Recent content by galeson

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    Headway Headquarters contact info

    patricia@headway-headquarters.com
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    15S LiPo charger using DC DC converters

    I have built a charger for my Headway 13S6P pack. I am using the 48 volt to 3.3 volt Synqor converters. I do not have my 48volt source yet. I have put 20A fuses in the wires from the converters to the cells. When I connect the wires to the cells it blows the fuses. Is this to be expected or...
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    Headway Pack Builders thread

    Yes I ordered a lot. But the price on the Headway page is $13.00 each. It doesn't say there is a minimum. The rest depends on the shipping costs etc.
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    Headway Pack Builders thread

    I just received my Headway P cells order from Lorraine. I had it shipped by air and the total cost including air, brokerage, and duties came to $16.60 ea. If I wanted to wait a few months the cost would have been about $14.10 ea. The good news is that the lego blocks now fit both ends of the...
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    Headway Pack Builders thread

    I Googled for a couple of hours to try and find out what the recommended torque of the screws on Headway cells should be. I did find a site that specifies the torque for 40138 cells should be 6.9 lb-in, but it didn't say the manufacturer of the cells. Does this figure sound about right? I'm...
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    Headway Pack Builders thread

    3.15 inches x 1.58 inches
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    Terminating the 15Ah and 20Ah Cell-Man cells

    I like this solution best. It will make it easier to build parallel pack packs. How about using barrel bolts for the fasteners. You could epoxy the female end into the board and it would save you the countersinking, and there wouldn't be the problem with the bolt spinning if you ever needed to...
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    Testing the big 15 and 20Ah LiFePO4 cells is tough! *Pics*

    From reading through the text it appears that the picture of Plasmaboys pack has the side shown as the top. He plans to have the cells stacked up. Also note there is no provisions for cooling although the case was designed by Dow/Kokam itself.
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    Terminating the 15Ah and 20Ah Cell-Man cells

    It looks to me from the exploded view of plasmaboys battery pack that there is no provision for cooling at all. The case is lexan (not particularly good thermal conduction) and he is planning to have very high pulse usage as well as drive the white zombie on the street.
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