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Prius Battery Guide

2010–2015 · XW30

Gen 3 Prius: the triangle is on, and the car still moves

Red triangle, P0A80, reduced power, a kind of limp — you nursed it home, or you are still driving it that way. A silent dark dash is the hatch 12-volt: different bill. Then the cheap Gen 3 check: the blower and filter under the hatch, before anyone quotes a reman.

Cheaper first check

After Ready goes off, you used to hear a soft whir under the hatch — the pack blower running. A dying fan is a growl, a rattle, or sudden silence there. Pet hair and cabin junk pack the HV intake filter. People have spent four figures on a reman and still cooked the new pack because the fan and filter stayed clogged.

Heat-related limp or red-triangle drama that eases when the car cools can be cooling, not “buy a pack tonight.” We will not publish a tear-down. A shop, or a careful owner with a parts diagram, can inspect the filter and listen to the fan. Fix those first, then rescan.

Gen 3 battery fan / filter search. Confirm fitment. Not a Dorman HV pack.

Then the usual diagnosis

The other picture is a silent car and a dark dash. On these years the 12-volt lives in the hatch; start there, not with a traction pack. Symptoms.

The usual pack picture: red triangle, P0A80, reduced power, a kind of limp — and the car still moves. Scan with Dr. Prius and a Veepeak OBDCheck BLE before you buy. That kit reads battery health. It is diagnosis, not an HV install, and not a shopping cart.

Factory HV warranty on a 2015 is 8 years / 100k federally, so almost every 2010–2015 on the road is out unless a state rule or an extended policy still applies. Check the glove-box booklet.

If the pack is actually done

Sodium DIY

NexPower GT2 for the Gen 3 / Prius V / CT200h family lists at $1,890 on Salty Hybrid. Same caveats as Gen 2: often sold out, 1-year DIY / 2-year certified installer, non-transferable, not OEM, MPG gain not guaranteed.

Mobile sodium install: The Hybrid Geek or Green Bean as an authorized reseller.

Reman, shipped or mobile

Hybrid CPR recon complete: about ~$950 (their pricing page). Greentec Gen 3 reman about ~$1,399 / new cells ~$2,099 (2026 buying guide).

Green Bean most-Prius installed range: $1,349–$1,949 installed (2026 blog).

Dealer

Same expensive baseline as other gens: $3,500–$5,000+ as Green Bean cites it; RepairPal $4,501–$4,694.

ChrisFix already filmed the swap

The Gen 3 video is the 40-step “how.” This site will not rewrite it. Linking it is not the same as recommending you do it. Orange cables are still lethal.

Can a dirty fan cause P0A80?

A dying blower or a packed filter can overheat the pack and accelerate imbalance. It is not the only cause of P0A80, but it is a cheap thing to rule out on 2010–2015 cars before you spend four figures.