Batteries | Drivetrain | Community | Reviews
About the Lexus RX450h
The Lexus RX450h debuted in the US as a 2010 model and ended production in 2022 in favor of the Lexus RX 450H+ which debuted as a 2023 model.
| Year Range | 2010-2022 | 2023+ |
| Horsepower | 308 hp | 246 hp @ 6000 RPM |
| Torque | 247 lb-ft 335 N-m | 233 lb-ft 316 N-m |
| Battery | 288V Sealed Nickel Metal Hydride (NiMH) | 259.2V Sealed Nickel Metal Hydride (NiMH) |
| Gasoline Engine | 3.5 liter V6 (2GR-FXS) | 185 hp Inline 4-cylinder (I4) Atkinson cycle |
| Transmission | eCVT (P313) | eCVT (P810/Q610) |
| Electric Motors | 1x 650V Generator Motor 1x 650V Front Drive Motor 1x 650V Rear Drive Motor (AWD Models) | 2x Permanent Magnet Synchronous Motors |
| MPG | 30 combined 28 highway 30 city | 36 combined 46 highway 37 city |
| Towing Capacity | 3,500 lbs (tow package) | 3,494 lbs (with brake) 999 lbs (without brake) |
| Curb Weight | 4,740 lbs | 4,365 lbs |
| 0 to 60 mph | 7.9 seconds | 7.4 seconds |
| Top Speed | 112 mph 180 km/h | 112 mph 180 km/h |
Lexus RX450h History
At one point, a Lexus RX450h was retrofitted by Google for its driverless car fleet.
Lexus RX450h Battery Specifications
Hybrid Drive Battery
Lexus RX450 Drive Battery Specs
| Year Range | 2010-2022 | 2023+ |
| Battery Type | Sealed Nickel Metal Hydride (NiMH) | Sealed Nickel Metal Hydride (NiMH) |
| Battery Voltage | 288V | 259.2V |
| Battery Capacity | 6500 mAh | 18 kWh |
| Battery Cell Count | – | 216 |
Lexus RX450h Replacement Drive Battery on eBay
How long does a Lexus RX 450h drive battery last?
In most scenarios, a RX450h Hybrid battery can be expected to last somewhere in the range of 100,000 too 200,000 miles. That said, if you buy your RX450h new, Lexus will typically honor a hybrid battery warranty that is good for 10 years or 150,000 miles, whichever comes first.
How much does a Lexus RX 450h replacement battery cost?
A typical replacement or remanufactured battery for the 2010-2022 Lexus RX450h can cost upward of $7000. There are multiple options available listed at a lower price point, but this is a safe number to expect when you factor in shipping and tax.
The 12V accessory battery from a Lexus RX450h can cost anywhere from $150-400 to replace, not including labor.
Where to Find an Electric Car Battery Replacement for the Lexus RX450h
Finding an electric car battery replacement can be difficult, but it doesn’t have to be.
Wrecking Yards – Your local wrecking yard can be a good option for finding replacement battery packs. Car-part.com can help you find used batteries for your vehicle:
There are also options for purchasing replacement batteries for your RX450h online.
eBay – eBay has some great deals, while giving you the tools you need to shop from reputable vendors.
RX450h Replacement Batteries on eBay
LexusPartsNow.com – From drive batteries to control modules to every other part your Lexus needs, check out the shop dedicated solely to Lexus parts.
LexusPartsNow.com: Lexus RX 450h Batteries
Best Hybrid Batteries – Recommended by one of our site visitors, Best Hybrid Batteries is based out of Shorewood, IL and has a mission to build “Only The Best” hybrid battery packs for their customers each time.
