Performance & Start/Stop Batteries

The specialized, high-capacity AGM/EFB solutions required for modern vehicles with Start/Stop systems. Longest warranties available.

Understanding AGM & EFB Batteries

Modern vehicles with Start/Stop technology require advanced battery chemistry to handle frequent engine restarts and power-hungry electronics. Standard flooded batteries cannot meet these demands, which is why manufacturers specify either AGM (Absorbent Glass Mat) or EFB (Enhanced Flooded Battery) technology.

EFB (Enhanced Flooded Battery)

What It Is

An improved version of traditional flooded batteries with thicker plates and enhanced cycling capability. Designed as a cost-effective solution for entry-level Start/Stop systems.

Best For

Entry-level Start/Stop vehicles (VW Polo, Ford EcoSport)
Vehicles with basic Start/Stop (no regenerative braking)
Budget-conscious replacements
Standard electrical loads

Key Benefits

2-3x better cycle life than standard flooded
Better charge acceptance for Start/Stop
More affordable than AGM
Handles moderate deep cycling

AGM (Absorbent Glass Mat)

What It Is

A sealed, maintenance-free battery where the electrolyte is absorbed in a fiberglass mat. This design allows for superior performance, vibration resistance, and deep cycling capability.

Best For

Premium vehicles (BMW, Mercedes, Audi)
Advanced Start/Stop with regenerative braking
High electrical load (premium audio, heated seats)
Vehicles requiring maximum performance

Key Benefits

3-4x better cycle life than EFB
Superior charge acceptance
Vibration resistant (ideal for boot mounting)
No maintenance required

Which Battery Do You Need?

⚠️ Critical Rule: Match Your Original Battery Type

Your vehicle was designed for either EFB or AGM. Never downgrade from AGM to EFB on a vehicle that originally came with AGM. The charging system expects AGM chemistry, and using EFB will cause premature failure and void warranties.

Choose EFB if:

Your vehicle originally had EFB
Entry-level Start/Stop system
Standard electrical accessories
Budget is a consideration

Choose AGM if:

Your vehicle originally had AGM
Premium brand (BMW, Mercedes, Audi)
Advanced Start/Stop with regen braking
High electrical load or boot-mounted battery

Expert BMS Coding & Registration

Installing a new AGM or EFB battery in a modern vehicle is not enough. The vehicle's Battery Management System (BMS) must be registered (or "coded") to accept the new battery. Skipping this step will cause the system to overcharge your new battery, destroying it in months.

We are one of the only specialists in Alberton with the advanced diagnostic tools to perform this critical service for BMW, Mercedes, Audi, and other premium vehicles.