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2002 to 2004 Toyota Prius Transmission Battery Pack

2002 to 2004 Toyota Hybrid Battery Pack

2002 to 2004 Toyota Hybrid Battery Pack

As promised, this is the third installation of a three part series on Toyota Prius Transmissions, Inverter, and now we shall talk about the Hybrid battery Pack. The first and second installations are available by following the appropriate text links [below paragraphs]. Although the 2002 to 2004 Toyota Prius Hybrid Battery Packs are for sale as separate units, it’s important to mention that all three components can be bought as one kit.

To start with, we are one of the very first distributors to sell Toyota Prius drive-line components. It was GotTransmissions vision to be one of the very first transmission companies to be properly equipped to sell Prius drive-line parts. Realistically speaking it was inevitable for the Hybrid Prius to need drive-line parts and service. We wanted to be correctly prepared now, we want to service you at the same high level you have grown to expect out of us.

There are two batteries found in a Prius. The first is a lead-acid (Pb-A) 12v accessory battery which is commonly found in most vehicles on the road. The second is the main hybrid driving battery, which is specific to hybrid electric vehicles (HEV) and electric vehicles (EV). We at are primarily concerned with the latter.

What parts come with the battery pack? The twp part numbers I know of are;
1. Part ID # G951047030
2. Part ID # G951047031

This does not include an ECU, however, all parts do come with 6 months Parts Replacement warranty. As mentioned earlier, you can buy this alone or as a set. To read the first article in this series on the Toyota Prius Transmissions/Engine this is it. The second article in this series is on the Inverter/Assist Motors, and that would be quite informative to read also.

Getting to the technical details;

I’m not an electrical engineer, although this may be somewhat overcomplicated for many folks, this is what Wiki says about Nickel-metal hydride batteries, which are used in most hybrids; A nickel-metal hydride cell, abbreviated NiMH, is a type of secondary electrochemical cell similar to the nickel-cadmium cell. The NiMH battery uses a hydrogen-absorbing alloy for the negative electrode instead of cadmium. As in NiCd cells, the positive electrode is nickel oxyhydroxide (NiOOH). A NiMH battery can have two to three times the capacity of an equivalent size nickel-cadmium battery. Compared to the lithium-ion cell, the volumetric energy density is similar but self-discharge is higher.

With the above in mind, what is more important is purchasing your parts from a trusted distributor, stocking affordable top quality Toyota Prius drive-line parts. We come to work and prove our worthiness in the transmission business every day. Because the field itself is so new, only a select few companies with the foresight to see the need are prepared now to service your Prius needs.

Having said that, it is only logical to deal with a company who knows their subject now, instead of a company playing catch up, in essence using you as a guinea pig while they learn. Avoid that whole frustrating and painful experience and call one of the few certified experts on Toyota Prius Transmissions, Inverters and Assist Motors and Hybrid Battery Packs. Call now.

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