Not sure where you you read that, but I'm betting it said 55kw and not 55kwh.
The bolt can charge at up to 55kw (assuming you are plugged into at least an 80kw DC fast charger) but it will only charge at that rate until the battery gets to 55% SOC, then it drops down to 35kw until it hits 70% SOC, where it drops down to 25 kw until it hits 85% SOC, 15kw until 95% and 10kw until 100% So if you push the car into the charging spot with a completely empty battery, you can charge at 55kw for about 37 minutes before the charge rate drops to 35kw, and another 15-16 minutes before it drops to 25kw, etc. The maximum you can get into the pack in 1 hour is about 45kwh, and that is only if you start with a completely empty pack and are using a charger rated for 80kw or higher. Oh yeah, temperature also effects charge rate, charging can slow down if the temperature is very high or very low. Note: you need a charger rated for 80kw because chargers are rated for different voltages than most EVs use. Most fast chargers are rated for charging a 500V pack or higher. So an 80kw charger is rated for a maximum of 160 amps at up to 500V. You don't get more current if using a lower voltage. The Bolt's battery pack is only 350-360V and it can only charge at a max of 155 Amps (~55kw) but as I said above it will only do that up to 55% SOC. If you plug into a 50kw fast charger (500V @ 100 amps) you will only get 35kw charging even if the battery is below 55% SOC. If you plug into a 35kw fast charger you will only get 24-25 kwh. So depending on the SOC you start at and the rating on the DC fast charger, you could end up with only 25kwh after 1 hour. I.e. if you plug into a 35kw charger (25kw effective charge rate) you will get exactly 25kwh after 1 hour unless you go above 85% SOC. The majority of the older DC fast chargers were rated for 35kw. February 23, 2021 6:05 AM, "Mark Hanson via EV" <[email protected]> wrote: > Hi folks > When I fast charge on the Road to 80% with my Bolt EV it takes about an hour > to put back 25KWH. The > manual says it should be 55kwh in an hour. Does anyone know why it’s not > charging at the 55KW rate? > Is there an aftermarket kit to boost the KW acceptance rate? Electrify > America fast CCS chargers > operate to 350KW. Also I paid 43c per kWh at Sheetz near Charlottesville Va > (home is 12c). I assume > they split the take between Sheetz and Electrify America (VW)? > I saw on the news that folks in Texas are paying $100s per KWH and utilities > cleaning out checking > accounts $10k-$16k since direct link to accounts. How is this even possible > to charge that much per > KWh? Aren’t utilities regulated for a max per kWh they can charge? I have a > direct link to my > checking account with my utility to pay the monthly $31 service fee (net zero > solar customer ) but > maybe I should discontinue my checking account number with them and go back > to monthly > billing/paper checks so they couldn’t clean out my checking account? > Have a renewable energy day > Mark in Roanoke > > Sent from my iPhone > _______________________________________________ > UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub > ARCHIVE: http://www.evdl.org/archive > LIST INFO: http://lists.evdl.org/listinfo.cgi/ev-evdl.org _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub ARCHIVE: http://www.evdl.org/archive/ LIST INFO: http://lists.evdl.org/listinfo.cgi/ev-evdl.org
