First Look Inside the NexPower Sodium Ion Battery for Toyota Hybrid Cars

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Experience our first detailed teardown of the groundbreaking NexPower sodium-ion battery designed for Toyota hybrid vehicles. In this exclusive video, we unveil the internal architecture of this power source that's set to transform the hybrid market.

Watch as we disassemble the complete battery module to reveal its innovative 5-cell series configuration, delivering a robust 15.5V output. Each sodium (Na) cell is meticulously arranged with thin copper heat exchange plates between them, ensuring optimal thermal management during charging and discharging cycles.

We'll examine the sophisticated passive balancing circuitry that maximizes cell life and performance while preventing overcharging. Learn how this cutting-edge sodium technology eliminates the need for scarce lithium resources while delivering comparable power density at a fraction of the cost.

See firsthand how these modules are engineered for seamless integration with Toyota's hybrid systems, offering drop-in replacement capability with enhanced performance characteristics and potentially longer service life than traditional lithium-ion packs.

Whether you're a hybrid vehicle enthusiast, an automotive technician, or simply curious about the future of sustainable transportation technology, this deep dive into NexPower's sodium battery innovation offers unprecedented insights into the next generation of hybrid power solutions.

#SodiumBattery #ToyotaHybrid #BatteryTechnology #NaIonBattery #EVTechnology #Aftermarket #BatteryTeardown #AutomotiveTech #SustainableTransport #HybridCars #NexPowerBattery #GreenTechnology #BatteryModules #ThermalManagement
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My lithium battery pack lasted about a year. Had the V2.5 "upgrade" done within a few months; didn't notice much of a difference and it may have been a downgrade. Anyhow, I have around 360 miles on this V3 Sodium Ion battery as of today (02/02/2025). I have a well maintained 2010 Prius with 241k miles and getting around 42 mpg (38 mpg prior) driving mostly highway (aggressive 85 + mph). But, I do drive normal-ish on city streets. so far so good...

zerothree
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Interesting you doing a great job as always thanks for your time

axelpluto
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Thanks for this. With Toyota raising the price the first of the year the new replacement batteries for an older car no longer make much financial sense. I’m hoping these turn out to be a good replacement for my 2 gen2 Prius’s.

texaspowerman
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What's the advantages in respect to the oem modules?

FedericoTesta
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Are these really sodium? They look like lithium cells. First time see sodium cell in "soft" package. It would be interesting do puncture test and check if it wont catch fire as sodium should not burn if damaged.

aurimasgutgalis
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Is there any other third party making aftermarket batteries as good as Toyota I’m sick of jack shit products he releases new version to fix old version how about you release a product that is durable and properly tested and as reliable as Toyota oem first

mattcongiusta
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Those paper thin copper ‘plates’ concern me. There’s no way they are providing any meaningful heat dissipation, except for into the neighboring cells. What is that board on the end? Is it a BMS? I can’t really see any components that would indicate so, which must mean it’s passively balanced? That’s a little concerning too, considering how dramatic is the voltage range of SIB.
I was really excited for this for a Highlander hybrid, but I’m going to try to find out more before I’m willing to trust this.
Have there been any teardowns by electrical engineers? I can’t determine if Jack is one, but his “test engineer” listing his qualifications as being an uber driver is also a gigantic red flag. (To be clear there’s nothing wrong with driving for Uber—I do too—but it’s not an engineering qualification).

Neberheim
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