Lexus RX hybrid (400h/450h) battery replacement cost

Published quotes for a replacement Lexus RX hybrid (400h/450h) battery run $6,872 to $7,117, about $3,681 per kWh of pack (#19 of 19 models, cheapest first). The battery warranty is 10 years or 150,000 miles.

Replacement cost quotes

The headline range and the index use new-pack quotes only; used, remanufactured, single-module and unverified prices are listed for reference.

CostWhat it coversYearSource
$6,872–$7,117RepairPal average installed cost, RX 450h high-voltage battery replacement (parts + labor)
“The average cost for a Lexus RX450h Hybrid High Voltage Battery Replacement is between $6,872 and $7,117.”
2026repairpal.com

Pack size

VersionCapacitySource
RX 450h 2010 NiMH1.9 kWhguideautoweb.com
RX 450h 2021 NiMH1.9 kWhguideautoweb.com

Battery warranty

10 years or 150,000 miles. Applies from MY2020; earlier model years 8yr/100k. Source: pressroom.lexus.com “it will extend its Hybrid Battery Warranty from 8 years / 100,000 miles to 10 years from date of first use/150,000 miles, whichever comes first”

Used and remanufactured modules on eBay

No single Lexus RX hybrid (400h/450h) modules with a stated capacity are listed on eBay right now.

Shop used Lexus RX hybrid (400h/450h) packs and modules on eBay →

Common questions

How much does it cost to replace a Lexus RX hybrid (400h/450h) battery?

Published quotes for a new Lexus RX hybrid (400h/450h) battery run $6,872 to $7,117. That is about $3,681 per kWh of pack, #19 cheapest of the models we track.

What happens when the Lexus RX hybrid (400h/450h) battery warranty ends?

The Lexus RX hybrid (400h/450h) battery warranty is 10 years or 150,000 miles. Applies from MY2020; earlier model years 8yr/100k. After it ends you pay for a replacement yourself: $6,872 and up for a new pack from the quotes above.

Other models

Figures are as published by the cited sources; check with a dealer or EV battery shop before you decide. eBay and Amazon links are affiliate links; we may earn a commission.