Quote:
Originally Posted by Isaac Zachary
Thanks for the info! I had no idea of the history or current situation for Toyota NiMh batteries except that there may be supply chain issues or something.
All I know is I went to check the current price of an OEM HV battery for my Prius on parts.Toyota.com and say the batteries marked as "No longer available." Knowing the gen 3 batteries has basically the same modules I also looked up a couple years of gen 3 Prii and also saw them marked as "No longer available." Of course that doesn't mean that it could be from supply shortages or something, as I'm no expert on what's actually happening.
2006 Toyota Prius Hatchback Battery assembly hv supply. Electrical, wiring, cable - G951047031 - Genuine Toyota Part |
https://parts.camelbacktoyota.com/oe...ery-g951047031
Quote:
Originally Posted by Ecky
Thermal issues are one of the major reasons Civic hybrid batteries had high failure rates. I've known people to upgrade the fans in their Insight batteries. Probably the kindest thing you could do for your battery would be to move to coastal California or PNW.
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The 03-05 was okay - a little worse than the Insight. They retained the baffles that helped with cell cooling. In the '06-09, they added 12 cells and made the pack notably more compact - no baffles. The cells were simply staggered. This insured that all 132 cells got terrible cooling as 2/3 of the circumference of the cell opposite the inlet direction received no cooling at all. In 09, they tried to address this by increasing the gap... they just created a more pronounced temperature gradient across the cell.
It didn't help that they went with a hybrid mechanical/electric compressor in the 06-11. That added strain on the battery increased the cycle depth and count.
Mild climate FTW.