# EV Cargo Van Battery Diagnostics and Service in Corona, CA

Canonical: https://boxtruckrepairshop.com/services/specialty-upgrades/ev-battery-service/
Business: Box Truck Repair Shop, Yorba Linda, CA. Serving Corona, California.
Phone: (714) 909-1844 | Email: info@ocrvcenter.com

Yes, our Corona, California shop diagnoses and services high voltage battery systems on electric cargo vans, including state of health testing, module and cell fault isolation, cooling system checks, and 12 volt support battery replacement. We help Corona operators of electric delivery vans understand range loss, charging faults, and warning lights, then repair what is safe and serviceable on the pack and its supporting systems.


## What this includes
- High voltage battery state of health and capacity testing
- Charging fault and onboard charger diagnosis
- 12 volt auxiliary battery testing and replacement
- Battery cooling loop, pump, and coolant inspection
- Module and cell balance readout and fault code isolation
- Charge port, connector, and cable inspection and repair
- Range loss and thermal management troubleshooting

## Who it is for
- Corona delivery fleets running electric cargo vans on daily routes
- Operators seeing reduced range, slow charging, or battery warning lights
- Owners needing a health report before buying or selling a used EV van

## Pricing
Diagnostic testing and 12 volt or cooling repairs sit at the lower end. Larger high voltage cooling and module service reaches the upper range depending on parts and access.

## FAQ
### Do you open and service the high voltage battery pack?
Yes, we access and service the high voltage pack following manufacturer safety and lockout procedures. We test module and cell balance, isolate faults, and service the cooling and connections, then advise Corona owners on which repairs are worth doing versus a full pack replacement.

### Why has my electric van lost range?
Range loss usually comes from natural cell aging, hot or cold weather, a struggling cooling system, or a charging fault. Our Corona area shop tests actual battery capacity and thermal performance so you know whether the pack is healthy or degrading.

### Can you replace the small 12 volt battery on an EV van?
Yes. Electric vans still use a 12 volt battery for accessories and control systems, and a weak one causes strange faults. We test and replace it quickly so your Corona van starts up and charges reliably.