I am charging with granny charger for the first time and it says 1.4kw charging power

Campbell
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Joined: Thu Feb 03, 2022 10:47 pm

Post by Campbell »

The charge rate will drop if you have long or poor quality extension leads.

If you can find one with 1.5mm conductors (Like on on 15A extension leads) that may help. (NOTE: 15A Plugs and sockets are different)
Gunnu
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Joined: Sat Jun 26, 2021 9:06 am

Post by Gunnu »

It's normal but would recommend to go for 7kwh charger. It's great for a quick top up or can fully charge in 7-8 hrs
Yudi
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Joined: Sun Nov 13, 2022 10:50 am

Post by Yudi »

Ok
Matthew
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Joined: Fri Nov 05, 2021 11:09 am

Post by Matthew »

Have a 32A circuit installed to an isolator then install a 7kw (32A) single phase charger. Full charger from 0% - 100% is like 7/8 hr. I'm so glad I got one
Mark
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Joined: Thu Apr 21, 2022 7:00 am

Post by Mark »

Is it ok? Depends on your needs. Is it normal? Yes, new deliveries get an 8A EVSE, where previous ones got a 10A EVSE. 8A is about 1.8 kW, but the atto3 seems to both draw less than the supply rating and measure charge rate after losses, bringing it down to about 1.4 kW.
Drew
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Joined: Mon Apr 25, 2022 8:30 am

Post by Drew »

Mine 1.3 also
Andrea
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Joined: Sat Sep 11, 2021 8:00 pm

Post by Andrea »

Yup .. should get around 33% over night
Adam
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Joined: Sun Aug 28, 2022 4:54 am

Post by Adam »

900w to 1600w also depends on what else is on the circuit (1000w microwave, toaster, kettle, fridge) that are in use at the same time.
Russ
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Joined: Thu Oct 21, 2021 6:48 pm

Post by Russ »

Granny ain’t too well. It’s normal for the backup. Honestly if it delivered the proper 10ams 2.4kw I wouldn’t have needed the 7kw charger I put in..
Briony
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Joined: Mon Jan 31, 2022 12:41 pm

Post by Briony »

I only use the granny charger and I always get 1.4kw. it's normal.
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