navneeth1986
Established Member
Hi Guys,
I charged my car to 100% yesterday. The voltage shows 400, is this normal?
Kind Regards
Nav
I charged my car to 100% yesterday. The voltage shows 400, is this normal?
Kind Regards
Nav
Which model? Presumably ZS to post in this forum, but classic or SR or LR?The voltage shows 400, is this normal?
Its the MG ZS EV 2022 model. short range.Which model? Presumably ZS to post in this forum, but classic or SR or LR?
Standard range. That's the likely new chemistry that we know little about.short range
Yes, When in ON mode.Standard range. That's the likely new chemistry that we know little about.
Is this voltage when in ON mode (not ready, no foot on brake)?
The SR is supposed to have the higher battery voltage. If so, the LR model must have very low battery voltage.
What do other SR model owners see with 100% SoC?
Weirdly I have another issue on the back of this. I used a granny charger last night, it was 65%, and scheduled a charge for 4 hours. It was 100% when complete. I was surprised by this.Standard range. That's the likely new chemistry that we know little about.
Is this voltage when in ON mode (not ready, no foot on brake)?
The SR is supposed to have the higher battery voltage. If so, the LR model must have very low battery voltage.
What do other SR model owners see with 100% SoC?
Does it stay at exactly 400 after charging, or does the voltage relax with time, say a few hours after charging, but no driving?400 is what I see too on my 2022 SR
I couldn't tell you exact voltages off the top of my head, but yes what you're saying is right. When charging or on KERS it's around 405-410, and when not charging it's around 390sDoes it stay at exactly 400 after charging, or does the voltage relax with time, say a few hours after charging, but no driving?
I ask because that's a characteristic of LFP cells, they quickly fall in voltage to one of two plateaus, and that relaxing is what I believe makes them last longer. The longer that they stay away from high cell voltage, the longer they will last.
Is it perhaps the case that during charging, the voltage is higher, say around a peak of 410V, and they relax back to 400V by the time you look?
Woo hoo. That sounds like LFP. Good to have that confirmation.When charging or on KERS it's around 405-410, and when not charging it's around 390s
Ah. It looks to me that they charge to some value greater or equal to 415V, and the battery voltage relaxes from there over a period of minutes to hours. So unlike the NMC chemistry that retains the voltage it was charged to, LFP will settle to a value somewhat less than the peak voltage. Possibly that settled voltage is around 400V, though it may well depend on the battery temperature.My standard model showed 415 volts this morning after a full charge