Project Lithium

Fall in love with your hybrid all over again

Introducing the first lithium upgrade battery for Prius

half the weight

Stock NiMH battery weights 80 lbs! Nexcell lithium pack weight less than 40 lbs

2.6 times more powerful

Nexcell lithium battery delivers 260Amp peak current compared to 100Amp peak current from the stock NiMH battery

Better fuel economy

Nexcell lithium battery maintains a optimal voltage to 'trick' the computer in favor of using electric power. Resulting in better fuel economy.

Highest level of safety

Nexcell LiFePO4 lithium solution is proven to be safe and has been tested in extreme conditions around the world. Test and Install videos available on YouTube, search keyword "Dr. Prius lithium test"

Toxic free solution

No more hazardous chemical emitted from NiMH chemistry.


Nexcell Lithium Upgrade Battery replacement costs less than the stock Toyota replacement! We searched and negotiate in large quantities of the highest quality lithium cells. This translates the savings directly to customers.

Replace, upgrade Toyota/Lexus hybrid battery with Nexcell Lithium power

“Wanted to let you know the Nexcell battery worked like a charm. My Prius is better than I've ever experienced. It seems like I can't drain it to 0%, even if I tried. -

Dave M., Dallas, TX

Finally got to California and tested pack over Siskiyou pass... It's a totally different car at the highest elevation of I-5 when it's down at 2-3 bars. Still lots of power! So much different than a worn out NiMH that runs out of power and the engine needs the accelerator nearly floored with no speed or power to keep going. I was so impressed my first thought is you should brand it as such. Call it the "Hill Climber Lithium Power for Prius" Rush hour in Portland in EV mode was almost as awesomely impressive as well - YouTube

Deane Olympia, Seattle, WA

First time hitting 3 miles on pure EV mode, incredible, car drives like new and accelerate faster then new. Thank you Dr. Prius

Larry Chen, Temple City, CA