SPIM08HP 3.7V 16AH Battery which can handle 200 amp pluses Battery Hookup

[sam_sam_sam]

Re: SPIM08HP 3.7V 16AH Battery which can handle 200 amp pluses Battery Hookup

Battery operated battery stud welder testing is going to be done on bench power supply for testing the voltage on the mosfet driver circuit because of know issues with these battery operated battery stud welder controllers because of not having a filtering capacitor on the mosfet drive circuit but having to big of filtering capacitor on the battery input terminals which will be correctly sized and correctly configurations

More information about this issue can be found on YouTube videos about battery operated battery stud welder controller boards

[sam_sam_sam]

Re: SPIM08HP 3.7V 16AH Battery which can handle 200 amp pluses Battery Hookup

This is a little bit misleading what they are talking about is that the battery terminal tabs on each end need to have there tabs compression but you need to have the battery cells compression so that the battery cell terminals are not put uneven stress on them

What I going to do is ******The normal setup for these battery cells ( 2“P”1“S” = one battery pack ) ( X 2 battery cells-plate that group 6 of them together ) how many series cells need to have the correct battery voltage required for your application ********

But for the battery operated battery stud welder
The setup is going to be 1“P”1“S” X 3 cells is series for a voltage of 12.6 volts

Which means that I have to re-bend one the battery cell terminal the opposite direction on each battery cell for a total of three of them so I can have a 3 battery cell configuration and compress those two battery pack cells except two battery terminals for the positive side and the negative side on two different battery cells which does not need to be compression to the other battery cells but does have to be supported to the battery cell plastic housing that does the compression
( with out using the battery cell grouping jointing plate )

I hope this helps clear up the confusion about what they are talking about

One note you might think that this would not allow the battery pack cells to expand you would be wrong it will allow it to expand however it would be more constrained to a smaller space which might not be a good thing in the long run if something went terrible wrong with the battery pack

The problem I going to have is to find a good quality BMS protection board for this project which is going to be a little of a problem for me because I do not know what brand of BMS balancing protection board I need to use for 200 amp pulsing output

If someone knows where I can find a BMS balancing protection board that is known for there quality please post a website link to it I would be very interested in this thanks

[redwire]

Re: SPIM08HP 3.7V 16AH Battery which can handle 200 amp pluses Battery Hookup

What does this mean "proper compression"? You have to squish them?

"...THESE CELLS ARE RATED FOR 200A CONTINUOUS EACH WITH PROPER COMPRESSION. YOU CAN SIMPLY USE THREADED RODS IN THE CORNERS OF THE CELL HOLDERS TO COMPRESS."

[sam_sam_sam]

Re: SPIM08HP 3.7V 16AH Battery which can handle 200 amp pluses Battery Hookup

i am interested in this stuff because its looking like i need to be getting it all myself .. am already amassing the faulty battery packs from a place i do electronic electric repairs for when its something beyond them ..
packs are either 80v or 82v .. basically the same inside different stickers outside .

If you want me to I can post a graph of a battery cell that I know that would be a problem to charge because it will become hot when charging it

Just let me know if you want to see what it would look like

[sam_sam_sam]

Re: SPIM08HP 3.7V 16AH Battery which can handle 200 amp pluses Battery Hookup

Just have to find a surplus battery supplier that you can trust what battery rating and if not delivered can you get reimbursed for your loss this is half the battle I have gotten lucky that I found a surplus supplier that I can trust

The other issue is testing batteries you have to have a battery tester machine that you can trust and understand the charging and discharging curves graphs that you are looking at

You can use a SkyRc IMAX b6 battery charger tester can be very useful for testing for heater cells which is very important to know from the beginning as you are charging them up if the battery voltage is below 3.00 volts ( you can do the same thing with this charger but it not as easy as it with the battery testing machine that I am taking about below)

But would also need a battery testing machine that I am using for looking at the charging and discharging curves graphs because what this tell you weather or not the battery cell has an issue or even before you finish the cycle

I have bought some medical battery packs that the cells are known to have this issue with them heating up when the cells are going bad now if you can get one amp hour from a cell that is rated three amp hour then you know that the battery cell is near the end of life I can just hook up a battery from this battery pack on this battery testing machine and I will know with in less than 5 minutes if these batteries in this pack has issues because I know what the charging curve is suppose to look like ( charging voltage is going up to quickly for the amount of time that it has been on charge )

I have had some issues with some batteries that I have bought from them however they have taken care of me when this issue has come up in the past

I do not always let them know if let say I have bought four of the same exact battery packs and I get a bad battery pack if has a BMS protection board or a case that I can still use and it still work good or if I can still use the BMS protection board or case then I do not have a total loss just a some what loss

Most of the time the battery pack are not that expensive in the first place

One other test that this battery testing machine can do for you is that you can monitor the battery voltage in the standby mode meaning that you are not charging or discharge the battery you can see how bad the self discharge is on an individual battery cell this is also very important to know as well

Now a lot of people on YouTube have also mentioned that internal resistance is also important to know but I have not found that this is very important to me as far as how good a battery is preforming for what I am using them for

Now this might make a difference if you have the battery pack sit for a very long time and you do not get the same exact results as far as milliamperes hours are concerned yes this might be an issue if you have to reliable battery pack

[petehall347]

Re: SPIM08HP 3.7V 16AH Battery which can handle 200 amp pluses Battery Hookup

i am interested in this stuff because its looking like i need to be getting it all myself .. am already amassing the faulty battery packs from a place i do electronic electric repairs for when its something beyond them ..
packs are either 80v or 82v .. basically the same inside different stickers outside .

[sam_sam_sam]

Re: SPIM08HP 3.7V 16AH Battery which can handle 200 amp pluses Battery Hookup

Here are the results from the battery testing machine for the battery test that was done on the battery mentioned above

I would have gotten the same exact results if had charged the battery to 4.2 volts instead 4.1 however I was going out to grocery store shopping so I did not charge it at fast rate up to the 4.2 volts

I think that these batteries will work very well with the battery operated spot welder that I now have to modify and finish testing the rest of the batteries that I bought for this project

I am also going to buy four more set of 2 battery cells pre pack and replace the battery in my battery jumper battery pack that the battery when bad it

What you see on the work table is just one battery cell it comes two battery cells per pack

Looking at the results from the second battery cell it is looking like it results will be very similar ( to the first one that I tested earlier) that being tested on the SkyRc IMAX b6 battery tester now

The way I going to set this battery pack is one “P” cell X 3 “S” = 12.6 volt battery pack

[sam_sam_sam]

Re: SPIM08HP 3.7V 16AH Battery which can handle 200 amp pluses Battery Hookup

Well I have done some testing over night and the one I have tested has 8119 milliamperes hours
The test results was from the SkyRc IMAX b6 battery tester ( the battery hookup stated that your results would in a range of 8 to 9 amp hours so that what I got so far pleased with the results no heating issue at this charging rate )

I had the setup at 2 amp fast charging mode and it took about 4 hours to finish charging and a lot longer to discharge at 1.2 amps is the maximum discharge rate on this battery charger

Now I am doing a test on the battery testing machine that one I will post the results from the results are easier to read and more accurate results ( battery hookup uses the same battery testing machine for there results )

[sam_sam_sam]

Here is something that I just bought some of these

https://batteryhookup.com/products/2...hreaded-insert

for the battery stud welder that I also just bought from EBay

https://www.ebay.com/itm/12473174466...53.m2749.l2649


I have not had time to test these batteries yet but I will probably do at least one of them over the weekend and I will post the results from the testing