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16 Apr 2020

Tesla Powerwall Home Battery System

By Lynn
  • Read time: 3 minutes
Over the years, technology has blossomed tremendously. Alternative energy sources have gained popularity in the market. The Tesla battery systems are one of the alternative energy sources that have gained root in our present market. By the end of this article, you will have acquainted yourself with more information regarding the Tesla power wall systems. Without any further ado, let’s get sailing. Don’t be left behind.

What is Powerwall

Well, the Tesla Powerwall is a lithium battery system manufactured by the Tesla Energy company. The battery system has made an efficacious effect in our present every increasingly renewable world today. Despite the manufacturing of various solar batteries, Tesla has stood out to be unique. The rudimentary version was released about six or seven years ago.

The initial versions of the Tesla systems had a 6.4kWh capacity and had a DC-coupled battery of high voltage. The second-generation Powerwall had double the capacity, and it was in the same price range as the first Powerwall model, not forgetting it had an inbuilt charger/inverter.

Features of Powerwall

Tesla Powerwall is the cheapest battery per k/Wh on the market.

Solar self consumption
Powerwall works seamlessly with your Solar PV system.

Tesla app
The Tesla app allows you to control Powerwall from anywhere.

Grid independence
With Powerwall, you never need to rely on the energy grid again.

Weather proof
Powerwall 2 can be installed outside as it is resistant to most weather conditions.

Tesla Battery Inverter

As mentioned earlier, Powerwall 2 comes with an inverter. The inverter assists in changing the energy from AC to DC. This model’s inverter is generally powerful since it has a continuous output of 5kW, not forgetting the 7kW peak output. Powerwall 2 generally is an AC battery.

Since this model has an inverter with high power input, the Powerwall can power a house running several appliances that are high powered simultaneously. The previous Powerwall version had a DC output of 3.3kW, which is much lower.

Tesla Powerwall 2 Warranty

Tesla offers a 10-year manufacturer’s warranty as standard with every Powerwall 2. This warranty period is higher compared to the previous Powerwall version warranty. The capacity of all batteries mitigates as they are continuously charged and discharged. The 10-year warranty covers up to 70% of the retained battery capacity. The difference between Tesla’s warranty and other competing brands is that all components within the Powerwall are manufactured by Tesla themselves and therefore can easily be covered.

Other features

Liquid cooling

Tesla is the pioneer of incorporating liquid-cooled batteries into the present market. The liquid cooling feature can operate in a vast range of temperatures ranging from 20°C to 50°C. The liquid cooling feature enables the Powerwall 2 to release additional power more so in high charging conditions. This will result in higher durability and more exceptional performance, more so in high temperatures.


Powerwall will work effortlessly with Solar PV and EV chargers alike. You have full control over how Powerwall uses the energy stored from your Solar PV, whether it be to power your home, your car or selling it back to the grid, the Tesla app allows you to do this remotely from anywhere.

Tesla energy plan

The Tesla Powerwall is one of the requirements for the recently announced Tesla energy plan. Find out more about the Tesla energy plan >

Tesla battery cells

Tesla Powerwall uses the Lithium NMC (Nickel-Manganese-cobalt) battery cells. The battery cells are designed in coopetition with the Panasonic company. This is the same kind of batteries used in the Tesla electric vehicles.

The 2170 version of battery cells is mostly used in the Powerwall 2. If we compare the first Powerwall and the Powerwall 2, there is a significant difference between them. The Powerwall 2 has a simpler installation process; it is easier to handle, and not forgetting it is compact.

Due to its battery cells, Powerwall 2 weighs roughly 120kg. Powerwall 2 can either be mounted on the wall or even be ground-mounted. You should install Powerwall 2 in a sheltered place and keep it out of direct sunlight.

Powerwall 2 monitoring application

Tesla has developed a monitoring application that is compatible with all Powerwalls. The application is used to control the power flow from your Powerwall. The system can be accessed from anywhere with an internet connection. The 24/7 mobile monitoring feature has made it easier for individuals to note any defects with their Powerwall.

Automatic Charging

Unlike other battery systems that require manual charging configuration, the Powerwall has the automatic charging feature. This feature aids the Powerwall to detect when it has low power and automatically charges itself using solar.

Once the battery system is adequately charged, it will automatically turn off the charging. Tesla battery systems have made a positive impact in mitigating dependence on fossil fuels.

Tesla Powerwall 3

The Tesla company is yet to manufacture the Tesla Powerwall 3 version. The company has, however, not announced the exact date when the Powerwall 3 will be released. It is no doubt that the Tesla Powerwall 3 will be an advancement of Powerwall 2.



Tesla Powerwall 2 is a huge advancement from the original Powerwall, which has many features to enhance the durability and efficiency of the battery system. Powerwall 2 comes with an inverter to change AC to DC. Powerwall 2 is the first battery system in the market to incorporate the liquid cooling feature.

The monitoring of the battery system has been made easy since it has a monitoring app that can be accessed from all over the world.

If you are looking for the best battery system in the market, consider purchasing Powerwall 2, and you will enjoy enhanced durability and high performance with a meaningful warranty.

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Written by Lynn

Writes blogs about EV charging and climate solutions for 50five.