Every year up to one fifth of cars on the road will require a new battery, estimates AA Rescue, but many of these could have been prevented by being fully charged more frequently.
The problem stems from batteries taking longer to fully charge while being placed under greater demand by modern cars, which are being fitted with an ever increasing range of power-hungry ‘creature comforts’.
Noel Keogh, head of AA Rescue says: “It takes a lot longer to fully charge a modern car battery than many people realise – typically 240 miles/385 kilometres of driving with no load or eight hours of continuous driving – which can unfortunately lead to problems.
“If you only make short stop-start journeys, the battery won’t have the chance to fully charge, which will considerably shorten its life. We see cases where the battery(Dell inspiron b120 Battery, Dell kd476 Battery) has failed after only two to three years rather than the usual five to six as a result of only doing short journeys.
“At the same time, although battery technology has improved, they are made to work harder than ever before, as a modern car draws around three times as much electrical current as a 1970’s Morris Minor. The days of cars being fitted with wind-up windows are long gone and most new cars come with an assortment of electrical driver aids.”
He says this demand on the battery is why they are still our most common call-out after more than 100 years, accounting for around 30 per cent of breakdowns.
The lug looked a little green and was filthy with road dirt and corrosion, and so was everything else, including the tops of the new batteries. On a whim, I connected the positive probe of my voltmeter to the lug and touched the ground probe to the plastic battery(Dell inspiron 6400 Battery, Dell inspiron 9300 Battery ) case; sure enough, 12 volts were flowing from the terminal across the dirty batteries to the ground connections. Cleaning the lug and the battery cases cured the problem.
Here's the deal: Road grime often contains metals and salt (especially where the latter is used to deal with ice on roads). Salt is especially conductive when it's damp, so under the right conditions the dirt can provide a current path that'll drain your battery as quickly as leaving a light on will. Like they say, an ounce of prevention is worth a pound of cure, so wipe down your battery top from time to time, and if you've got any external connectors check them for signs of corrosion or shorting, particularly if you've got a battery that goes dead without any apparent cause.
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