Parts kit for installing Optima battery on 2004, 2005, 2006, 2007 & 2008 Prius

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Parts kit for installing Optima battery on 2004, 2005, 2006, 2007 & 2008 Prius

This part kit includes:

A positive connector (custom made for us)
A Negative connector with cable.
A vent hose connector and plug
Detailed instructions that will save you time!

You need this kit to install the Optima battery in a Toyota Prius 2004, 2005, 2006, 2007, and 2008 because the Prius comes with connectors for Japanese electrical posts. The kit replaces the connectors and allows you to hook up the vent tubes.

The battery itself fits nicely in the compartment.

With this kit you can replace your Prius 2004, 2005, 2006 2007 and 2008 battery with a longer lasting battery.

You can keep the original Toyota battery connectors so if you or a future owner of the car should ever want to go back to a battery with Japanese electrical posts you can.

The Federal Magnuson-Moss Warranty Act of 1975 prohibits a manufacture from curtailing warranty coverage due to after-market parts unless it can be demonstrated that they caused the problem. (For more information click here and scroll down go to paragraphs under "Tie-In Sales" Provisions.)

Tools needed:

flat screw driver
10mm wrench or 10mm deep socket
10mm socket
socket extender
12mm wrench or socket
1/2 inch wrench or 1/2 inch deep socket
vise, large crescent wrench or vice grips
Tape

The positive connector has to connect with the battery and the Toyota fuse assembly. We had it custom made! You also will not find the vent connectors in an auto parts store.

If you have no desire to work on electrical parts you may want to buy the kit and have your battery professionally installed.

At least three users have told me that their 2001-2003 Prius now gets better mileage with the new battery. One told me that getting a new battery restored his mileage back to the original mileage he was getting when the car was brand new and another told me that he is now getting better mileage then he did originally. So if you 12 volt battery is weak it could also be affecting your gas mileage.

If you are not sure about the state of your current battery we have instruction on how to test it here.

Customer Comments regarding our 2001-2003 kit:

"2002 Prius is alive again

Thank you for developing and selling the conversion kit so we could put a new 12 volt battery in our Prius. We bought a new 12 volt battery from Toyota (for more than $160) and then found out that we needed to buy a conversion kit to install it. We ordered the conversion kit from them over a month ago and it still has not come in. It was very sad to look at our dead Prius in the driveway, and to have to drive something that produces more pollution and uses more fuel. Thanks to you the Prius is back on the road. I guess we'll put the Toyota battery in our 2005 Prius when it develops a need for a new one.

You certainly prove that being an entrepreneur can be a good thing. Your other products look very interesting also. By the way, I placed our order on a Friday, got the conversion kit in the mail the next day and the battery arrived on Monday. The conversion kit parts are of very high quality and the instructions are very clear. It is hard to beat that. I wrote to the general manager of our Toyota dealer and offered to guide his customers your way if they end up in the same situation we were in.

Thanks for products that were badly needed,"

L. T., Louisa, VA

From a California Customer:

"I am truly amazed that the ordered Prius battery arrived as quickly as it did (particularly considering there was no cost for shipping).

All in all (our run to Kragen for vice grips not inclusive), it took approximately 20 minutes to install the battery and the kit. Instructions were astoundingly clear--even for a non-mechanical type like myself--and the illustrations contained within were a bonus.

Compared to the $400 (and then some) for a replacement battery plus service Toyota wanted to charge us, buying through your site was of benefit in numerous ways.

Thank you, once again, for the battery and your follow-up."

G. S., Hayward, CA

From a customer in Washington state:

"I want to thank you for prompt shipping of my Prius battery and installation kit. It was very easy to install. (about 30 min) Everything in the kit was a perfect fit. I think your battery and kit is far superior to the original Toyota battery setup." S. R., Seattle, Wa.

From a California Customer:

"I ordered an upgrade 12 volt battery for a 2003 Toyota Prius with a kit containing a spacer and new connectors to fit the upgrade battery to the cars system. I ordered it late on a Friday and both the battery and other parts arrived the following Wednesday with all in one box. Better yet, the order included free shipping. The text installation instructions were clear and adequate to install the parts. A diagram or two would have helped but I had little trouble. Overall, I was very satisfied." R. H., San Jose, California

Note: We have added diagrams to the instructions.

From a customer in Florida:

"The Prius Battery completion kit was complete and prevented me from having to locate various components to complete the project. Directions were clear for installation. Battery arrived dropshiped UPS from source that was near to me (120 miles) quickly. Conversion went quickly (did not time it but was about a half hour). After four starts of the engine to get rid of the warning light (as informed in the instructions) everything worked perfectly." J. J., Williston FL

From a customer in Vermont:

"Very quick shipping, everything arrived in great shape. The instructions included were very clear and the product did exactly as was described. This saved me a lot of time and money using this product. Thanks!" B. H., Essex Junction VT

From a customer on a Toyota Dealers lot in Washington DC:

"I recently ordered and received a Prius battery and adapter kit that WORKED LIKE A CHARM. The clarity and extremely well thought out nature of the instructions alone may have been worth the price. My sister and I installed it in the parking lot of a dealer who could not get us a Toyota replacement for 3 weeks!

You might like to know that my sister is a special ed teacher with 2 kids. She was facing over $600 in car rental fees if not for you!"

Toni Burnham

We have been making battery kits for the 2000-2003 Prius for years but did not make one for the 2004, 2005, 2006, 2007, & 2008 becuse there was no American made battery that was readily available. Now there is!

Bernard Littman, Owner E Learn Aid

Please Note: California Proposition 65 Warning Battery posts, and the negative terminal, contain lead and lead compounds, chemicals known to the State of California to cause cancer and reproductive harm. Wash hands after handling.