Skip advert
Advertisement

Battery conditioners

If you have a second car that rarely gets used, a trickle charger is ideal for maintaining the battery's power. We put six to the test

Flat batteries are the bane of owning a classic car or infrequently used second motor. Leave the vehicle idle for a few weeks, and just when you need it there's the dreaded click as you turn the key.

The solution is to keep the battery topped up with a trickle charger, ensuring immobilisers and the like won't run it down while the car sits in the garage. There's a wide choice on the market, but which leads the charge for top honours?

Verdict

At £50, the CTEK 36 is the most expensive product on test, but it combines three charging modes in a unit that can work as a reviver and a conditioner.
The Accumate and Airflow performed well, with the former narrowly securing second position - although these chargers are more geared to conditioning only.

Skip advert
Advertisement

New & used car deals

Omoda 5

Omoda 5

RRP £24,040Avg. savings £1,535 off RRP*Used from £18,790
MG MG4

MG MG4

RRP £27,005Avg. savings £6,250 off RRP*Used from £9,790
Vauxhall Corsa

Vauxhall Corsa

RRP £19,870Avg. savings £5,936 off RRP*Used from £8,500
Audi A3

Audi A3

RRP £26,310Avg. savings £2,657 off RRP*Used from £9,495
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

New car discounts as high as 54 per cent have landed in Britain
Opinion - Toyota discounts

New car discounts as high as 54 per cent have landed in Britain

Mike Rutherford thinks Toyota has declared war on its rivals through price discounts.
Opinion
25 May 2026
New Skoda Fabia facelift to transform sensible supermini with more style and hybrid tech
Skoda Fabia design render

New Skoda Fabia facelift to transform sensible supermini with more style and hybrid tech

Skoda’s sensible hatch was due to be axed by 2027, but now it’s here to say and is due to be updated as the brand works to keep its petrol-powered car…
News
25 May 2026
Citroen 2CV to return: a £13k EV city car honouring the iconic original
Citroen 2CV teaser

Citroen 2CV to return: a £13k EV city car honouring the iconic original

Citroen has finally confirmed the long-rumoured revival of its famous 2CV and our exclusive images show what it could look like
News
23 May 2026