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Glubux's Powerwall
(02-07-2019, 06:28 AM)Glubux Wrote: Yeah with big powerwalls we have so much storage capacity I don't really see a need to go above 4v, I prefer to keep my cells as comfortable as possible to make them last longer.
It also add a safety margin when if your packs are not perfectly balanced

Adding to that from my own experience with not perfectly build cells even if i went down to 4.0v I would lose no useable capacity just due to the fact the cells would be more balanced bottom end anyway. *might go drop mine to 4v this weekend Smile
OffGridInTheCity, Glubux, jdeadman like this post
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Ooops, I think I added 74 kWh of storage capacity...

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(04-07-2019, 12:31 PM)Glubux Wrote: Ooops, I think I added 74 kWh of storage capacity...

Perhaps drive it for a few years before ripping the pack out ?
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This car is simply amazing! it ads a big buffer to the instalation, I'm going to set a new record with more than 38 kWh gathered from the sun today, and it's not even summer  Cool

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(04-13-2019, 04:49 PM)Glubux Wrote: This car is simply amazing! it ads a big buffer to the instalation, I'm going to set a new record with more than 38 kWh gathered from the sun today, and it's not even summer  Cool


How do you manage the solar-charging without pulling form your powerwall unless necessary - and not pumping it out to the grid?
Ie. how do you charge directly from solar?

RS485 to the tesla walladaptor, special charger, or just manually?
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For now I am doing it manually, I made the two EVSE, one for the Nissan Leaf with a Simple EVSE board, one for the Tesla with the Mainpine controller, I can select the power of both EVSE simultaneously  with a selector and a load shedding device can also drop the charging rate to avoid stressing the inverter above 6000w.

 


By the way I'm offgrid Wink
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ok just read this thread... OH MY GOODNESS... your thread has given me so much encouragement and ideas. thanks so much for sharing your journey.

I have two nissan leaf's, 9KW of Solar and 12 KWH or lead carbon batteries (soon to be replaced with a power wall... ok maybe not soon) one leaf i purchased almost four years ago and the other i purchased crashed and repaired to go petrol free.
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You're welcome Smile
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Oops, I did it again, 600 batteries to process...



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There's a great use for a tesla !
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Second Life Storage Cell Finder
Lithium Power Australia http://bit.ly/lithium_power
Paolo Italy https://ebay.to/38xPUhT
Battery Hookup USA http://bit.ly/batteryhookup (10% coupon 'Powerwalls')
BigBattery USA  http://bit.ly/big_battery (10% coupon 'Powerwalls')
Tim De Groot NL https://ebay.to/2OX9koS
Power 2 Spare USA  https://ebay.to/2SuJWsr
Pro-LOX Netherlands  https://ebay.to/2HsyPKr
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