The Corolla Axio Hybrid and Fielder Hybrid run on the same hybrid system as the Toyota Aqua, and their batteries age the same way. If the fuel average has dropped, the battery gauge jumps around or the red triangle is on, the pack under the rear seat is the first thing to check. We replace it with genuine A+ grade cells, a 5-year written warranty and free home installation anywhere in Karachi.
The pack fades over a few months, and the car tells you in these ways. If you notice two or more, book a free diagnostic.
When the pack weakens, the engine does all the work and the average falls close to that of a normal 1.5-litre petrol car. It shows most in city traffic, where the hybrid should save the most.
The gauge shows full, drops to one or two bars within a minute of driving, then climbs back while braking. Weak modules cannot hold a charge, so the reading swings.
"Check Hybrid System" with the red triangle and master warning light. The car may go into limp mode or refuse to start. The pack has failed a self-test.
A healthy Axio switches the engine off at signals. If it keeps running or restarts every few seconds, the pack cannot hold enough charge to power the electrics.
Like the Aqua, the AC compressor is electric and runs off the hybrid battery. When the pack is weak, the AC blows warm in stop-and-go traffic and only cools once the engine is charging.
A scan shows P0A80 (replace hybrid battery pack), P0A7F (battery pack deterioration) or P3000 (HV battery control system). We read these free at your door.
The Axio is the sedan and the Fielder the station wagon; both hybrids share one drivetrain and one battery design.
The Corolla Axio Hybrid and Fielder Hybrid (chassis code NKE165, 2013–2021) use the Aqua's 1NZ-FXE 1.5-litre hybrid system and the same NiMH pack design. If you know the Toyota Aqua hybrid battery, you already know most of the story. Parts are widely available and replacement is routine work for us.
| Item | Axio / Fielder Hybrid | Toyota Aqua |
|---|---|---|
| Chassis code | NKE165 | NHP10 |
| Engine | 1NZ-FXE, 1.5 L | 1NZ-FXE, 1.5 L |
| Factory battery | NiMH | NiMH |
| Pack location | Under rear seat | Under rear seat |
The difference that matters: the Axio and especially the Fielder are larger, heavier cars than the Aqua. The same size of pack has to work harder, particularly with a full load of passengers and luggage, so it tends to show wear sooner in hard use.
Installed prices. We confirm the exact figure on WhatsApp before you commit.
| Option | Model years | Cell type | Price (installed) |
|---|---|---|---|
| Axio / Fielder NKE165 | 2013–2021 | NiMH, A+ grade | from PKR 80,000 |
| Lithium upgrade | 2013–2021 | Lithium-ion, A+ grade | from PKR 90,000 |
| Module / cell repair | 2013–2021 | Replace weak modules + balance | from PKR 35,000 |
What the price includes: the battery pack, free installation at your home or office anywhere in Karachi, a diagnostic scan before and after, cell balancing, a 5-year written warranty card and pickup of your old battery. No separate labour or transport charge.
Old battery exchange: up to PKR 20,000 credit for your old pack, depending on its condition. Diagnostic: free with any job, or PKR 2,000 on its own.
Prices for other models are on our hybrid battery price list. Outside Karachi? Send us your car model on WhatsApp and we'll advise you.
Both are good choices. The right one depends on how hard the car works and how long you will keep it.
The same chemistry Toyota fitted at the factory. It costs less, the car's computer needs no changes, and it can be serviced module by module later. Its drawbacks are weight and a shorter life in heat.
A lithium pack is noticeably lighter, holds its charge better in stop-and-go traffic and lets the car run on electric power more often. It handles heat and constant cycling better than NiMH, and its built-in BMS keeps the cells balanced. It costs more up front, and later module work is a specialist job.
Many Fielders in Pakistan work hard: family trips with a full boot, school and office runs, goods for a shop, or long ride-hailing shifts. Heavy loads and long hours push the battery through far more charge cycles in heat. That is exactly where lithium's extra durability pays off.
We come to you, anywhere in Karachi.
Send your model year, symptoms and a photo of any dashboard warning. We reply with a price and a time, usually the same day.
Our technician scans the hybrid system at your home and shows you the voltage of every module before you decide. No charge if you do not go ahead.
We disconnect the high-voltage service plug, remove the rear seat and old pack, fit the new balanced pack, clean the cooling intake and reconnect, all in your parking space.
We clear the codes, run a final scan and test drive the car with you to confirm idle-stop and EV mode work. You get the report and your 5-year warranty card.
5-year written warranty: it covers the pack and its modules against failure or a capacity drop that brings the hybrid warning back. Physical damage, flooding, tampering by another workshop and a blocked cooling intake are not covered.
Our workshop: prefer to drive in? We are on 26th Street, Badar Commercial Area, DHA Phase 5, Karachi, open 24 hours, 7 days a week.
A new NiMH battery for the Toyota Corolla Axio or Fielder Hybrid (2013–2021) starts from PKR 80,000, and the lithium upgrade starts from PKR 90,000. Module repair starts from PKR 35,000. All prices include free home installation in Karachi and a 5-year written warranty; outside Karachi, send us your car model on WhatsApp and we'll advise you.
It is the same NiMH pack design, because the Axio and Fielder Hybrid (NKE165) use the Aqua's 1NZ-FXE hybrid system. It is cooled by cabin air in the same way and fails for the same reasons. We still match the pack to your chassis code and model year before installation.
Most packs we replace are in cars that did several years in Japan before import, so the battery is often older than the owner thinks. Heat, a blocked cooling intake and heavy loads shorten its life. A new NiMH pack from us, with a clean intake, should comfortably cover the 5-year warranty period, and a lithium pack is expected to last longer.
If the car carries a family or goods every day, runs long hours or does ride-hailing, choose lithium: it handles heat and constant use better. If you drive moderate distances or plan to sell within a few years, NiMH is the lower-cost choice and carries the same 5-year warranty.
Sometimes. If the scan shows only one or two weak modules and the rest are close in voltage, we can replace those modules and rebalance the pack from PKR 35,000. The other modules are the same age and usually follow later, so for an older pack a full replacement with a 5-year warranty is better value.
Yes, free of charge, anywhere in Karachi, from DHA and Clifton to Gulshan, North Nazimabad, Malir and Bahria Town. Our technician brings the pack, tools and scanner and does the job in your parking space. You can also drive in to our DHA Phase 5 workshop, open 24 hours.