Convert Your Hybrid CAR Into a Plug-In EV
Replace your weak NiMH battery with a 10 to 17 kWh Lithium-ion or LiFePO4 pack. Drive 40 to 80 km on pure electric, cut fuel costs by up to 70%, and back it with a 2-year warranty.
Choose Your Conversion Package
Three proven battery pack options. Every conversion includes in-house build, 4-hour installation, BMS integration, and a 2-year warranty on battery backup.
Essential Plug-In
- Pack: 12 kWh (rated 14 kWh)
- Range: 40 to 55 km electric, up to 70 MPH
- Fits: Toyota Prius 2004 to 2009 (2nd Gen) and ALL Toyota, Honda and Nissan Models that comes with Hybrid Battery
- Cells: EVE Lithium-ion
- Install: 4 hours at our shop
- Warranty: 2 years on battery backup
Performance Plug-In
- Pack: 15 kWh (rated 17 kWh)
- Range: 70 to 80 km electric, 80 miles combined at 100 MPG
- Fits: Prius, Aqua, Honda Vezel
- Cells: LiFePO4 or Nissan Leaf
- Tech: BMS, CAN integration, Bluetooth
- Warranty: 2 years on battery backup
Custom Hybrid Upgrade
- Pack: 10 - 20 kWh
- Backup: 40 to 150 km/l equivalent
- Fits: Prius, Aqua, Vezel (any year)
- Cooling: Keeps stock system intact
- Safety: Rear-mounted for crash protection
- Warranty: 2 years on battery backup
Since 2014
Years of PHEV expertise
500+ Conversions
Successfully delivered
2-Year Warranty
On parts and workmanship
4-Hour Install
Same-day turnaround
What You Get With Every Conversion
Every package includes premium hardware, smart monitoring, and safety integration as standard.
Customized External Charging
Plug into any standard outlet at home or work. Charge overnight, drive on pure electric by morning.
70% Fuel Cost Reduction
Cut monthly fuel bills dramatically. Most city commuting runs on electric alone, petrol only for long trips.
Lightweight Design
Saves 90 lbs versus the original NiMH pack. Better handling, better efficiency, less strain on suspension.
Seamless Mode Switching
Switch between EV, PHEV, and Hybrid modes on the fly. No stops, no reboots, no compromises.
Aftermarket BMS for Safety
Battery Management System monitors every cell in real time. Protects against over-charge, over-discharge, and heat.
Bluetooth and CAN Monitoring
Live dashboard data on your phone via Bluetooth. You can track voltage, temperature, and range.
NiMH vs Lithium: Side by Side
See exactly what you're gaining by upgrading from the factory battery to our Lithium or LiFePO4 pack.
| Specification | Original NiMH | Our Lithium Upgrade |
|---|---|---|
| Capacity | 0.9 to 1.2 kWh | 10 to 17 kWh |
| Voltage | 201.6V | 201.6V ± 2 |
| Weight | Approx. 120 lbs | Approx. 180 lbs (saves 90 lbs per kWh ratio) |
| Range per Charge | Assist only, 1 to 2 km EV | 40 to 80 km pure electric |
| Lifespan | 6 to 8 years typical | 10+ years, 4000+ cycles |
| Safety | Stock monitoring only | Aftermarket BMS with CAN integration |
| Warranty | No warranty on used OEM | 2 years on battery backup |
| Price Range | OEM replacement varies | Starts from 650,000 |
Supported Vehicles
We convert the most popular Toyota, Honda and Nissan hybrid platforms in Pakistan. Not sure if your vehicle fits? WhatsApp us the chassis number.
| Vehicle | Year Range | Recommended Pack | Estimated Electric Range |
|---|---|---|---|
| Toyota Prius 2nd Gen | 2004 to 2009 | 12 kWh EVE Lithium-ion | 40 to 55 km |
| All Toyota Cars that comes with Lithium-ion | 2010 to 2015 | 15 kWh LiFePO4 or Leaf | 55 to 80 km |
| Nissasn | 2011 to 2021 | 10 to 15 kWh LiFePO4 | 45 to 70 km |
| Honda Vezel | 2013 to 2021 | 15 kWh LiFePO4 | 50 to 75 km |
Our 4-Step Conversion Process
From the first diagnostic to warranty handover, here is exactly what happens when you choose Hybrid EV Engineering.
Free Diagnostic
We inspect your vehicle, assess battery health, and give you a no-obligation estimate.
In-Shop Build
Your custom lithium pack is built, tested, and validated on our bench before installation.
1-2 Days Install
Pack fitted to the rear, BMS wired in, charging port added. 1-2 turnaround, no weeks in the shop.
Setup and Handover
CAN and Bluetooth app configured, road test completed, 2-year warranty on battery backup, paperwork in your hand.
Frequently Asked Questions
Everything customers ask us before they book a conversion. Still have questions? Message us on WhatsApp.
How long does the conversion take?
Will this void my Company warranty?
What electric range will I actually get?
Do I need to modify my car's body?
What happens to my old NiMH battery?
What's included in the 2-year warranty?
Ready to Cut Your Fuel Bill by 70%?
Stop feeding your hybrid a dying NiMH pack. Upgrade to a lithium PHEV conversion, plug in at home, and drive on electric every day. Free estimates. No pressure. 2-year warranty on every build.