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

Toyota Yaris Cross
Audi A3

Audi A3

RRP £26,295Avg. savings £2,713 off RRP*Used from £10,888
Vauxhall Corsa

Vauxhall Corsa

RRP £19,855Avg. savings £5,488 off RRP*Used from £9,630
Volkswagen Golf

Volkswagen Golf

RRP £24,625Avg. savings £2,565 off RRP*Used from £8,995
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

New Geely Galaxy Battleship 700 is an AI-powered behemoth aiming to sink the Land Rover Defender
New Geely Galaxy Battleship - front static

New Geely Galaxy Battleship 700 is an AI-powered behemoth aiming to sink the Land Rover Defender

Auto Express has confirmed the hulking hybrid 4x4 is coming to the UK
News
25 Mar 2026
Car Deal of the Day: hot Volkswagen Golf R Estate offers pace and space for £301 a month
VW Golf R Estate - front cornering

Car Deal of the Day: hot Volkswagen Golf R Estate offers pace and space for £301 a month

High performance doesn’t normally come this cheap – the Volkswagen Golf R Estate is our Deal of the Day for 25 March.
News
25 Mar 2026
Surprise Cupra Tavascan update brings bigger screens and possibly a lower price
2026 Cupra Tavascan - front 3/4

Surprise Cupra Tavascan update brings bigger screens and possibly a lower price

The new entry-level Tavascan gets a 58kWh battery capable of around 270 miles on a single charge
News
26 Mar 2026