Hybrid Battery Test

NiMH

Honda Insight 2nd Generation IMA Battery (100.8V NiMH)

The Honda Insight 2nd Generation IMA Battery (100.8V NiMH) is the high voltage battery in the Honda Insight (2010-2014).

At a Glance

  • NiMH chemistry
  • 100.8 volts nominal
  • 7 modules
  • forced cabin air cooled

Specifications

ChemistryNiMH
Cell formatcylindrical
Nominal voltage100.8 V
Modules7
Module voltage14.4 V
Capacity5.75 Ah
Coolingforced cabin air (compact cooling system in IPU)
LocationIPU beneath the rear cargo area floor

Cars That Use It

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 Honda Insight, by model year: 2011: 1. These are all hybrid system complaints, owner reported and unverified, not only battery faults, as of 2026-10-07.
  • Honda Service Bulletin 14-064 (October 2014 product update, 2010-12 Insight and 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 an IMA battery control module 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)

Get This Pack Tested

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

Book a battery test Find a tech near you

How to test a hybrid battery safely

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. Names and part numbers are used only to identify the vehicle and the part.