Newb Asks: Can we charge a BMW PHEV single cell module with a bench power supply? Topic is solved
- Gregski
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Re: Newb Asks: Can we charge a BMW PHEV single cell module with a bench power supply?
and just for completeness here is what it looked like set to a hard 4 amp DC limit
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Re: Newb Asks: Can we charge a BMW PHEV single cell module with a bench power supply?
and finally at the max of what this PSU can put out, 5 amps DC
so one thing we notice is that when we crank this unit to the max on the amp dials (coarse and fine) it actually goes a bit above 5 amps
so one thing we notice is that when we crank this unit to the max on the amp dials (coarse and fine) it actually goes a bit above 5 amps
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Re: Newb Asks: Can we charge a BMW PHEV single cell module with a bench power supply?
and here we are after charging for 1 hour
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Re: Newb Asks: Can we charge a BMW PHEV single cell module with a bench power supply?
Just yesterday i noticed my 4th module of 16S was riding 0.5V lower than other cells. I connected 5A 16S charger to it WHILE IN THE PACK OF 104S. Charger had no problem bringing that up in 1/2 hour.
It is not a problem as long as you observe correct polarity and wear gloves and eye protection...
It is not a problem as long as you observe correct polarity and wear gloves and eye protection...
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Re: Newb Asks: Can we charge a BMW PHEV single cell module with a bench power supply?
thank you for sharing that, what battery pack are you using that's 104S I thought 96S were pretty commonarber333 wrote: ↑Fri May 20, 2022 4:52 pmJust yesterday i noticed my 4th module of 16S was riding 0.5V lower than other cells. I connected 5A 16S charger to it WHILE IN THE PACK OF 104S. Charger had no problem bringing that up in 1/2 hour.
It is not a problem as long as you observe correct polarity and wear gloves and eye protection...
"I don't need to understand how it works, I just need to understand how to make it work!" ~ EV Greg
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Re: Newb Asks: Can we charge a BMW PHEV single cell module with a bench power supply?
captured the current dropping gradually as the battery got closer to the max voltage this PSU could spit out
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Re: Newb Asks: Can we charge a BMW PHEV single cell module with a bench power supply?
Is all this because you're upset with that Chevy charger? I can just imagine half a dozen Ali-express bench PSU's strapped in the back of your truck!
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Re: Newb Asks: Can we charge a BMW PHEV single cell module with a bench power supply?
ha ha, no this is something I've been meaning to try for a while now, and the charger is working fine it's the converter that needs a bit of an attitude adjustment, and when I built my electric motorcycle that's exactly what I did I bought six baby charger before going with a Zevan I think it was called
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Re: Newb Asks: Can we charge a BMW PHEV single cell module with a bench power supply?
so this is where we were at the two hours mark
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Re: Newb Asks: Can we charge a BMW PHEV single cell module with a bench power supply?
and I guess charged as much as we could to 61 volts after 2.5 hours
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Re: Newb Asks: Can we charge a BMW PHEV single cell module with a bench power supply?
and as far as in the truck charging I will either be using my Tesla Model S second gen charger or the first gen Chevy Volt one
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Re: Newb Asks: Can we charge a BMW PHEV single cell module with a bench power supply?
Jaguar has 108S, but i had to use 104 because my inverter wouldnt work with more than 420Vdc
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Re: Newb Asks: Can we charge a BMW PHEV single cell module with a bench power supply?
So the efficiency of your PSU is a little over 50%? 110v 5A in ~60V 5A out.