
From the day I bought my new '03 H-D 100th Anniversary Dyna Low Rider, it's always been plugged into a battery tender when I'm not riding it. I can attest to the validity of that last statement. It's simple, if you don't keep your battery charged with a tender in this way, you will be buying a new battery much more often. The key is to plug your motorcycle's battery into a battery tender, not just over winter, but any time you are not on the bike. If you regularly use a batter tender it will add years to the life of your battery. It will provide a continuous flow of just enough energy to offset loads and self-discharge without overcharging. So, what's the solution to extending the life of your Harley Davidson battery? A battery discharged too deeply, for too long, may be permanently damaged.A discharged battery can't start a motorcycle.A battery discharges continuously in small internal loads called "self-discharge" - it speeds up drastically as the temperature rises.Motorcycles with added accessories, such as alarm systems, have even larger loads discharging their batteries with parked.

When a motorcycle is parked, the load on the battery is small but never zero - given enough time, parking will dischage any battery.To a battery, a big load for a short time is the same as a tiny load for a long time.

And when these Indianapolis summer days get hotter thanħ0 degrees outside, you double that discharge rate. Here are a few things everyone should know about motorcycle batteries:ĭid you know that even when your motorcycle is parked and turned off, it’s losing juice? Even in ideal conditions, your bike’s battery loses about 3% of its charge every month. Sure, it may have saved you a few bucks when you bought it, but no bargain brand can ever compete with the quality and durability that comes with a genuine Harley-Davidson battery.īatteries tend to get forgotten about.

