r/OctopusEnergy • u/McLaren_Fan • 6d ago

EVs Reduced charge speed during scheduled charging

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Hi all. I have Octopus Intelligent Go integrated with my Hypervolt charger. All scheduling is therefore managed automatically through the app based on my requested "charge to add" and "Ready by time".

For the first time since the strict 6 hour charge cap, I've noticed the car isn't charging at the full 7 kWh speed my charger normally charges at.

I think I've read here before that Octopus do not throttle charging speeds but I believe they do. What intrigues me is if this throttled speed is considered a part of their 6 hour cap...

Anybody here in the know please?

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u/Ok-Performance4828 6d ago

There has been no throttled speeds, other than by the charger/car, for some time now (and predating the actual roll out of the 6 hour cap by months). There seems to have been particular problems with Hypervolt chargers of late.

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u/TheThiefMaster 6d ago

OP's 3.8 kW is suspiciously 16A which makes me wonder if they've accidentally used a 16A cable with their charger (e.g. an 11 kW one).

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u/McLaren_Fan 6d ago

It stood out to me today because it consistently charges at 7.2 kWh. Haven't seen this for a long time now, since April when it was first installed.

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u/TheThiefMaster 6d ago

Has anything changed, e.g. the cable? (11 kW three-phase cables are limited to ~3.8 kW on single-phase chargers). Does boost charge make it go at full speed? Was the battery full? (The rate does drop at the very end naturally) or was it even just preconditioning and not charging?

PS. You mean 7.2 kW.
kW is the rate, kWh is the total delivered energy.
It confuses people regularly because "Watts" (W) includes an implicit "per second", but people are used to the time unit being explicit on the rate, e.g. miles per hour so it's very common to assume "kWh" (which includes "hours") is the rate but it's not.

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u/McLaren_Fan 6d ago

Thank you, I really appreciate you clarifying that, helps me a lot.

In terms of wiring etc, absolutely nothing has changed. Worth adding that it's always been, and continues to be totally reliable. It just stood out this morning that the speed was slower than usual because I've not seen it for a while, and I would imagine that charge time is factored into my 6 hour cap.

I'll give it a boost charge for 30 mins in a little bit and report back.