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 £18,290
Nissan Juke

Nissan Juke

RRP £19,805Avg. savings £4,597 off RRP*Used from £7,595
MG MG4

MG MG4

RRP £27,005Avg. savings £5,225 off RRP*Used from £10,490
Hyundai Tucson

Hyundai Tucson

RRP £29,840Avg. savings £5,624 off RRP*Used from £11,995
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

Car Deal of the Day: Lofty Toyota bZ4X Touring comes with a low price
Toyota bZ4X Touring - front cornering

Car Deal of the Day: Lofty Toyota bZ4X Touring comes with a low price

Toyota has continued to improve the bZ4X, and the new Touring version is probably the best of the lot. It’s our Deal of the Day for 2 July.
News
2 Jul 2026
Car Deal of the Day: Skoda Octavia Estate is a cavernous family car for £210 a month
Skoda Octavia Estate vRS - front cornering

Car Deal of the Day: Skoda Octavia Estate is a cavernous family car for £210 a month

Not many cars tick all the boxes, but the Skoda Octavia Estate is one of those. It’s our Deal of the Day for 3 July.
News
3 Jul 2026
Car Deal of the Day: Omoda 7 exhibits big value at £204 a month
Omoda 7 - front cornering

Car Deal of the Day: Omoda 7 exhibits big value at £204 a month

The 7 is one of Omoda’s latest models in its ever-expanding range of cars for Brits. It’s our Deal of the Day for 1 July.
News
1 Jul 2026