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https://reneweconomy.com.au/battery-price-war-sees-tesla-powerwall-2-beaten-even-before-first-deliveries-44252/

Powerwall 2 is beaten before it even arrives (according to this author)

The Tesla Powerwall 2 got a lot of press when it was announced at a retail price of $8,000 for 13kWh of storage. It currently offers a cost-per-warranted-kWh of $0.21. First installs were originally promised for February, then March, as of this week the Tesla Website has stopped giving an estimated install date. Read into that what you will…

Ampetus Energy

A relatively unknown Australian company, Ampetus Energy, have released a 3kWh “Super Lithium” battery retailing for $2,300 This is available to ship right now and beats Tesla with a cost-per-warranted-kWh of $0.19. This is mainly due to their 15 year warranty, which is also the best in the industry.

Before Ampetus, the longest product warranty for a battery that we saw was 10 years – so they must be very confident in their product.

https://www.solarquotes.com.au/blog/tesla-powerwall-2-vs-ampetus-super-lithium/

The 15 Year Warranty Is Not On The Ampetus Site
I have been assured their “Super” Lithium battery will come with a 15 year warranty, and on their site they clearly state in large letters with an exclamation point after them:
“15 year warranty!”
But if you go to the Ampetus site and download their warranty document you will see it is only for 10 years. So be certain to get a 15 year warranty in writing from them before you buy.
 

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Interesting. I wonder if Tesla is going to do a better job of supplying the PowerPacks. If those aren't delivered on time, Tesla is putting them in for free.

As for the Ampetus Energy, I wonder if 3 kWh is sufficient to do anything other than peak shaving.
 
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