BestHybridBatteries.com: 2010-2014 RX450h
BestHybridBatteries.com: 2015-2019 RX450h
Electron Hybrid Solutions – EHS has replacement batteries and battery parts available for your Lexus RX450h and promises excellent customer service, warranties, and free shipping options for complete batteries
ElectronHybridSolution.com: RX450h
GreenBean Batteries – “Born out of the need for a better hybrid battery, Green Bean Battery was built around the core of creating a reliable reconditioned hybrid battery and extending the hybrid battery life. Since our humble beginnings, we have grown to create a proprietary hybrid battery reconditioning process that puts our hybrid batteries in a league of their own.”
GreenBeanBattery.com: Lexus RX 450h (2010-2015)
GreenTec Auto – Established in 2012, with 3 brothers working at their father’s auto repair shop, GreenTec Auto’s mission is to create effective and sustainable solutions for you and your vehicle. “Nothing ends up in a landfill.” With over 20 service centers across the United States, there is sure to be a location near you.
GreentecAuto.com: Lexus RX 450h
Hometown Hybrids – Specializing in replacing your failed hybrid battery pack at a reasonable cost. Whether you choose a new or rebuilt battery, you can count on their mobile installation service to deliver the best product at a great price.
HomeTownHybrids.com: Batteries
Where to find individual replacement battery cells for the Lexus RX450h?
For the RX models, there are a few options available to source individual battery cells. Replacing these cells is sometimes just what a malfunctioning RX hybrid needs to perform optimally again. Take a look at the options below to see if they fit your needs:
| Manufacturer / Description | Where to Find Them |
| OEM Toyota Reconditioned by HybridCPR | Amazon |
| Electron Hybrid Solutions Battery Rebuild Kit | Electron Hybrid Solutions |
What to expect when purchasing a replacement battery for your Lexus RX450h Hybrid
The process for purchasing a replacement battery for your hybrid can include a few surprises:
- Core Charges – A “core charge” is where a vendor charges you a fee as collateral until you send them the part that you are replacing, in this case the battery pack. It is not unusual to see a core charge be the same price as your used battery, typically around $1000-3000.
- Shipping Charges – Batteries are heavy! You can’t exactly toss one in the mailbox. Some vendors will include the cost of batteries in your purchase. Others may charge you anywhere from $100 to $300 to ship. You may also be assessed an additional charge to deliver to a residential address.
- Packaging – If you need to ship your battery to a vendor, you may want to consider the cost of packaging. Typically if you are returning a core, you can simply put your old battery in the same packaging that your replacement battery came in, and ship it back. Be extra careful when packing your battery as most vendors require a core battery to be able to be refurbished, and you may not receive back your core charge if the battery is damaged in transit.
Where is the drive battery located in the Lexus RX450H?
The drive battery for the Lexus RX450h is located under the floor of the vehicle.
12V Battery
Lexus RX450h 12V Battery Specs
A typical 12V aux battery only lasts between 4 to 7 years and will require replacement as the available power decreases over time and use. Here is some information that may help you find a replacement battery for your RX450h:
| RX450H Year Range | 2010-2014 | 2015-2021 |
| 12V Battery Type | AGM | AGM |
| Group Size | Group 35 | Group 47 (H5/L2) |
| OEM Part Number | 28800-31290 | 28800-36131 |
| Cold Cranking Amps (CCA) | 600CCA | 600CCA |
| Battery Weight | 31.5 lbs | – |
| Terminal Type | SAE – Type A | SAE – Type A |
| Dimensions | 15.5 x 13.8 x 12.5 inches | Width: 6.94″ Length: 9.56″ |
| Reserve Capacity | 100min | 100min |
| Where to Purchase? | Amazon | Amazon, LexusPartsNow |
2010-2014 Lexus RX450h Batteries on Amazon
2015-2022 Lexus RX450h Batteries on Amazon
Where is the 12V battery located in the Lexus RX450h?
The battery for the RX450h can be located in the rear of the vehicle, under the rear floor, to the left of the spare tire.
What does a POA80 code mean in a Lexus RX450h?
If you are receiving a POA80 DTC code from your OBDII reader or diagnostic software in your Lexus RX450h, it may be time to consider a new battery. You can use a battery tester to help verify the health of your battery.
