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  1. Tradewinds63

    Best practice for 300kgf ‘fixture’ 280Ah cells

    That's what I thought also as mm² and cm² would be insane amounts of pressure. But the literature expresses within a single snippet mention, the area in which the force is applied to, referencing the plane perpendicular to the Y axis and providing that areas dimensions. So it isn't applied to...
  2. Tradewinds63

    Best practice for 300kgf ‘fixture’ 280Ah cells

    I'm going to guess they contracted the test out to some old geezer in China who provided them with that? 😜 What's sad is that they just slapped it into the literature for all their LF line-up, altering only the surface applied to data and battery model info. Not realizing it became inaccurate...
  3. Tradewinds63

    Best practice for 300kgf ‘fixture’ 280Ah cells

    After reading the EVE test data amongst the several LF model batteries and comparing it to this chart... It's clear that the EVE experimental test subject was the EVE LF 304. If you compare the surface areas of the various batteries, only one, the LF 304 comes to approximately 660 lbs (300Kg)...
  4. Tradewinds63

    Best practice for 300kgf ‘fixture’ 280Ah cells

    Is the graph you shared something you put together or something someone else did? I'm currios to know if the test was performed on a single battery or was it performed on a series of batteries? Next question, how long have you had your compression device in service and have you taken out any...
  5. Tradewinds63

    Best practice for 300kgf ‘fixture’ 280Ah cells

    kgf is an informal or casual engineering term and relates to a unit of mass (the kilogram, hence kg. The remainder is f for force. Kilograms force) and should also be accompanied by some other unit of measure such as area, time, etc to provide a specified relationship of work. Since we are...
  6. Tradewinds63

    Best practice for 300kgf ‘fixture’ 280Ah cells

    Uhhh. Big time misunderstandings in here about clamping/fixtures and it's purpose... This is an initial few charging cycles degasing procedure for NEW batteries only. Firstly, I hope none of you applied 300k force to your battery cells. 300kgf in its expressed context by the manufacturer...
  7. Tradewinds63

    Prismatic LiFePo4 without terminal connectors, what to do?

    I'd recommend not attempting to add a stud but rather alter the method of terminal connection used. Use a strip bus and spot weld them with a simple spot welding system. You can later peel off the bus strips with a pair of pliers when you want to disconnect them. It may be a less service...
  8. Tradewinds63

    MPP-Solar LVX-6048

    I'm considering a purchase on a LVX-6048 as an emergency backup for my 11 year old off-grid 48V system with Xantrex/Schneider Electric XW4548 110/220VAC with Outback FM80 MPPT CC. The current system has run flawlessly non-stop (less battery replacement periods, etc) for over 11 years now, home...

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