Updated 30 August 2026
Publishers keep blending two different batteries into one scary number. If you only remember one thing from this page: the 12-volt and the hybrid pack are not the same part and not the same bill.
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. Failure looks like a red triangle, “check hybrid system,” codes such as P0A80, or a car that still shows life but will not stay in Ready.
Public 2026 ranges: about $950 shipped recon up through $3,500–$5,000+ at a dealer. Diagnose before you buy.
A conventional 12-volt auxiliary battery is a normal parts-store purchase — often around $80, sometimes more for AGM. We do not have a sourced 2026 national average, so treat that as a ballpark, not a quote.
These are public figures as of 30 August 2026. They are not invoices, and they are not “we priced 17 shops.” Taxes, core charges, shipping, and local labor sit on top.
| Path | Public range | What that number is |
|---|---|---|
| DIY sodium (NexPower GT2) | $1,890 Gen 2 / Gen 3 family; $1,350 Prius C | Parts, often sold out. Salty Hybrid live list |
| Shipped recon | ~$950 | Hybrid CPR complete Gen 2 / Gen 3. Core usually required. Their pricing page |
| Shipped reman / new cells | ~$1,399 reman (24 months); ~$2,099 new cells (48 months) | Greentec’s 2026 Prius buying guide |
| Mobile install | $1,349–$1,949 installed | Most Prius jobs, Green Bean’s 2026 cost article. Free mobile only in select markets. |
| Toyota dealer | $3,500–$5,000+; RepairPal $4,501–$4,694 | Dealer range as cited by Green Bean; RepairPal is a parts-heavy typical estimate. |
Public Gen 2 / Gen 3 reman about ~$1,399 with 24 months; new cells about ~$2,099 with 48 months. They have a real publisher affiliate program. We have not tested their packs.
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
NexPower reseller with mobile install. Useful if you want sodium modules and do not want to open an HV case. Their published sale commission is $100. We do not have a sourced 2026 installed-price sheet from them, so we will not invent one.
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
Cheapest transparent recon we found for a complete Gen 2 / Gen 3 pack (~$950). Comparison column only.
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
Come-to-you reman / new / sodium. $1,349–$1,949 installed on most Prius work, per their own 2026 blog. Core charges if you do not return the old pack. Mixed PriusChat and BBB warranty reputation — see OEM vs reman vs sodium.
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
| 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 |
If you are deciding whether the car itself is still worth the bill, use the 150k / 200k page.
Sources: Green Bean’s 2026 Prius cost article; Greentec Auto’s 2026 Prius buying guide; Hybrid CPR pricing page; Salty Hybrid / NexPower Gen 2 GT2 listing; RepairPal Prius HV battery estimate.
They are mixing the 12-volt auxiliary battery with the high-voltage traction pack. KBB-style roundups do this. This page keeps them apart.
Hybrid CPR’s public pricing page lists a complete recon Gen 2 / Gen 3 pack around $950. That is parts, not a nationwide mobile install, and we have not used them.