Car Battery Replacement at your home

Avoid getting stranded due to a failed battery by having us replace your defective battery now

8AM – 6PM Monday to Saturday

“The company responds within an hour and dispatches a mechanic shortly after with all the tools and parts required to repair the vehicle onsite.”



“Taking a unique approach to vehicle repairs in the same way ‘Uber’ changed the taxi industry”


“InstaMek is an on-demand service that allows vehicle owners to request and schedule a meeting with a fully certified mobile mechanic.”


Auto Battery Replacement Service

How much does a Auto Battery Replacement cost?

Typically, the cost of car battery replacement ranges between $250-$400, including the cost of installation. The price varies on the size of the battery – commonly the larger the engine, the larger and more expensive the battery. German vehicles commonly have larger batteries or batteries installed under the seat and can cost up to $600. Truck batteries are generally more expensive as well.

Fast and easy service at your home

Backed by 12-month, 20,000-km guarantee

How do Car Batteries work?

The majority of car batteries rely on a lead-acid chemical reaction to get things moving and grooving. These car batteries fall into the SLI category. SLI is the abbreviation of “Starting, Lighting, and Ignition.” It provides short bursts of energy in order to produce power for the lights, engine, and other accessories. Once the battery makes the engine jolt to life, power for the car is supplied by the alternator. 

When to replace your Auto Battery?

  • Your car doesn’t start. A new battery has a definite capacity to provide power. This capacity is referred to as the cranking amps rating of the battery. The actual amps that a battery can supply become lower than its original rating as a battery ages. Once the cranking amps fall below a critical threshold, it will be hard or impossible to start your car.
  • Battery or charging system warning light is illuminated. A mechanic must perform a few basic tests to pinpoint if a battery replacement is necessary when a battery or charging system warning light illuminate.
  • Electrical components don’t work. Vehicle electrical components such as the security system can malfunction once a battery has started to fail, and the voltage produced by the battery drops. If you are experiencing electrical malfunctions, it’s a smart idea to have the battery tested.

How to change a Car Battery?

  • A temporary power source might be installed to avoid the possibility of losing radio presets or stored data in the PCM while the battery is out. When the battery is already completely unusable, this step is not needed.
  • The vehicle’s negative cable is detached from the battery, followed by the positive cable. The battery tie down system is loosened and the old battery will be taken out.
  • Cable ends and wiring are carefully examined to ensure no corrosion and cleanliness. Corrosion can be extreme and cable replacement or wiring repair is necessary in some cases.
  • The new battery is installed and the tie down system is reinstalled. Anti-corrosion compound is applied to the battery terminals. The positive terminal is reconnected followed by the negative terminal.
  • Some vehicles, like some models of BMW, VW, and Audi, may need PCM programming to input battery parameters. This step, achieved using a specialized scan tool, is essential to maximize battery life and avoid electrical system malfunctions.
  • The car is started and charging system output is measured and compared against the factory OEM specification to guarantee that the new battery will properly recharge. In general, charging output will be in the range of 13.8 to 14.8 volts but the exact specifications depend by built and model.

Is it safe to drive with a battery problem?

Yes, however, if you have a weak battery you might be left stranded somewhere if the battery dies completely and you cannot start your car. A faulty battery may also unnecessarily overload the alternator and could badly affect the operation of the vehicle’s electrical system, including the vehicle security system and the shift interlock.

Our Clients Say The Nicest Things

Dylan Stilwell
Dylan Stilwell
23:26 07 Dec 20
Called to get a battery replacement Doug was our service rep and it was done quickly and efficiently. Battery replaced in no time and car was ready to go. Saved me from calling a tow truck to deliver it to my dealership. Great service and pricing was good.
00:16 25 Jul 20
I've used Instamek a couple of times before and had Doug as my mechanic this time! He came and replaced my battery for me and was super friendly and fast! 5 stars to Doug!! My only issue is that instameks pricing is quite a bit higher than others for the same services!
Kim Brown
Kim Brown
23:02 18 Jan 20
I really appreciated Doug from InstaMek coming and installing a new battery in our car (in -30, I might add) and getting the vehicle up and running. He came at the scheduled time and was thorough and efficient and I wouldn’t hesitate to recommend.
Joel Leclerc
Joel Leclerc
23:00 18 Jan 20
instaMek came through in a pinch with mobile battery replacement during an extremely cold week in Calgary. Service was prompt, courteous, and on time and the whole experience was smooth from start to finish. Thanks!
Ray Vodden
Ray Vodden
04:23 16 Jan 20
The coldest day of 2020 in Calgary - battery died - messaged and quoted within 20 mins and scheduled that day - eta had to be put back but was informed which was fine - mechanic Doug was fantastic 10/10 very easy and reasonable price for service 🙂

We are open from 8am - 6pm Monday to Saturday