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Post by Deleted on Oct 26, 2020 10:29:11 GMT
I'm now wondering if the best way to do onboard electrics would just be to go 48v main system and have a small 12v setup for existing devices. These look really cool www.ebay.co.uk/itm/2-x-Pylontech-48V-US3000-Lithium-Ion-battery-with-3-5-Kwh-total-7-0Kwh-/254580279886I just collected a couple of big solar panels and the bloke said he will be selling these Pylontech units.. Not excessively expensive. 7kwh is 530ah at 13.2v ( 12v equivalent). 2 grand. I like the way they have all the gear on board and are stacked. Interesting item. Not sure if they have quite a high enough C rating for electric drive but maybe if not hammered it would be ok.. |
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Post by peterboat on Oct 26, 2020 11:30:15 GMT
I'm now wondering if the best way to do onboard electrics would just be to go 48v main system and have a small 12v setup for existing devices. These look really cool www.ebay.co.uk/itm/2-x-Pylontech-48V-US3000-Lithium-Ion-battery-with-3-5-Kwh-total-7-0Kwh-/254580279886I just collected a couple of big solar panels and the bloke said he will be selling these Pylontech units.. Not excessively expensive. 7kwh is 530ah at 13.2v ( 12v equivalent). 2 grand. I like the way they have all the gear on board and are stacked. Interesting item. Not sure if they have quite a high enough C rating for electric drive but maybe if not hammered it would be ok.. 48 volt to 12 volt chargers are as cheap as chips so it would work, I have to say though for 2.2K I bought 17.5kwh of lithium polymer batteries so not sure how good value they are? In fact a chap who I bought solar panels from was selling these a couple of years ago he installed them on a house in France as he had no mains lecce |
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Post by Deleted on Oct 26, 2020 11:55:46 GMT
I think you bought second hand though didn't you? Probably fine but I would go for new myself. They seem to be reasonably good value compared with other complete packaged LiFePo4 systems with BMS etc. Comparison out of the air is one of these Pylontech things 2.4kwh ie 200ah at 12v around £800. v 100ah LiFePo4 branded block "TN power" £525 so over £1000 for equivalent 200ah. And I remember Telemachus saying he spent around £2k on 600ah @ 12v Calb cells which would be around the same as the Pylontech but the latter don't need any fiddling with as all the systems are already in the box. They look like reasonably good value to me... For someone who does not wish to develop their own electronics or have multiple small cells to strap together. The C rate seems to be 25a charge or discharge which if transalted to 12v would be 100a so not too bad. |
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Post by peterboat on Oct 27, 2020 0:48:51 GMT
I think you bought second hand though didn't you? Probably fine but I would go for new myself. They seem to be reasonably good value compared with other complete packaged LiFePo4 systems with BMS etc. Comparison out of the air is one of these Pylontech things 2.4kwh ie 200ah at 12v around £800. v 100ah LiFePo4 branded block "TN power" £525 so over £1000 for equivalent 200ah. And I remember Telemachus saying he spent around £2k on 600ah @ 12v Calb cells which would be around the same as the Pylontech but the latter don't need any fiddling with as all the systems are already in the box. They look like reasonably good value to me... For someone who does not wish to develop their own electronics or have multiple small cells to strap together. The C rate seems to be 25a charge or discharge which if transalted to 12v would be 100a so not too bad. No brand new lithium polymer complete with interconnects they are for my electric car as I wanted a decent range and speed, had to buy balance boards though. They also charge to 63 volts but my limit is 60 volts to extend their life, as I said I think the items you are looking at are expensive but as a plug and play system would work, but for me just not enough range or ability to hand out the amps |
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