Sell your used Tesla Powerwall 3
A used Tesla Powerwall 3 holds 13.5 kWh with a solar inverter built in, and up to three Powerwall 3 Expansion units can join it. We buy both, and the form brings a written offer back by email. Say yes, and our engineer disconnects the Powerwall 3 and every Expansion with it, then we collect them free.
An independent buyer. Not affiliated with, or endorsed by, GivEnergy, Tesla or any other manufacturer.
- Capacity
- 13.5 kWh
- Power
- 3.68 to 11.04 kW
- Height
- 1,105 mm
- Weight
- 130 kg
Source: Tesla, Powerwall 3 datasheet (UK, 2026).
Signs yours is a Powerwall 3
- 1,105 mm tall, 609 mm wide and 193 mm deep. It weighs 130 kg.
- The T logo on the front lights white while it is working.
- The on/off switch is on the left-hand side, and a DC isolator sits at the top of the right-hand side.
- A sticker on the left-hand side carries the serial number, with POWERWALL 3 and a part number starting 1707000.
- In the serial number, digits 4 and 5 give the year it was made and digits 6 to 8 the day of the year.
- Three solar inputs, so panels can be wired straight into it.
The wider, flatter cabinet in the drawing is a Powerwall 2, 753 mm across.
Tesla's UK page dates the Powerwall 3's release to September 2023.
What joins a Powerwall 3
| Unit | Works with a Powerwall 3? | Notes |
|---|---|---|
| Powerwall 3 Expansion | Yes | Up to three per system, on the leader Powerwall 3. |
| Powerwall 2 | No | Tesla says a Powerwall 3 can't be added to a Powerwall 2. |
Where a system has more than one Powerwall 3, its Expansions connect to the one Tesla calls the leader.
Sizes of the Powerwall 3 and the Expansion
| Model | Height | Weight | Works with |
|---|---|---|---|
| Powerwall 3 | 1,105 mm | 130 kg | Powerwall 3 Expansion |
| Powerwall 3 Expansion | 1,105 mm | 118.5 kg | Powerwall 3 |
An Expansion has the same height and width as the Powerwall 3 but is 25 mm slimmer, with no on/off switch and no status light.
Its installer set the Powerwall 3's output when it went in, at one of eight ratings from 3.68 to 11.04 kW.
Panels wired into a Powerwall 3
Its three solar inputs let panel strings run straight into the cabinet, without a separate solar inverter.
Lifting a Powerwall 3 with Expansions
The Powerwall 3 itself is 130 kg, and every Expansion with it is a separate lift.
Tesla's UK datasheet says Expansions stacked behind a Powerwall 3 go on the floor only.
Once you've accepted our written offer and sent us the app screenshots, take the Powerwall 3 off your Tesla account ahead of the day we book.
Units already taken out can be brought to our base in Bradford or London instead, by appointment.
Every Powerwall 3 and Expansion you're selling
"Powerwall 3" is picked for you. Then say how many you're selling, and how many Expansions go with them.
What's a used Tesla Powerwall 3 worth?
We don't publish a price list. A Powerwall 3 and any Powerwall 3 Expansion units with it get a written offer of their own, worked out from how hard the system has worked by the Tesla app's own figures, and from where it is fitted. Add the screenshots from your Tesla app to the form if you've got them.
Before we collect
- Before we collect a Powerwall, we ask for screenshots from your Tesla app and a photo of the label on each unit.
- The screenshots we need are the app's home screen with any message showing, 'Settings' then 'My Home', and the Powerwall graph under 'Energy' for a recent day and for 'Lifetime'.
- They show us what's fitted, how it has been used and whether the app is showing an alert.
- If the screenshots, or the kit on the day, differ from your description, we may send you a new offer, or withdraw ours, and you're free to walk away at no cost.
Please don't take it off the wall yourself
A Tesla Powerwall's DC system runs at up to 450 V DC inside, and it's wired into your mains supply. A Powerwall 3 also takes solar panel strings at up to 550 V DC. Switching it off doesn't make the battery safe, so our engineer isolates the system before anything is moved. If your installer has already disconnected it, say so on the form.
Your written offer
Free collection, mainland England and Wales · Disconnection included · Written offer, no obligation · Reply within 48 hours
Step 1 of 3
Questions on selling a Powerwall 3 system
Do you buy a Powerwall 3 Expansion?
Yes. An Expansion works only with a Powerwall 3, and one system takes up to three, so put every unit on the form. Each holds 13.5 kWh and weighs 118.5 kg with its glass front cover and bracket.
Will my solar panels keep working if I sell my Powerwall 3?
Not if they're wired into it. A Powerwall 3 has a solar inverter built in, with three solar inputs, so panels wired into it stop when it goes, until a replacement inverter is fitted. If your panels run through a separate inverter, they keep generating.
How old is my Powerwall 3?
The serial number says. It's on the sticker on the left-hand side. Digits 4 and 5 are the year it was made, and digits 6 to 8 the day of that year.
Back to the Tesla Powerwall page.