Ebay battery Seller hybridplus, CA. stay away, battery pack didn't last, warranty not honored

Used modules are a problem where ever you buy them. Some sellers like GreenTec just charge more so their “warranty” swaps are covered.

Not sure how the hv battery causes a death rattle / misfires.

 

As you already know, a bad HV battery will not cause an engine misfire.

 

A weak battery pack will NOT "kill" the water pump. The water pump is powered from the car's 12v power system, not the high voltage HV battery. A bad engine water pump can cause the engine to overheat, which can lead to the head gasket to go bad.

Many different things can cause an engine misfire. Bad head gasket is one of the things. I would diagnose the engine misfire before spending any money to replace the HV battery. If you have a bad head gasket and HV battery, it may be time to buy a different car.

 

Buying old used batteries, some are probably older than your car (if you know how to read the stamped codes on the batteries) is always a gamble. The only way to make your car reliable again is to replace with a new battery pack. IMHO...
You can file a complaint with Ebay and they'll boot them from the site. Chances of getting your money back is slim to null.

Hope this helps....

 

If you have engine issues, your probably looking at another major expense. Those Gen3's are know for blowing head gaskets around 150K or more miles.
IMHO; you should probably verify that you don't have engine issues before proceeding further, so it'll be easier to cut your loses and move onto another car. I realize you just spent some money on a bunch of batteries, so you've got some sunk cost into it. You seem to be a bit mechanically inclined, so look for something that's a lot cheaper and easier to maintain - even if it burns a little bit more gas. The hassles and expenses aren't worth it - IMHO...

Hope this helps....

 

At this point, I'm guessing the seller has "blocked" you - automatically sending all your emails directly into his trash can.

Talk to Ebay customer service line, it's probably automated now - file a complaint about the vendor. I had success 3-4 years ago, when an overseas vendor sent me junk. They forced a reversal of charges. Another avenue to pursue is your credit card company that you used; they can do the same., but you only have 30-90 days for that. Since the vendor advertised 1 year warranty, use that with Ebay customer service and leave a negative feedback on the site. You can edit and change it later, once the vendor complies.

Hope this helps...

 

Are you paying someone to install these modules?

Sounds like they are willing to replace your nine modules.

I imagine you are in for ~$750 to buy 28-30 modules. So you want a partial refund of $250?

Reading the listing and feedback, I would speculate their obligation is only to send you replacement modules.

If you refuse replacements, eBay is unlikely to refund. eBay does have the power to refund you directly and charge them but usually that happens when there is outright fraud and no communication from the seller.

My suggestion is to drop the water pump and engine rattling complaint based on the hv battery - they know that can’t be true. I would message them and say you now understand the bad modules are a separate problem and you just want replacements for those modules.

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Paypal has a protection program also but haven’t used it in years, if you paid that way.