What about the bike you’ve left behind?

So you’re planning to head off on a big trip. You’ve sold almost everything you own – except all your other bikes of course. What’s going to happen to them while you’re away?

More than a quarter of UK motorcycles are off the road at any given time. Department for Transport figures show that during 2012 on average more than 500,000 of Britain’s 1.8 million motorcycles, scooters and mopeds was subject to a Statutory Off Road Notification (SORN).

Even if you just lay up a bike for 3 months while you head to Mali or Mongolia, battery maintenance when you’re away will help to avoid inconvenience and expense when the bike is ready to ride again. Perhaps not surprisingly, the chaps at OptiMate advise you to follow three simple rules if storing your machine for longer than a month.

TM140DUAL+battery2All batteries have a finite life, even if never used. Lead acid batteries last longest if stored at stable room temperature and discharge faster in hot or cold conditions (temperatures above 35°C or below freezing). As batteries discharge, the electrolyte [‘battery acid’] changes from sulphuric acid to lead sulphate and water, a process known as ‘sulphation’. Sulphate crystals attach to the lead plates inside the battery cells and make it resistant to charging.

Keep your battery 100% charged at all times. This not only keeps it in peak condition but also protects it from sulphation. The simplest way to achieve this is by connecting it to a smart charger, such as an OptiMate, whenever it is not in use.

Never use a car charger to maintain your battery or jump leads attached to a car battery to start a bike with a flat battery. Motorcycle batteries have far less resistance than those fitted to cars (just look at the difference in size) and either technique could overheat the battery, accelerating the sulphation process. The OptiMate 3+ for example charges at a rate of 0.6 amps; some car chargers are rated at 20 amps!

The OptiMate 3+ will monitor and maintain motorcycle batteries while the bike is not in use and sells for £49.99, which is a lot less than a single battery for a GS. But please, make up your own mind. For more information www.tecmate-int.com.