Hybrid won't "READY" up
Classic 12V auxiliary failure. We confirm with a quick voltage test, replace, system resets, you're going.
Toyota · Lexus · Honda · Hyundai hybrid
Hybrid 12V Auxiliary Battery Replacement in Perth
Hybrids have a 12V auxiliary battery separate from the high-voltage pack. When it dies, the car won't even "READY" up — we replace it on the spot.
CALL NOW (08) 9456 4378Avg response: 30 minutes
- Hybrid-specific 12V auxiliary batteries
- Camry, Prius, RAV4, Corolla, ES, NX
- Safe handling — no HV pack touched
- Same on-site, same-day service
24/7
Same number, same techs
On-site
No tow, no drop-off
3-yr warranty
Nationwide
5.0★ Google
39 reviews
Wherever you're stuck, we'll come to you
We do roughly half our work in driveways, a third in office and business-park carparks, and the rest on roadsides and in shopping centres across the Perth metro.
Random electrical warnings
Multiple unrelated warning lights at start-up often point at a tired 12V. We test on-site.
Car sat for weeks
Hybrid 12V drains faster than a regular battery when the car sits. Often the first replacement after 3–4 years.
Why people call us first
Hybrids are great cars but they have a quirk — they still use a small 12V auxiliary battery to boot up the electronics. When that 12V dies, even though the high-voltage hybrid pack is full, the car won't "READY" up. People panic and think the hybrid pack has failed; it almost never has.
We stock the small AGM auxiliary batteries that Toyota and Lexus hybrids need. Replacement is safe (we never touch the high-voltage system) and takes around 30 minutes — including the system reset that some Toyotas need afterwards.
What we bring on every job
- Hybrid 12V auxiliary battery stock
- Safe install — high-voltage system untouched
- Toyota system reset / READY verification
- Memory saver for hybrid module data
Verified by Google
Real Perth customers, real Google reviews
5.0·52 Google reviews
The service I received from Sami was top notch, very quick and efficient with good pricing.. I have no problems recommending the Sami and team for your next new battery requirements.
very happy with sami, very good to know even after hours he will be of service, 100% recommend
Family company, second hand battery for my commodore as new for a very good price. Lovely local family run business, will definately. Thanks Guys!
Very nice people here, no fuss. Thank you Sami
Had the unpleasant task of being stuck with a flat (also dead and gone) battery today and made a call to Car Battery Perth 24/7. They were absolutely brilliant, got to me within 15 minutes and barely 5 minutes later had completed all scans and the battery replacement. Very fair pricing and only charged me for the battery, nothing else. Would absolutely recommend!
Wonderful service
Frequently asked questions
Will replacing the 12V mess with the hybrid pack?
No. The 12V auxiliary and the high-voltage hybrid pack are completely separate systems. We never touch the HV pack — replacing the 12V is a normal low-voltage job.
Will you do my car? It's a [European / 4WD / hybrid / stop-start]
Yes — we replace batteries on every passenger vehicle on Perth roads: Japanese, European, American, Korean, 4WDs, utes, vans, hybrids, AGM stop-start cars, even classic vehicles. Coding/registration for BMS-equipped European cars is included.
What warranty comes with the new battery?
All standard batteries come with a 3-year nationwide warranty. AGM and stop-start batteries are 3–4 years depending on brand. The warranty is honoured at any Century / SuperCharge stockist Australia-wide, not just by us.
How much does mobile battery replacement cost?
It depends on your car's exact battery spec. Standard passenger car batteries are our most affordable option, supplied and fitted on-site; AGM and stop-start batteries cost more depending on spec. There's no call-out fee and no extra charge for after-hours, weekends or public holidays. We quote on the phone before we head out — call us with your rego for an exact price.
How fast can you actually get to me in Perth?
Average response is 30 minutes anywhere in the Perth metro, day or night. CBD and inner-suburb call-outs are usually 15–20 minutes. Outer metro (Mandurah, Two Rocks, hills suburbs) can be 45 minutes — we'll give you a real ETA when you call, not a guess.
Stuck right now? One phone call, one fixed price, sorted in 30 minutes.
CALL NOW (08) 9456 4378