reserve capacity for the occasional longer tripp in the future I dont mind spending a few dollars to get this right because this is our family toy and its quality time that we spend together that makes it easy to justify in my opinion Cheers Brendon |
SaltyC wrote: these batteries will take up to 5 times their rated ah as input, |
MikeAqua wrote:
I'm struggling to understand your statement Are you saying these will take 5 x 225A as a charge current? That seems very high. |
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