Recent content by jhaz6471

high voltage disconnect 2.75v per cell Ok charging limit voltage 2.65v per cell Ok over voltage reconnect 2.5v per cell Ok boost voltage 2.5v per cell Turn off , Not needed float voltage 2.35v per cell 2.4v 90% charge , Been using for car start...

" under voltage recover ? " I look at it as like a bag of sand (battery) , Fill the bag of sand with water (watts) = full battery. Poke a hole in it ( size of hole = flow rate ( velocity is volts, the volume is watts) ) let it drain water ( so the sand does not come out ), . Look at the...

Those equalizers 1.2amp do not work well , they can have a .1v difference each cell progressive , 1.1 volt difference for 12 cells. I use https://www.ebay.com/itm/Hot-Universal-4-LTO-LFP-Lipo-Battery-Active-Equalizer-5A-Battery-Cells-Balancer/284141408574?hash=item422825d13e:g:z4wAAOSw-uRfBT1-...

Take a look at LTO , 40AH 6cell battery puts out 1600CCA at zero degrees F . I have tested a 30AH version at a local dairy farm for the last 3 years on a 8 liter diesel tractor . It started it at -15 F with no problems The 30AH puts out 1000 CCA and has a voltage equalizer on it and...

https://www.aliexpress.com/item/32956708540.html?gps-id=pcStoreLeaderboard&scm=1007.22922.122102.0&scm_id=1007.22922.122102.0&scm-url=1007.22922.122102.0&pvid=595663fe-4628-4098-8e6e-ac00ca3dbc74&spm=a2g0o.store_home.smartLeaderboard_1000002333347.32956708540 Jimjr

Don't forget to ware a face shield , Bugs hurt at that speed :shock: Jim Jr

Try using : http://www.gtsparkplugs.com/WireSizeCalc.html To get the amps you want at the voltage you need . divide your voltage by 12v and multiply the result with the number of amps the calculator give you. 72v at 150a would be 4.8 feet of total length of circuit with a 10 gauge wire...

Good Work , I use-to grow the big squash ( fair pumpkins ) . I had a 3000 gallon cistern under my front porch, I have a few tips for you. 1) Use high phosphorus fertilizer ( 10-48-10 ) for your fruit crop sand some root crops- more root systems -more fruit and ripen sooner A) Tomatoes...

Using a shunt bigger than the controller might get confused on the feedback since that shunt puts out between 75 to 100 millavolts at 100 amps , the hall effect coil puts out 4 volts . Use a 10k potentiometer to adjust to the voltage needed. The Hall effect transducer draws only what is...

While using a larger shunt will give a little bit more , Why not go for the max. Use a hall effect amp meter. They do not heat up and no resistance , because there isn't any break in the wire. Vvvvery little power draw and no heat at all. :mrgreen: :mrgreen: Example...

unklegrumpknee The challenges of doing that especially the large block of ice. The expansion would destroy the walls. The water being stagnant: how much algae and bacterial growth would there be? Phase change material eliminates these challenges yet can be a tenth or less in size and still be...

Hello All the stats for LTO are for one cell only. Not in a series of cells. Pushing the limits of series of cells charging them is where the problems show up 1) The internal resistance and the slight capacity difference, causes the cells at different time rates to full condition 1a) Above...

In order to smooth out starting loads use oil filled capacitors . they will take the shock of the starting load off the inverter. You can use one out of a house air conditioner , it stays on line with the inverter. You need to put it in a metal box if it should ever fail with a 20amp circuit...

If you were to build a new house 2k - 2.5k sq ft, Insulate it well , put up a double car garage and put a basement under it, and insulate it. Fill it with water , there is enough heat value in it to heat your house the entire winter. Summer season there is enough ice for the summer for cooling...

The only way I can think of is to use bridge rectifiers between the charger and each of the BMS to the battery packs . They will will prevent any back feed to BMS to BMS Use the 3 phase type , they are cheaper in the larger range needed, only use two of the three imput legs Jim