Updated 30 August 2026
Reduced power. A kind of limp. The car still moves. That is the usual Prius hybrid-battery picture — not a silent car in a parking lot. This is a decision guide for what to do next, not a shop and not a how-to for high-voltage work.
The dash is still on. You nursed it home, or you are still driving it that way. A scan often shows P0A80 — hybrid battery pack deterioration — sometimes with other codes. That is a reason to diagnose, not a purchase order by itself.
If the dash is dark and the car is silent, that is often the small 12-volt auxiliary battery, not the traction pack. Different part, different bill. Sort those two pictures before anyone sells you a pack.
Usually cheap
A normal auxiliary battery under the hatch (Gen 2/3) or in the engine bay on some later cars. It boots the computers. If the dash is dark, the car is silent, or it acts like a regular dead car, start here.
Ballpark: often around $80, sometimes more for AGM. We do not have a sourced 2026 national average.
The expensive one
The orange-cabled hybrid battery that moves the car. The usual picture: red triangle, P0A80, reduced power, a kind of limp — a car that still moves. Many people drive it home.
Public 2026 ranges: about $950 shipped recon up through $3,500–$5,000+ at a dealer. Diagnose before you buy.
Split the pictures first. Red triangle, P0A80, reduced power, a kind of limp — and the car still moves: that is the usual HV story. Read symptoms and scan. A silent dark dash is often the hatch 12-volt. Different bill. Start there.
P0A80 means “hybrid battery pack deterioration,” not “open your wallet tonight.” Read module health with Dr. Prius / Dr. Hybrid and a Veepeak OBDCheck BLE — the adapter that app documents. Battery health only. Not a pack purchase and not an install.
Then ask if the factory still covers the pack. 8 years / 100,000 miles through 2019; 10 years / 150,000 miles from 2020 (Toyota’s 2020 announcement). If you are in warranty, the dealer is the path. If you are not, compare the paths below on public price and warranty text.
Figures as of 30 August 2026. We did not test packs. Method: public list price, published warranty language, and whether someone comes to you, ships you a box, or sits at a dealer parts counter.
| Path | Typical $ range | Who it is for | Warranty shape | DIY vs mobile |
|---|---|---|---|---|
| Diagnosis first | Dr. Prius (free + IAP tests) + Veepeak BLE ~$32; 12V often ~$80 | Anyone whose dash just lit up or whose car went silent | n/a — this is not a pack | You + Dr. Prius / Veepeak, or a shop scan |
| DIY sodium modules | $1,350–$1,890 parts (Salty / NexPower list) | Handy owners who accept HV risk and a shorter DIY warranty | NexPower since Mar 2023: 2 years unlimited miles with a certified installer, 1 year DIY, non-transferable | DIY (or NexPower-certified installer) |
| Shipped reman pack | ~$950 (Hybrid CPR) to ~$1,399 (Greentec reman) | Price-sensitive owners who will install locally or themselves | Greentec reman: 24 months. Hybrid CPR: see their pricing page. | Ship + DIY or local install |
| Mobile reman / sodium | $1,349–$1,949 installed (Green Bean 2026 blog) | Owners who want someone else under the hatch, in a market they cover | Green Bean from Nov 2025: recon 1 yr, sodium (NMS) 4 yr, other new-module lines 2–3 yr; unlimited miles, non-transferable, no refunds | Mobile (select markets) |
| Toyota dealer | $3,500–$5,000+ (Green Bean’s cited dealer range); RepairPal $4,501–$4,694 | Still in factory warranty, or you want OEM paper and will pay for it | Factory HV warranty if still covered; otherwise whatever the dealer writes on the invoice | Dealer |
Sources include Green Bean’s 2026 cost article, Greentec’s 2026 Prius buying guide, Hybrid CPR’s pricing page, Salty Hybrid’s Gen 2 listing, and RepairPal.
2004–2009
The generation most of the reman and sodium ecosystem is built around. Options are widest here.
2010–2015
Check the battery fan and filter before you shop a pack. The DIY “how” already lives on YouTube.
2016 and newer
Still mostly a warranty problem. Coverage first, aftermarket second.
The triangle came on. A vendor blog already knows you need their pack. PriusChat is useful and also a 40-page thread at 1 a.m. This guide is the middle after you drove it home: public numbers, warranty caveats, and a stop sign in front of high-voltage procedures.
Sodium and lithium conversions are not OEM. A third-party pack does not preserve Toyota’s remaining hybrid-battery warranty. Green Bean is the best-known mobile name and is not the hero here — see the honest comparison.
No. A silent car and a dark dash is often the 12-volt auxiliary battery. The hybrid pack more often shows a red triangle, P0A80, reduced power, or a limp you can still drive.
Read codes and module balance with Dr. Prius / Dr. Hybrid and a Veepeak OBDCheck BLE — the adapter Dr. Prius documents. Confirm whether the factory HV warranty still applies. Then pick a path.
No. Ranking here is public price, warranty text, and coverage model (DIY, mobile, dealer) — not a lab test and not a “best of 17.”