Tesla Cybertruck Range Extender: Battery Size, Range, Price and Specs

At the Cybertruck event, Tesla showed off the Cybertruck’s extended battery, an optional accessory permanently mounted to the truck’s bed. This was Tesla’s solution to keeping the truck price as low as possible while also giving owners a chance to get close to the truck’s original range of 500 miles.
The Range Extender is engineered to boost the Cybertruck's mileage substantially, increasing the truck’s total range by about 35%.
Tesla's Range Extender is a departure from traditional range-extending methods, often involving gasoline generators. Its design, occupying roughly a third of the truck bed, strikes a balance between added functionality and maintaining the truck’s cargo space. It addresses range limitations and makes the Cybertruck more suitable for towing and long-range trips.
Range / Battery Size
The Ranger Extender extends the Cybertruck total range by 120 miles (193 km). For the Cyberbeast, it’ll take the truck’s range from 320 miles up to 440, whereas for the AWD version, the range will be increased from 325 miles to 445 miles.
These are Tesla’s latest numbers, which have been reduced slightly from Tesla’s original estimates that the Ranger Extender pegged at adding 130 miles.
The Ranger Extender uses a huge 47 kWh battery pack, which explains why it takes up a significant portion of the truck’s bed. For comparison, Tesla’s Standard Range+ Model 3 has a 54 kWh pack, capable of driving about 260 miles.
Price
Though official pricing for the Range Extender has yet to be officially announced, it looks like it’ll be priced at a hefty $16,000 USD. The night the Range Extender was revealed, code was found on Tesla’s website that showed off the $16,000 price tag. However, it’s not clear whether this price was a placeholder or if the price will change before it becomes officially available.
Size & Weight
The Ranger Extender fits perfectly alongside the back of the Cybertruck’s bed. Instead of being laid evenly across the bottom of the bed, it’s nestled up against the cabin, making it easier to load items into the truck.
Elon Musk elaborated on the Range Extender's functionality: "It's an optional pack that fits in about 1/3 of the truck bed. There is still room for plenty of cargo. It's meant for very long trips or towing heavy things up mountains."
With a battery pack of 47 kWh, the Range Extender isn’t going to be something light. The Cybertruck’s “battery pack” is estimated to weigh about 600 to 650 lbs (272 kg to 294 kg), which also means that it’ll reduce the truck’s towing capacity by that much.
Installation
A few Cybertruck owners have discussed a marketing idea for the range extender would be to rent it out. Cybertruck owners could rent it for a weekend trip or an extended holiday camping. It's unlikely that Tesla will take on that business, but it is an idea for when more Cybertrucks are around and need that extra range.
Unfortunately, the Cybertruck Range extender is not something that could be easily removed or added, mostly due to its weight. Tesla has said that the Range Extender will need to be installed by Tesla Service and it’s a “permanent” install. We imagine it could also be removed at a later date, but it’s not something you could just do on your own when you don’t need it.
Unfortunately that means that owners will have to choose between additional range or cargo room. If you use the truck mostly for towing, the reduced cargo space may not be a big deal, but for other owners that use their truck for a variety of tasks, it could be a deal breaker.
—
Some Cybertruck owners have suggested renting the Range Extender for weekend trips or extended camping holidays.
However, the Cybertruck’s range extender isn’t designed for easy removal or installation, primarily due to its weight and high-voltage connections. Tesla has stated that installation must be performed by Tesla Service and is considered a “permanent” modification. While removal may be possible later, it won’t be something owners can easily swap in and out as needed.
This means Cybertruck owners will have to choose between additional range or cargo space. For those who use the truck primarily for towing, the reduced cargo capacity may not be a major issue, but for owners who use their truck for a variety of tasks, it may not be an easy decision.
Availability / Release Date
The Range Extender was initially expected to be available for pre-order customers in early 2025, but that timeline has now slipped to mid-2025. Given Tesla’s ambitious production goals this year, it wouldn’t be surprising if it gets pushed even further, possibly into 2026.
One potential reason for the delay is Tesla’s ongoing work on perfecting its dry-cathode battery process. Since the Range Extender is a low-volume product, Tesla may be prioritizing it as a testbed for dry-cathode cells before scaling them to full vehicle production. Unlike an entire truck, a battery pack like the Range Extender is easier to replace or refine if necessary.
In the meantime, Tesla is likely focused on the Cybercab and its next-generation vehicle. The Ranger Extender is expected to use the same 4680 battery cells as the Cybertruck, so Tesla will also want to ensure it has sufficient supply for vehicle production before producing the Range Extender.