Saturday, November 26, 2011

RE: [Electric Boats] 48Volt system simple COTS question

 

I have been using Lestronics for many years now---both on my electric  boat and for charging my antique Milburn electric car.  First, for 60v, you’d probably have to have them make a custom model: http://www.lesterelectrical.com/products/lester_electrical_price_list_2011.pdf

Second, their standard models are sized so their power ratings don’t exceed the typical 15amp limit at 120vAC.  So while you’ll see 25-amp DC output at 36v and under, to deliver 25amp at 60v, they’d likely want to configure it for 208/240v AC input.  You’d need a 220vAC output generator configuration for that.

Ø   I am not familiar with the Lestronic charger. But if we make the following assumptions: 25 amp max to batteries at 60 volts is 1500 watts out. If the charger is at least 60% efficient then it will draw 2500 watts or less from the AC line. The Honda 3000 may handle this. The manual says 2.8 kva. 

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