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

Toyota Yaris Cross

RRP £26,495Avg. savings £2,380 off RRP*Used from £15,767
Audi A3

Audi A3

RRP £26,295Avg. savings £3,075 off RRP*Used from £11,995
Nissan Juke

Nissan Juke

RRP £19,785Avg. savings £6,301 off RRP*Used from £9,607
MG MG4

MG MG4

RRP £27,005Avg. savings £10,288 off RRP*Used from £11,999
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

EU petrol car sales ban to be delayed until 2040: What will it mean for the UK?
Electric car charging mega test - charging overhead

EU petrol car sales ban to be delayed until 2040: What will it mean for the UK?

With the EU delaying its ICE ban, the UK Government may come under more pressure to follow suit. 
News
8 Dec 2025
New Dacia C-Neo estate could be the ultimate family car
Dacia C-Neo - exclusive image front

New Dacia C-Neo estate could be the ultimate family car

The Dacia C-Neo estate is set to undercut rivals with a £20k asking price, and our exclusive images preview how it could look
News
8 Dec 2025
Electric car demand slows as Government grant fails to woo buyers
Ford Puma Gen-E - front action

Electric car demand slows as Government grant fails to woo buyers

EV sales rose only marginally in the run-up to the November Budget, compared with the same period last year
News
4 Dec 2025