Batteries > Powerwall 2 (AC)

Powerwall 2 (AC) by Tesla
Powerwall 2 (AC)

Powerwall 2 (AC) Details

Shown in the table below are the key characteristics of the battery in question.

Note: We would strongly advise you double check the specifications of the battery and warranty conditions in detail before you purchase to determine its suitability for your usage case, as things do change and often without much notice.

Product Name
Battery Chemistry
All in One Unit
Estimated Price
Nominal Capacity
13.20 kWh
Usable Storage Capacity
13.20 kWh
122.00 kgs
Steady Power
5.00 kWh
Peak Power
7.00 kWh
Dimensions (WHD)
115.0cm x 75.0cm x 15.0cm
Cycle Life
TBD @ 100% DoD
Round Trip Efficiency
Can be used Off Grid
Can install indoors
Can install outdoors
Operating temperature range
-20℃ to 50℃
Supports 1 Phase
Supports 3 Phase
Internet Capable
Warranty Document
10 years, or 37,800 kWh. Whichever is first.
Total warranted kWh
37,800 kWh
(0.8 cycles/day)
Cost per warranted kWh
(unlimited cycles per day)
$0.23 per kWh
(0.8 cycles/day)
Cost per warranted Kwh
(exactly 1 cycle per day)
$0.19 per kWh
(beyond warrantied usage)
Storage density
by weight
0.11 kWh per kg
Storage density
by volume
102.03 Kwh per m³

Battery Pros

Long Warranty
Warranty is 10 years or over, which shows commitment to their product.
10 kWh or more of usable storage
Typical household usage requires at least 10 kWh of power storage to be useful, this has it in the one unit.
Cheap warranted per kWh cost
Your in warranty cost is less than $0.30 per kWh.
Full Depth of Discharge
All the battery capacity is available for you to use.

Battery Cons

Low Round Trip Efficiency
Loosing more than 10% in power in a charge/discharge cycle. Requires more charging power than a more efficient system for the rated output. You need to take this into account when working out the true costs.

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