NiMH
Honda CR-Z IMA Battery (100.8V NiMH)
The Honda CR-Z IMA Battery (100.8V NiMH) is the high voltage battery in the Honda CR-Z (2011-2012).
At a Glance
- NiMH chemistry
- 100.8 volts nominal
- active, cabin air cooled
Specifications
| Chemistry | NiMH |
|---|---|
| Cell format | cylindrical |
| Cell maker | Panasonic |
| Nominal voltage | 100.8 V |
| Capacity | 5.75 Ah |
| Cooling | active, cabin air |
| Location | IPU under the rear cargo floor (behind the seats) |
| Weight | 29.5 kg |
Cars That Use It
- Honda CR-Z 2011-2012 2-door hybrid sport coupe, 6MT and CVT Run the checklist
What Goes Wrong
Reported failures, each from a source listed below, as of October 7, 2026.
- Honda Service Bulletin 14-064 (October 2014 product update, all 2011-12 CR-Z) says the IMA battery control software incorrectly maintains the battery so that over time it can develop a 'memory effect' that appears as reduced capacity, and DTC P0A7F may be stored; the fix is a software update. (static.nhtsa.gov: MC-10118839-9999.pdf, 2026-10-07)
Symptoms
- Honda's October 2014 dealer notice for product update 14-064 says owners may see the IMA battery charge indicator jump and/or the MIL come on with DTC P0A7F. (static.nhtsa.gov: MC-10118827-9999.pdf, 2026-10-07)
Recalls
- 11V458000 2011 On manual-transmission cars, if the engine stalls while the brake is released, engine control software may let the hybrid system's electric motor move the car opposite to the selected direction.
Check the exact car by VIN at nhtsa.gov/recalls.
Warranty
Honda's 2011 CR-Z emissions warranty parts list (APL 43829) lists the IMA battery assembly at 8 years/100,000 miles in most states and 10 years/150,000 miles for cars registered in California, Connecticut, Maine, Maryland, Massachusetts, New Jersey, New Mexico, New York, Rhode Island, Vermont and Oregon; 2012 was not confirmed. (owners.honda.com: APL43829.pdf, 2026-10-07)
Get This Pack Tested
Do not open it yourself. The pack can hurt you with the car switched off.
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 Honda, Panasonic. Names and part numbers are used only to identify the vehicle and the part.