What Are The Tesla Powerwall 2 Specifications?

The Tesla Powerwall 2 is a 13.5 kWh lithium-ion (NMC) home battery with 5kW continuous/7kW peak power output, designed for solar storage and backup. It operates at 90% round-trip efficiency, measures 1150 x 753 x 147 mm, and weighs 120 kg. With a 10-year warranty, it supports daily cycling at 100% depth of discharge (DoD) and integrates seamlessly with solar inverters and grid systems.

How to Replace the Battery in a CAME Gate Remote: Step-by-Step Guide

Wholesale lithium golf cart batteries with 10-year life? Check here.

What is the energy capacity and chemistry of the Powerwall 2?

The Tesla Powerwall 2 stores 13.5 kWh using nickel-manganese-cobalt (NMC) cells, with 100% usable capacity (13.2 kWh after 98% DoD). Its chemistry balances energy density and thermal stability, ideal for daily cycling. Pro Tip: Pair with solar to offset grid reliance—excess energy stored during daylight powers nighttime loads.

NMC batteries excel in high-cycle applications due to their layered oxide structure, which minimizes capacity fade. The Powerwall 2’s 13.5 kWh capacity suits average homes consuming 20–30 kWh daily. For example, a household using 10 kWh nightly would retain 3.5 kWh for emergencies. But what if your energy needs spike? The system’s continuous 5kW output handles most appliances, though simultaneous high-load devices (e.g., AC + EV charger) may require multiple units. A table comparing the Powerwall 2 to competitors highlights its advantages:

What power output can the Powerwall 2 deliver?

The Powerwall 2 provides 5kW continuous and 7kW peak power for 10 seconds, supporting split-phase 120/240V systems. This suits HVAC units and well pumps but requires load management for sustained high draws.

Split-phase output allows the Powerwall 2 to power 240V appliances like electric dryers directly. However, continuous 5kW means it can’t simultaneously run a 3.5kW AC unit and a 2kW water heater without tripping. Practically speaking, households with peak demands exceeding 7kW should install multiple units. For instance, a home with a 5kW solar array and 7kW surge needs can rely on one Powerwall 2 for backup but may need two for uninterrupted heavy loads. Here’s how it stacks up against competitors:

Want OEM lithium forklift batteries at wholesale prices? Check here.

How efficient is the Powerwall 2?

The Powerwall 2 achieves 90% round-trip efficiency, losing 10% during charge/discharge cycles. Its built-in inverter operates at 97% efficiency, outperforming many AC-coupled systems.

Efficiency drops slightly in extreme temperatures. For example, at -20°C, losses increase to 15% due to battery heating. Beyond specs, real-world performance depends on installation. A well-ventilated, shaded location maintains optimal thermal management, while direct sunlight can reduce efficiency by 3–5%. Imagine storing 10 kWh from solar—only 9 kWh becomes usable. Comparatively, lead-acid batteries offer 70–80% efficiency, making the Powerwall 2 a superior choice for renewable integration.

What Is the Best Battery Powered Generator?

What are the installation requirements?

The Powerwall 2 weighs 120 kg and requires 1150 x 753 x 147 mm of wall space. It operates from -20°C to 50°C and needs 700 mm front clearance for maintenance.

Installation costs vary by region but average $3,000–$7,000 including labor. Wall-mounted units must anchor to studs or concrete—drywall alone can’t support the weight. For example, a garage install near the electrical panel minimizes wiring costs, while outdoor setups need waterproof enclosures. But what if space is limited? Tesla’s stacking kit allows vertical placement of up to three units. Always hire certified installers to ensure compliance with local codes and warranty terms.

What Are The Dimensions Of Powerwall 2?

The Tesla Powerwall 2 measures 1150 mm (45.3 in) high, 753 mm (29.6 in) wide, and 147 mm (5.8 in) deep. Its compact size makes it suitable for both indoor and outdoor installation with a sleek, space-saving design.

How Large Is The Powerwall 2 Unit?

The Powerwall 2 is 45.3 inches tall, 29.6 inches wide, and 5.8 inches deep, weighing about 114 kg (251 lbs). Its slim and compact size allows easy wall or floor mounting without taking up much space.

The Powerwall 2 measures 45.3 inches tall, 29.6 inches wide, and 5.8 inches deep, with a weight of approximately 114 kg (251 lbs). Despite its substantial weight, the unit is designed to be sleek and compact, making it easy to install either on a wall or on the floor. Its slim profile ensures it doesn’t take up much space, allowing homeowners to integrate it seamlessly into garages, utility rooms, or even outdoors without disrupting the aesthetics of their home environment. The clean, minimalist design also reflects Tesla’s focus on combining functionality with modern style.

In addition to its size, the Powerwall 2 is built with a durable, weather-resistant casing that protects it from harsh environmental conditions, enabling reliable outdoor installation. This flexibility in placement means it can be positioned wherever it best suits the homeowner’s needs, whether inside or outside. The unit’s manageable dimensions and thoughtful design make it a practical and efficient energy storage solution that fits comfortably in most residential spaces, providing powerful backup or solar energy storage without overwhelming the area.

Why Are Powerwall 2 Dimensions Important For Installation?

The dimensions of Powerwall 2 are important to ensure it fits the available installation space. Its slim profile offers flexible mounting options and helps meet clearance and safety requirements for efficient, safe, and convenient placement.

The dimensions of the Powerwall 2 play a crucial role in ensuring it fits perfectly within the available installation space. Its slim and compact profile allows for versatile mounting options, whether on a wall or on the floor, making it adaptable to a variety of home layouts and spaces. This flexibility is especially important in homes with limited room, such as small garages or utility closets, where maximizing space is essential. Proper sizing also helps installers comply with clearance and safety requirements, ensuring there is enough room around the unit for ventilation, maintenance, and safe operation.

Moreover, the right dimensions contribute to the efficiency and convenience of the installation process. A Powerwall that fits well reduces the need for costly modifications or custom mounting solutions, speeding up setup time. Its manageable size also makes it easier to handle during installation, minimizing disruption to the household. Ultimately, the carefully designed dimensions of the Powerwall 2 ensure it can be seamlessly integrated into a home’s energy system, providing reliable power storage without compromising space or safety.

RackBattery Expert Insight

FAQs