Charging specs updated in Blank Slate description.

[dragondroptv]

Looks like Slate quietly updated the specs for the Blank Slate in the maker. The only meaningful specification changes I could find are the addition of Level 1 charging information and the revised Level 2 charging performance. Everything else looks like formatting or wording cleanup. changed:

Charging Updates

• Level 1 charging was added
  • 20–80% charge in approximately 17 hours
• Level 2 charging was updated
  • Increased from 25–32 miles of range per hour to 25–40 miles per hour
  • Full charge changed from 4–8 hours to 4 hours
• Level 3 chargingremains the same:
  • 20–80% in around 30 minutes

 

[Rocks]

I wonder if this means they finalized the onboard charger?

 

[ElectricShitbox]

68 amp level 2 charging? Would be interesting, but I'll bet that's an error. Their previous numbers worked out to 48 amp onboard charger which would put it closer to 6 hours.

 

[cadblu]

68 amp level 2 charging? Would be interesting, but I'll bet that's an error. Their previous numbers worked out to 48 amp onboard charger which would put it closer to 6 hours.

I have to agree, 68 amps is dead wrong. That means the circuit breaker would need to be rated at 85 amps! (125% continuous current draw). As an example, Tesla on board chargers draw 32 max amps on a recommended 50 amp breaker @ 240 volts.

 

[ElectricShitbox]

I have to agree, 68 amps is dead wrong. That means the circuit breaker would need to be rated at 85 amps! (125% continuous current draw). As an example, Tesla on board chargers draw 32 max amps on a recommended 50 amp breaker @ 240 volts.

There's EVs that have 80 amp onboard chargers, but typically higher end vehicles. And yeah, it takes one hell of a circuit for that, haha.

 

[tubes]

There's EVs that have 80 amp onboard chargers, but typically higher end vehicles. And yeah, it takes one hell of a circuit for that, haha.

Hire a commercial electrician. Agree, that doesn't make sense for a home charger.

 

[danielt1263]

I think 4 hours is supposed to be the 10%-80% time. That would make sense.

240v at X amps	Time to charge 63kWh
24 amps/5.76kWh	10.9 hrs
32 amps/7.68kWh	8.20 hrs
40 amps/9.60kWh	6.56 hrs
48 amps/11.5kWh	5.48 hrs

 

[coregrind]

Charging Updates

• Level 1 charging was added
  • 20–80% charge in approximately 17 hours
• Level 2 charging was updated
  • Increased from 25–32 miles of range per hour to 25–40 miles per hour
  • Full charge changed from 4–8 hours to 4 hours
• Level 3 chargingremains the same:
  • 20–80% in around 30 minutes

Other pages on the site display the previous/original details. Is this another Maker bug?

 

[AZFox]

240v at X amps	Time to charge 63kWh
24 amps/5.76kWh	10.9 hrs
32 amps/7.68kWh	8.20 hrs
40 amps/9.60kWh	6.56 hrs
48 amps/11.5kWh	5.48 hrs

Your chart needed one more so it could include my dryer outlet:

16 amps/3.8 kWh

16.5 hrs

 

[ADFX01A]

Does this mean the Slate's onboard charger will allow an L1 charge at a continuous 16 amps if plugged into a dedicated 20 amp circuit?

 

[kvermeer]

Other pages on the site display the previous/original details. Is this another Maker bug?

I see the same thing, https://www.slate.auto/en/specs still shows 20 hours while the details under the Blank Slate at https://www.slate.auto/en/store/TB009 now says 17.

The math says that 60% (20 to 80) of 65 kWh is 39 kWh, at 120 VAC that's 325 amp-hours, if you have 20 hours you can do that at 16.25A (very close to a common 16A L1 charger, assuming 100% conversion efficiencies) or if you have 17 hours you need to charge at 19.1A (which is extremely uncommon).

 

[cadblu]

68 amp level 2 charging? Would be interesting, but I'll bet that's an error. Their previous numbers worked out to 48 amp onboard charger which would put it closer to 6 hours.

Can you kindly share where the 68 amps for L2 charging is listed? I see that both chargers in the maker (classic level 2 black and white) are shown as 48 amps.

 

[ElectricShitbox]

Can you kindly share where the 68 amps for L2 charging is listed? I see that both chargers in the maker (classic level 2 black and white) are shown as 48 amps.

I worked backwards from 4 hour charge time to calculate the onboard charger size. What you're looking at is the EVSE that supplies power to the vehicle and onboard charger.

 

[danielt1263]

I see the same thing, https://www.slate.auto/en/specs still shows 20 hours while the details under the Blank Slate at https://www.slate.auto/en/store/TB009 now says 17.

The math says that 60% (20 to 80) of 65 kWh is 39 kWh, at 120 VAC that's 325 amp-hours, if you have 20 hours you can do that at 16.25A (very close to a common 16A L1 charger, assuming 100% conversion efficiencies) or if you have 17 hours you need to charge at 19.1A (which is extremely uncommon).

Except that the battery is only 63 kWh usable, not 65.

 

[adele]

I see the same thing, https://www.slate.auto/en/specs still shows 20 hours while the details under the Blank Slate at https://www.slate.auto/en/store/TB009 now says 17.

The math says that 60% (20 to 80) of 65 kWh is 39 kWh, at 120 VAC that's 325 amp-hours, if you have 20 hours you can do that at 16.25A (very close to a common 16A L1 charger, assuming 100% conversion efficiencies) or if you have 17 hours you need to charge at 19.1A (which is extremely uncommon).

I am attempting to understand electricity here but I need someone to dumb this down for me. I had calculated that “20% to 80% in 20 hours” would be just enough for me, so I would stick with a regular outlet that looks like ( D= ). I believe the outlet is 15 amps. If I understand you correctly, you’re saying I need at least 16 amps? So my standard outlet won’t be enough?

If that’s the case, very misleading on Slate’s part.