The OEM battery is a Flooded Lead Acid battery. It conforms to JIS M42.
As a flooded lead acid battery, it is a maintenance item. If unsure how to maintain a flooded battery consult proper flooded lead acid battery maintenance documentation or ask your local auto-parts store or mechanic.
Shaking the vehicle may help find the water level if it is difficult to see.
OEM battery high and low levels should be visible without removing cover.
The battery is an M42, this is a JIS format number used for Idle-Stop batteries.
It is similar to non-Idle-Stop battery xxB20L. Manufactures appear to say M42 can be used where a 60B20L would normally be used. If you have idle-stop, you should only install a battery ilde-stop rated.
| Depth | Length | Height (ex Term) | Height (w terminals) |
|---|---|---|---|
| 128mm | 196mm | 202mm | ~225mm |
The following is sourced from the specs of various M42 batteries found for sale. I do not know what the M42 spec specifies as a requirement, and the specs from various manufactures may be exceeding the standard.
| Sample | CCA | Capacity |
|---|---|---|
| A | 400A | 40Ah |
| B | ? | 38Ah |
| C [Note] | 500A (18c) | 40Ah |
| D | 400A | 40Ah |
| E | 400A | 40Ah |
Note: Sample C with a 18c CCA rating is clearly a sub-standard product, because that's not how CCA is measured, and I'm guessing this being used to hide an inferior product.
| Name | Model | Notes |
|---|---|---|
| Energizer M42L EFB 400 CCA | EM42LEFB | |
| Delkor EFB SM42B20LEFB | SM42B20LEFB | |
| AC Delco EFB SM42B20LEFB | SM42B20LEFB |
These might work. But they're not optimal. Anything group size NS40 is worth looking at.
| Name | Model | Notes |
|---|---|---|
| Century NS40ZL MF | Not Start-Stop | |
| Century N65R | Terminals backwards, might be too long to fit. Requires moving cable mounts to avoid kinking positive lead. | |
| SCA NS40ZL SMF | Should fit. The HALP I'm stranded battery. Not Start-Stop. |
They're expensive...
| Name | Model | Notes |
|---|---|---|
| MegaLife Battery | MV-19L | Start-stop? |
| PowerWorld LS40ZAL SSB Lithium Starting Car Battery | LS40ZAL |
These batteries seem most commonly warrantied for 2 years. Some manufactures offer 3 years if the battery is used in a vehicle that does not have the Idle-Stop feature.