The pattern that points at the battery
It struggles first thing and improves once running. It got gradually worse over weeks. It is four or more years old. After a jump it starts reliably for days.
A battery that has simply aged out behaves predictably: worst when cold, worst after standing.
The pattern that points at the alternator
The battery light stays on while driving. Headlights dim and brighten with engine speed. The car starts fine on a jump, runs, and then dies while you are driving or refuses to restart an hour later.
If a brand-new battery goes flat within days, the charging system is the first suspect.
Do not guess
Our test covers the battery, the charging output and the starter draw together, and it is free whether you buy anything or not. It is a short conversation that saves a wrong purchase.
Find your battery
Which NOVAX® fits your car?
Read the code off the top or side of your current battery — three digits, sometimes with letters after them, like 628 or 646.
NOVAX® is fitted and warranted through Global Batteries Xpress and authorised resellers. Find your nearest outlet — they confirm the size against the car before anything is fitted.
Where to go
NOVAX® is tested, fitted and warranted at Global Batteries Xpress outlets and at resellers we have appointed in writing. The test is free whether you buy anything or not.