Confirm the problem
Silent car: 12-volt first. The auxiliary battery is in the hatch on these years. Ready light plus red triangle plus P0A80: scan module balance with Dr. Prius and a Veepeak OBDCheck BLE before you buy. That is diagnosis, not a pack install.
Factory HV coverage on these cars is long gone unless some aftermarket warranty is still in force. We cannot see that from here.
Options that actually exist
DIY sodium modules
Salty Hybrid / NexPower lists the Gen 2 GT2 pack at $1,890. Sodium-ion blades into the OEM case. Not Toyota OEM. They abandoned lithium after durability issues; current line is sodium GT2. Often sold out.
Warranty since March 2023: 2 years unlimited miles with a NexPower-certified installer, 1 year if you do it yourself, non-transferable. They do not guarantee the roughly 10% MPG claim you will see in forums. We will not repeat it as fact.
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If you want those modules installed by someone else, The Hybrid Geek is a NexPower reseller with mobile install. Authorized resellers also include Green Bean and My New Battery.
Paid affiliate. Tracking URL is still a placeholder in the site config, so this is their public page until Chris drops in a live affiliate link. Full disclosure
Shipped reman
Hybrid CPR lists a complete recon Gen 2 pack around ~$950 on their pricing page. Cheapest transparent recon we found. Comparison only; no public affiliate.
Editorial — unpaid. No affiliate program we could find. Linked because the price or coverage model is useful, not because anyone paid for the mention. How we choose links
Greentec Auto publishes Gen 2 reman around ~$1,399 (24 months) and new cells around ~$2,099 (48 months) in their 2026 buying guide.
Paid affiliate. Tracking URL is still a placeholder in the site config, so this is their public page until Chris drops in a live affiliate link. Full disclosure
Mobile reman / sodium
Green Bean (LKQ) cites most Prius replacements at $1,349–$1,949 installed in their 2026 cost article. Come-to-you in select markets. Warranties from 1 November 2025: recon 1 year, sodium (NMS) 4 years, other new-module lines 2–3 years; unlimited miles, non-transferable, no refunds. Mixed PriusChat / BBB warranty reputation — details on the comparison page.
Editorial — unpaid. No affiliate program we could find. Linked because the price or coverage model is useful, not because anyone paid for the mention. How we choose links
Dealer
Green Bean cites dealer work at $3,500–$5,000+. RepairPal sits at $4,501–$4,694. Baseline, not a partner. Reasonable if you want OEM paper on a clean, low-rust car you plan to keep. Expensive if the rest of the car is tired.
DIY “how” lives elsewhere
ChrisFix’s Gen 2 video already exists. We will not compete with a high-voltage procedure. If you watch it, remember orange cables can kill, and a YouTube success is not training.