NiMH
Toyota Corolla Hybrid (ZWE211, 2020 US) NiMH Hybrid Battery
The Toyota Corolla Hybrid (ZWE211, 2020 US) NiMH Hybrid Battery is the high voltage battery in the Toyota Corolla Hybrid (2020).
At a Glance
- NiMH chemistry
- 201.6 volts nominal
- 28 modules
- forced air cooled
Specifications
| Chemistry | NiMH |
|---|---|
| Cell format | prismatic |
| Nominal voltage | 201.6 V |
| Modules | 28 |
| Module voltage | 7.2 V |
| Cooling | forced air (battery cooling blower assembly) |
| Location | Cabin area under the rear seat |
Cars That Use It
- Toyota Corolla Hybrid 2020 US sedan, LE; Toyota 2020 product info lists NiMH Run the checklist
What Goes Wrong
Reported failures, each from a source listed below, as of October 7, 2026.
Symptoms
- Toyota service bulletin T-SB-0074-20 (Aug 2020) describes the check engine light (MIL) coming on with DTC P0A80 and/or P0A7F stored because dust or debris has built up in the HV battery cooling fan or intake filter; the procedure cleans the fan and cleans or replaces the intake filter. It lists 2020 Corolla HV. (static.nhtsa.gov: MC-10179698-9999.pdf, 2026-10-07)
- Toyota's 2020 Corolla Hybrid Warranty and Maintenance Guide schedules cleaning of the HV battery cooling intake filter and refers to the owner's manual section on cleaning the hybrid battery air intake vent and filter. (techinfo.toyota.com: T-MMS-20CorollaHV.pdf, 2026-10-07)
Same Electrical Spec
These packs share this one's chemistry, voltage and module count. That is a spec match only. It does not mean the parts fit each other, so check with a technician.
Warranty
Toyota's 2020 Corolla Hybrid Warranty and Maintenance Guide lists a Hybrid Battery Warranty of 10 years or 150,000 miles from the in-service date, with other hybrid components at 8 years or 100,000 miles. (techinfo.toyota.com: T-MMS-20CorollaHV.pdf, 2026-10-07)
Get This Pack Tested
Do not open it yourself. The pack can hurt you with the car switched off.
Sources
- toyota-cms-media.s3.amazonaws.com: 2020-Corolla-Hybrid-Product-Information_9-12.pdf
- toyota-tech.eu: Corolla ZWE211 MZEH12_hvdm.pdf
- pressroom.toyota.com: toyota-extends-battery-warranty-for-model-year-2020-hybrid-p
- techinfo.toyota.com: T-DM-020-D.pdf
- techinfo.toyota.com: T-ERG-068-D.pdf
- techinfo.toyota.com: T-MMS-20CorollaHV.pdf
- static.nhtsa.gov: MC-10179698-9999.pdf
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.