
Battery Boost & Replacement
Dead batteries are one of the most common reasons trucks stop. A boost may get you going; testing and replacement fix the cause.
- AvailabilityCalls and messages 24/7
- WhereRoadside, yard or jobsite
- CategoryRoadside & Emergency Assistance
- On-site repairWhere feasible and safe
About battery boost & replacement.
Dead batteries are one of the most common reasons trucks stop. A boost may get you going; testing and replacement fix the cause.
A mobile mechanic can look at the unit where it stands, whether that is the roadside, a yard or a jobsite. That can avoid a tow and shorten downtime when the fault is suited to on-site work.
Part of Roadside & Emergency Assistance.

When you might need it.
Any of these is a good reason to call and describe what the unit is doing.
Dead or slow cranking
Cold-weather failures
Repeated flat batteries
Dash electronics dead

What the service involves.
Testing batteries and charging
Boosting where appropriate
Replacing batteries if stock allows
Checking the alternator
Causes and good habits.
These are possibilities, not a diagnosis. The only way to know is to test the unit.
Possible causes
- Cold weather and age
- Lights or accessories left on
- A charging system that is not charging
Practical tips
- Test the batteries before winter
- Fix the cause so the boost is not a repeat

What to expect.
A boost does not fix a failing battery or charging fault.
On-site repair depends on the fault, parts, vehicle condition, safety and service feasibility.
(437) 601-8551Before you call
- Exact location, and direction of travel on a highway
- Truck or trailer type, make and year if known
- What happened and what warnings you see
- Whether the unit is somewhere safe
- A number we can call back
From the first call to the fix.
Call or message
Tell us where the unit is.
Describe the fault
Symptoms, lights, noises, leaks.
Agree the plan
Feasibility and dispatch, discussed honestly.
Diagnose and repair
On site where it is possible and safe.
Services that often go together.

Battery Testing & Replacement
Heavy-duty batteries wear out, especially in Canadian winters.

Alternator Replacement
If the alternator stops charging, batteries drain and electrical systems fail.

Truck No-Start Service
A truck that won't start is stuck revenue.

Starter & Alternator Repair
Starting and charging problems often arrive together.
Frequently asked questions.
Is a boost enough?
Sometimes. If the battery or alternator is at fault the problem will return.
How do I request this service?
Call (437) 601-8551 or message us on WhatsApp with your location and the issue. For non-urgent work, use the contact form.
Can every repair be done on site?
No. It depends on the fault, parts, vehicle condition, safety and feasibility.
Stranded on the Road? Let's Talk.
Tell us where your truck or trailer is located and what happened. Contact Fellows to discuss mobile repair options and next steps.
(437) 601-8551Have ready: exact location, truck or trailer type, what happened or what warnings you see, whether the unit is somewhere safe, and a callback number. Timing, dispatch and on-site repair depend on location, availability, the fault, parts and safety.