Highly-Rated 12V Battery Tester on Amazon
Lexus RX450h 12V Battery Replacement Instructions
If you’re looking to install a replacement 12V battery in your Lexus RX450h, take a look at these instructions first:
- Lift the floor mat in the rear area of the trunk
- Using a 10mm socket wrench, remove the retainer holding in the battery.
- Remove the vent host at the side of the battery and lay aside.
- Using your 10mm socket, loosen the negative battery terminal (you do not need to remove the nut) and remove the terminal from the battery post.
- Using your 10mm socket, loosen and remove the positive battery cable the same way.
- Carefully lift out your old battery
- Installation is the reverse of removal.
Lexus RX450h 12V Battery Terminal Maintenance
Maintaining your Lexus RX450h 12V battery terminals is essential to ensuring a positive electrical contact. We recommend cleaning terminals and using a terminal protectant spray to prevent corrosion on your battery terminals.
CRC Battery Cleaner w/ Acid Detector will clean your battery terminals and surface, neutralizing acids and detecting leaks.
CRC Battery Terminal Protector Spray is designed to protect battery terminals from corrosion, a leading cause of hard starting and battery failure.
Lexus RX450h 12V Battery Testing, Maintenance and Repair
Battery testers are an inexpensive way to save yourself time in repairing your Lexus RX450h. A healthy 12V battery will read between 12.6 and 12.8 volts when tested. Anything lower, and you may want to consider replacing your batteries or checking the battery fluid levels.
Highly-Rated 12V Battery Tester on Amazon
Key Fob Battery
2016-2022 Lexus RX450h Key Fob Battery
The 2016-2022 Lexus RX450h key fob battery uses a CR2032 3V lithium battery.
Find CR2032 3V Lithium Batteries on Amazon
2010-2015 Lexus RX450h Key Fob Battery
The 2010-2015 Lexus RX450h key fob battery uses a CR1632 3V lithium battery.
CR1632 3V Lithium Batteries on Amazon
Lexus RX450h Drivetrain Specifications
The 2010-2022 Lexus RX 450h is available in both 2WD and part-time AWD, with the AWD system returning slightly poorer fuel economy. All Lexus RX models employ a double-wishbone rear suspension.
The 2023 Lexus RX450h+ comes standard with all wheel drive (AWD).
Drivetrain FAQs
What type of gasoline is used in a Lexus RX450h?
The Lexus RX450h+ requires the use of premium unleaded gasoline, and recommends 95 octane or higher.
Lexus RX450h Reviews
For a look at the 2023 Lexus RX450h+, check out Kirk Kreifels’ excellent review and breakdown.
Check out this Kelley Blue Book review on the 2021 Lexus RX 450h
For a look at what a 2015 Lexus RX450h is like, check out this YouTube review
How to reduce throttle Lag in a Lexus RX450h
If you are experiencing throttle lag in your Lexus RX450h, it might not be your battery. It might simply be the way the car is configured from the factory.
One way to eliminate throttle lag would be to use a “Pedal Commander” to make the vehicle more responsive when you press on the accelerator.
A pedal commander has the following benefits:
- Faster acceleration
- Multiple configuration options
- Eco-mode, for up to 20% additional fuel savings
- Plug and play installation, bluetooth
- Will not void your warranty
Lexus RX450h Pedal Commander on Amazon
Join a Lexus RX450h Community
ClubLexus.com – The #1 Lexus community’s RX sub-forum. Join in on conversation around your favorite Lexus models.
LexusRXOwners.com – Lexus RX Community and Owner’s Club
LexusOwnersClub.com – Lexus RX300 / RX330 / RX350 / 450h / F-Sport Club discussion, troubleshooting, maintenance upgrades and other community discussion
LexusEnthusiast.com / Lexus RX – Upgrades, troubleshooting, photo sharing, and general discussion about the Lexus RX lineup.