EEVblog Electronics Community Forum
Products => Test Equipment => Topic started by: No.15 on August 07, 2020, 02:30:11 pm
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Before I go and drop to much money I thought I would ask here for recommendations.
I am interested/need to test different batteries and battery packs. Anything from ~3v to 48v and 20Ah and up, usually less than 300Ah for now but who knows in the future.
I would like to log so I can chart and graph. Easily used included software would be great. I am not really interested in a DIY solution at this point unless I really can't find something reasonable to fit the bill.
Reasonable to me is ideally ~1k usd but I am willing to stretch a little for the right product. I just don't want to buy anything that is to overkill or fancy.
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What kind of power dissipation do you need?
If you're looking for a budget friendly choice, recently the Kunkin KP184 has received a lot of attention - there's lots of posts about it on the forum here.
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What kind of power dissipation do you need?
If you're looking for a budget friendly choice, recently the Kunkin KP184 has received a lot of attention - there's lots of posts about it on the forum here.
I know I can't really afford the power I need to run these tests as fast as I want. So I just need to get the highest watts I can without breaking my budget and/oe buying something that's not going to last. Ideally I would like to test the batteries at .5c but that is like 1200 watts or more on some packs. Individual cells I can probably get .5c between 150 and 400 watts.
I saw the Kunkin but I am a little worried about longevity. I have a lot of cells and batteries to test. Used an new packs from cars, prismatic cells I get from China etc. All being used or repurposed as storage for solar projects
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So I generally don't like to buy from ebay but in a moment of weakness I sent a lowball offer on an item and to my suprise the seller accepted.
Hopefully I did not make a huge mistake but life is about learning huh :-//
Amrel PLA800-60-300E
General
Power Input (MAX) 800W Voltage (V) (MAX) 60 Current (A) (MAX) 300
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So I generally don't like to buy from ebay but in a moment of weakness I sent a lowball offer on an item and to my suprise the seller accepted.
Hopefully I did not make a huge mistake but life is about learning huh :-//
Amrel PLA800-60-300E
General
Power Input (MAX) 800W Voltage (V) (MAX) 60 Current (A) (MAX) 300
That's a nice one. Can I ask what you paid?
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So I generally don't like to buy from ebay but in a moment of weakness I sent a lowball offer on an item and to my suprise the seller accepted.
Hopefully I did not make a huge mistake but life is about learning huh :-//
Amrel PLA800-60-300E
General
Power Input (MAX) 800W Voltage (V) (MAX) 60 Current (A) (MAX) 300
That's a nice one. Can I ask what you paid?
So I don't say it out loud, I went 10% over budget plus shipping Edit: doh |O bad math, corrected
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So I don't say it out loud, I went 10% over budget plus shipping Edit: doh |O bad math, corrected
That's a fair bit of change but DC loads somehow aren't cheap. Much more mundane DC loads command similar or much more substantial amounts. It looks to be a very useful unit, high resolution and modern interfaces and in great shape too. I feel you did well. I need to check Ebay more often! ;D
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So I don't say it out loud, I went 10% over budget plus shipping Edit: doh |O bad math, corrected
That's a fair bit of change but DC loads somehow aren't cheap. Much more mundane DC loads command similar or much more substantial amounts. It looks to be a very useful unit, high resolution and modern interfaces and in great shape too. I feel you did well. I need to check Ebay more often! ;D
Agree, I was somewhat shoked at the prices when I started looking. I am of the mindset buy once, cry once, so I was not interested in the cheaper what I perceive to be throwaway brands. Even though for what I am doing I probably could have purchased a coulomb counter and a giant resistor or used my heat gun as a load :).
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Note that DC loads can easily be paralleled, so a couple of cheaper loads might be an option.
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Finally got the new load bank. Amrel PLA series load bank.
I can connect to it over ethernet just fine but I am a total failure at getting it to do what I want, which is to basically capacity test batteries.
Can anyone point me to a SCPI primer? Does anyone have an example script of what I am trying to do that I can copy or use as a template?
Should I post these questions in a different forum? Thanks