Tesla Powerwall 2 Installation Manual page 8

Powerwall Identification
Newer Powerwalls have slightly different dimensions for mounting-bracket height. Powerwalls may be easily
identified by part number and by comparing the back of the Powerwall (see
1092170-XX-H and lower
2012170-XX-B and lower
Figure 2: Powerwall 2 Identification by Mounting Bracket Height
Powerwall Optimum Temperature Range
Powerwall is rated to operate in temperatures from 4°F to 122°F (-20°C to 50°C). However, for best
performance Tesla recommends installing Powerwall in locations with ambient temperature between 32°F
and 86°F (0°C to 30°C) year round. When outside this recommended temperature range, charge/discharge
power may be reduced and Powerwall will utilize its thermal control system more frequently to maintain
battery cell temperature which will reduce the energy efficiency of the system. Systems operating off-grid
for long periods (>4 hours) in cold weather systems may need to curtail PV, and reduce energy used for pre-
conditioning.
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For cold climates, Tesla recommends installing Powerwall indoors when possible (particularly when
long outages are expected).
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For hot climates Tesla recommends keeping Powerwall out of direct sunlight. Installation in full sun
raises the temperature inside the enclosure above ambient temperature. This temperature rise is not a
safety risk, but may impact battery performance.
Additionally, if stored in a cold environment (e.g. below 0°C) before installation, it may take several hours for
Powerwall to raise its internal temperature using pre-conditioning. Tesla recommends storing Powerwalls in a
warm location prior to installation to help efficiently commission and test the system.
Powerwall 2 AC Installation Manual
Figure 2).
1092170-XX-J and higher
2012170-XX-C and higher
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