NiMH
Toyota Prius c (NHP10) Hybrid Battery
The Toyota Prius c (NHP10) Hybrid Battery is the high voltage battery in the Toyota Prius c (2012-2019).
Specifications
| Chemistry | NiMH |
|---|---|
| Cell format | prismatic |
| Nominal voltage | 144 V |
| Modules | 20 |
| Module voltage | 7.2 V |
| Capacity | 6.5 Ah |
| Cooling | forced air (battery cooling blower assembly) |
| Location | Under rear seat |
| Weight | 31 kg |
Cars That Use It
- Toyota Prius c 2012-2019 NHP10, all US trims Run the checklist
What Goes Wrong
Reported failures, each from a source listed below, as of October 7, 2026.
- Owner complaints NHTSA lists under the Hybrid Propulsion System component for the Toyota Prius C, by model year: 2013: 13 · 2014: 5 · 2015: 3 · 2016: 2. These are all hybrid system complaints, owner reported and unverified, not only battery faults, as of 2026-10-07.
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 2003-2020 Prius C (Prius c 2012-2019 covered); its filter table shows an intake filter from MY2014. (static.nhtsa.gov: MC-10179698-9999.pdf, 2026-10-07)
- Toyota's 2019 Prius c 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-19Priusc.pdf, 2026-10-07)
- A keyword search of the 13 Hybrid Propulsion System complaints NHTSA lists for the 2013 Toyota PRIUS C finds that 5 mention warning light, 1 mention loss of power or reduced power, 8 mention stalling or shutting down (complaint text is owner-reported and unverified; as of 2026-10-07). (NHTSA complaints, 2013 Toyota Prius+C, 2026-10-07)
- A keyword search of the 5 Hybrid Propulsion System complaints NHTSA lists for the 2014 Toyota PRIUS C finds that 3 mention warning light (complaint text is owner-reported and unverified; as of 2026-10-07). (NHTSA complaints, 2014 Toyota Prius+C, 2026-10-07)
Recalls
- 19V491000 2018-2019 The DC-DC converter may fail so the 12 V auxiliary battery stops receiving power, which may cause a loss of drive.
Check the exact car by VIN at nhtsa.gov/recalls.
Warranty
Toyota's 2017, 2018 and 2019 Prius c Warranty and Maintenance Guides list the hybrid battery under the Hybrid System Warranty for 8 years or 100,000 miles; guides for 2012-2016 were not found. (techinfo.toyota.com: T-MMS-19Priusc.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.co.nz: priu_c-nhp10-min.pdf
- toyota-cms-media.s3.amazonaws.com: 2018_Toyota_Prius_c_Product_Info.pdf
- techinfo.toyota.com: T-DM-009-D.pdf
- techinfo.toyota.com: T-ERG-011-D.pdf
- techinfo.toyota.com: T-MMS-17Priusc.pdf
- techinfo.toyota.com: T-MMS-18Priusc.pdf
- techinfo.toyota.com: T-MMS-19Priusc.pdf
- static.nhtsa.gov: MC-10179698-9999.pdf
- NHTSA complaints, 2013 Toyota Prius+C
- NHTSA complaints, 2014 Toyota Prius+C
- NHTSA complaints, 2015 Toyota Prius+C
- NHTSA complaints, 2016 Toyota Prius+C
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.