Hybrid Battery Test

NiMH

Toyota RAV4 Hybrid 2016-2018 (AVA44) Hybrid Battery

The Toyota RAV4 Hybrid 2016-2018 (AVA44) Hybrid Battery is the high voltage battery in the Toyota RAV4 Hybrid (2016-2018).

At a Glance

  • NiMH chemistry
  • 244.8 volts nominal
  • 34 modules
  • air-cooled; battery cooling blower cooled

Specifications

ChemistryNiMH
Cell formatprismatic
Nominal voltage244.8 V
Modules34
Module voltage7.2 V
Coolingair-cooled; battery cooling blower
Locationcabin area under the rear seat

Cars That Use It

What Goes Wrong

Reported failures, each from a source listed below, as of October 7, 2026.

  • Toyota service bulletin T-SB-0074-20 (August 2020) covers 2016-2020 RAV4 Hybrid vehicles that store DTC P0A80/P1AC000 and/or P0A7F/P1A8000 because dust or debris has built up in the HV battery cooling fan or intake filter; when those codes are present the bulletin's procedure calls for replacing the HV battery and cleaning the cooling fan and filter. (static.nhtsa.gov: MC-10179698-9999.pdf, 2026-10-07)

Symptoms

  • Toyota service bulletin T-SB-0074-20 describes the malfunction indicator lamp (MIL) coming on with DTC P0A80/P1AC000 and/or P0A7F/P1A8000 stored on 2016-2020 RAV4 Hybrid vehicles when the HV battery cooling fan or intake filter is clogged with dust or debris. (static.nhtsa.gov: MC-10179698-9999.pdf, 2026-10-07)

Warranty

Toyota's 2016-2018 RAV4 Hybrid Warranty & Maintenance Guides list the hybrid battery under the Toyota Hybrid System Warranty for 96 months or 100,000 miles, whichever comes first. (techinfo.toyota.com: T-MMS-16RAV4HV.pdf, 2026-10-07)

How battery warranties work.

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Do not open it yourself. The pack can hurt you with the car switched off.

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Last updated October 7, 2026. Failure and recall notes are as of that date. Spotted a mistake, or speaking for a maker? Report an error.

Hybrid Battery Test is independent. It is not affiliated with, sponsored by or endorsed by Toyota. Names and part numbers are used only to identify the vehicle and the part.